/* ================================
   IPPO Landing Page - Main Styles
   Education SaaS Design System
   ================================ */

/* ================================
   CSS Variables & Color System
   ================================ */
:root {
    /* Primary Colors */
    --primary-blue: #1e40af;
    --primary-blue-dark: #1e3a8a;
    --primary-blue-light: #3b82f6;
    --accent-red: #ef4444;
    --accent-red-dark: #dc2626;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Success Colors */
    --success-green: #10b981;
    --success-green-light: #d1fae5;
    
    /* Typography */
    --font-ja: 'Noto Sans JP', sans-serif;
    --font-en: 'Poppins', sans-serif;
    
    /* Spacing */
    --section-padding: 100px;
    --container-max-width: 1200px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ================================
   Reset & Base Styles
   ================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-ja);
    color: var(--gray-800);
    line-height: 1.7;
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition-base);
}

/* ================================
   Container & Layout
   ================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.sp-only {
    display: none;
}

/* ================================
   Typography
   ================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--gray-900);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.875rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    font-size: 1rem;
    line-height: 1.8;
}

strong {
    font-weight: 700;
    color: var(--primary-blue);
}

/* ================================
   Buttons
   ================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--primary-blue-dark) 0%, var(--primary-blue) 100%);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--white);
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid var(--primary-blue);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.btn-secondary:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: transparent;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.9375rem;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.btn-outline:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    background: var(--gray-50);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.125rem;
}

/* ================================
   Fixed CTA Button
   ================================ */
.fixed-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.fixed-cta.visible {
    opacity: 1;
    visibility: visible;
}

.fixed-cta button {
    padding: 16px 24px;
    box-shadow: var(--shadow-xl);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(30, 64, 175, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(30, 64, 175, 0);
    }
}

/* ================================
   Header
   ================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    padding-bottom: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-image {
    height: 40px;
    width: auto;
    flex-shrink: 0;
    transition: var(--transition-base);
}

.logo:hover .logo-image {
    transform: scale(1.05);
}

.logo-icon {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    transition: var(--transition-base);
}

.logo:hover .logo-icon {
    transform: scale(1.05);
}

.logo-text-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text {
    font-family: var(--font-en);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-red);
    letter-spacing: 1px;
    line-height: 1;
}

.logo-tagline {
    font-size: 0.6875rem;
    color: var(--gray-600);
    font-weight: 500;
    line-height: 1;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav a {
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition-fast);
}

.nav a:not(.btn-outline):hover {
    color: var(--primary-blue);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--gray-700);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: 20px;
    flex-direction: column;
    gap: 16px;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition-fast);
}

.mobile-menu a:hover {
    background: var(--gray-100);
    color: var(--primary-blue);
}

/* ================================
   Hero Section
   ================================ */
.hero {
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    padding: 60px 0 40px;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cg fill="none" fill-rule="evenodd"%3E%3Cg fill="%233b82f6" fill-opacity="0.05"%3E%3Cpath d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E');
    opacity: 0.3;
    pointer-events: none;
}

.hero-bg-shape {
    position: absolute;
    top: -30%;
    right: -15%;
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* コンパクトバッジシステム */
.hero-top-badges {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.badge-free-compact {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
    color: var(--white);
    font-weight: 700;
    font-size: 0.9375rem;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.5);
    animation: bounceIn 1s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.badge-free-compact i {
    font-size: 1.125rem;
}

.badge-ai-compact {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    animation: bounceIn 1s ease 0.2s both;
    border: 2px solid rgba(255, 255, 255, 0.15);
}

.badge-users-compact {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    color: var(--white);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: bounceIn 1s ease 0.4s both;
}

@keyframes bounceIn {
    0%, 20%, 40%, 60%, 80%, 100% {
        animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
    }
    0% {
        opacity: 0;
        transform: scale3d(.3, .3, .3);
    }
    20% {
        transform: scale3d(1.1, 1.1, 1.1);
    }
    40% {
        transform: scale3d(.9, .9, .9);
    }
    60% {
        opacity: 1;
        transform: scale3d(1.03, 1.03, 1.03);
    }
    80% {
        transform: scale3d(.97, .97, .97);
    }
    100% {
        opacity: 1;
        transform: scale3d(1, 1, 1);
    }
}

.hero-title {
    font-size: 2.75rem;
    margin-bottom: 20px;
    line-height: 1.3;
    color: var(--white);
    font-weight: 900;
    letter-spacing: -0.5px;
}

.title-highlight {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

.title-highlight::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6 0%, transparent 100%);
    border-radius: 2px;
}

/* モダンなサブタイトル */
.hero-subtitle-modern {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.subtitle-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.subtitle-main {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.subtitle-text {
    font-family: var(--font-en);
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 300;
    letter-spacing: 0.5px;
    font-style: italic;
}

.brand-logo {
    font-family: var(--font-en);
    font-size: 1.75rem;
    font-weight: 900;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
    position: relative;
    padding: 0 4px;
}

.brand-logo::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ef4444 0%, transparent 100%);
    border-radius: 2px;
}

.hero-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
    line-height: 1.7;
    max-width: 580px;
}

.highlight-blue {
    color: #60a5fa;
    font-weight: 700;
}

.highlight-gold {
    color: #fbbf24;
    font-weight: 700;
}

/* Hero Features */
.hero-features {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9375rem;
    font-weight: 500;
}

.feature-item i {
    color: var(--primary-blue-light);
    font-size: 1.125rem;
}

.hero-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    padding: 16px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 10px;
    background: linear-gradient(135deg, #60a5fa 0%, var(--primary-blue-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
}

.stat-number {
    font-size: 1.625rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
    font-family: var(--font-en);
}

.stat-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 0.8s ease 0.2s both;
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    max-width: 600px;
    width: 100%;
}

.hero-dashboard-image {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    border: 3px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.hero-dashboard-image:hover {
    transform: scale(1.02);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-800);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 8px;
    animation: fadeInScale 0.6s ease both;
    z-index: 10;
}

.floating-badge i {
    color: var(--primary-blue);
    font-size: 1rem;
}

.badge-top-left {
    top: -10px;
    left: -20px;
    animation-delay: 0.8s;
}

.badge-top-right {
    top: -10px;
    right: -20px;
    animation-delay: 1s;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: var(--white);
}

.badge-top-right i {
    color: var(--white);
}

.badge-bottom {
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 1.2s;
    background: linear-gradient(135deg, var(--success-green) 0%, #059669 100%);
    color: var(--white);
}

.badge-bottom i {
    color: var(--white);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Phone Mockup */
.phone-mockup {
    width: 320px;
    height: 640px;
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background: var(--gray-900);
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 32px;
    overflow: hidden;
}

.app-ui {
    padding: 36px 20px 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ui-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--gray-200);
}

.ui-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
}

.ui-level {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-blue);
    background: var(--gray-100);
    padding: 4px 12px;
    border-radius: 50px;
}

.ui-score-card {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    padding: 20px;
    border-radius: var(--radius-lg);
    color: var(--white);
}

.score-main {
    font-size: 0.875rem;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.score-main span {
    font-size: 2rem;
    font-weight: 700;
}

.score-breakdown {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.score-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
}

.score-item strong {
    color: var(--white);
    font-weight: 700;
}

.ui-progress {
    background: var(--gray-50);
    padding: 16px;
    border-radius: var(--radius-md);
}

.progress-label {
    font-size: 0.8125rem;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 50px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-green) 0%, #34d399 100%);
    border-radius: 50px;
    transition: width 1s ease;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--gray-600);
    text-align: right;
}

.ui-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
}

.ui-btn {
    padding: 12px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    text-align: center;
}

.ui-btn-outline {
    padding: 12px;
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    text-align: center;
}

/* ================================
   Section Styles
   ================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
}

.section-subtitle.highlight {
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 1.25rem;
}

/* ================================
   Stats Section (Standalone)
   ================================ */
.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.stats-wrapper {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.stats-section .stat-item {
    text-align: center;
    background: var(--white);
    padding: 32px 24px;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: var(--transition-base);
    flex: 1;
    min-width: 200px;
    max-width: 280px;
}

.stats-section .stat-item:hover {
    background: var(--white);
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-blue-light);
}

.stats-section .stat-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.75rem;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.stats-section .stat-number {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 8px;
    font-family: var(--font-en);
}

.stats-section .stat-label {
    font-size: 0.9375rem;
    color: var(--gray-600);
    font-weight: 600;
}

/* ================================
   Problem Section
   ================================ */
.problem-section {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.problem-card {
    padding: 40px;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 2px solid var(--gray-200);
    transition: var(--transition-base);
}

.problem-card:hover {
    border-color: var(--accent-red);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.problem-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-red-dark) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

.problem-title {
    font-size: 1.375rem;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.problem-text {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.8;
}

.problem-visual {
    margin-top: 60px;
}

.chart-container {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.chart-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 24px;
    text-align: center;
}

#teacherRatioChart {
    max-height: 400px;
}

/* ================================
   Solution Section
   ================================ */
.solution-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.solution-card {
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius-xl);
    border: 2px solid var(--gray-200);
    position: relative;
    transition: var(--transition-base);
}

.solution-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.solution-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    font-weight: 700;
    color: var(--gray-100);
    font-family: var(--font-en);
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

.solution-title {
    font-size: 1.375rem;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.solution-text {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.8;
}

.solution-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.feature-image {
    display: flex;
    justify-content: center;
}

.dashboard-preview {
    width: 100%;
    max-width: 500px;
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--gray-200);
}

.dashboard-header h4 {
    font-size: 1.25rem;
    color: var(--gray-900);
}

.badge-ai {
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
}

.dashboard-chart {
    margin-bottom: 24px;
}

#skillRadarChart {
    max-height: 280px;
}

.dashboard-recommendation {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--success-green-light);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--success-green);
}

.rec-icon {
    font-size: 1.5rem;
    color: var(--success-green);
}

.rec-text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--gray-700);
}

.rec-text strong {
    color: var(--success-green);
    display: block;
    margin-bottom: 4px;
}

.feature-title {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.feature-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 30px;
    line-height: 1.8;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.7;
}

.feature-list i {
    color: var(--success-green);
    font-size: 1.25rem;
    margin-top: 2px;
}

/* Learning Flow Section */
.learning-flow-section {
    margin: 80px 0;
    text-align: center;
}

.flow-title {
    font-size: 2rem;
    color: var(--gray-900);
    margin-bottom: 16px;
    font-weight: 700;
}

.flow-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.flow-image-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.flow-image-container img {
    transition: var(--transition-base);
}

.learning-flow-image {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.flow-image-container img:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* ================================
   Learner Section
   ================================ */
.learner-section {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.benefit-card {
    padding: 40px;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 2px solid var(--gray-200);
    text-align: center;
    transition: var(--transition-base);
}

.benefit-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.benefit-icon-large {
    width: 90px;
    height: 90px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.benefit-title {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.benefit-text {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.8;
}

.learner-voice {
    max-width: 900px;
    margin: 0 auto;
}

.voice-quote {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    padding: 50px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    margin-bottom: 40px;
    position: relative;
}

.quote-icon {
    position: absolute;
    top: 30px;
    left: 30px;
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.15);
}

.quote-text {
    font-size: 1.375rem;
    color: var(--white);
    line-height: 1.8;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.voice-solution {
    text-align: center;
}

.arrow-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 24px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-15px);
    }
    60% {
        transform: translateY(-8px);
    }
}

.solution-box {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    padding: 40px;
    border-radius: var(--radius-2xl);
    color: var(--white);
    box-shadow: var(--shadow-xl);
}

.solution-box h4 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 16px;
}

.solution-box p {
    font-size: 1.125rem;
    line-height: 1.8;
}

/* ================================
   Manager Section
   ================================ */
.manager-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.manager-benefits {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.manager-card {
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius-xl);
    border: 2px solid var(--gray-200);
    transition: var(--transition-base);
}

.manager-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.manager-card.highlight-card {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-color: #fbbf24;
}

.manager-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
}

.manager-title {
    font-size: 1.375rem;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.manager-text {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.8;
}

.free-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent-red);
    color: var(--white);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 700;
    margin-right: 4px;
}

.manager-dashboard {
    margin-bottom: 80px;
}

.dashboard-title {
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.dashboard-subtitle {
    text-align: center;
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 40px;
}

/* 新しい管理者ダッシュボード */
.dashboard-mock-new {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

/* 学習者テーブル */
.learner-table {
    margin-bottom: 30px;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 30px;
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}

.table-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 10px;
}

.table-title i {
    color: var(--primary-blue);
}

.table-actions {
    display: flex;
    gap: 12px;
}

.table-btn {
    padding: 8px 16px;
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.table-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.table-content {
    padding: 0 30px;
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr 1.2fr 1fr 1fr;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-200);
    align-items: center;
}

.table-row-header {
    background: var(--white);
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.learner-row {
    transition: var(--transition-fast);
}

.learner-row:hover {
    background: var(--gray-50);
}

.table-cell {
    display: flex;
    align-items: center;
}

.learner-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.learner-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.learner-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.learner-name {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.9375rem;
}

.learner-country {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.badge-level {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 700;
    text-align: center;
}

.badge-level.n3 {
    background: #dbeafe;
    color: #1e40af;
}

.badge-level.n2 {
    background: #dcfce7;
    color: #15803d;
}

.badge-level.n1 {
    background: #fef3c7;
    color: #a16207;
}

.progress-mini {
    width: 100px;
    height: 8px;
    background: var(--gray-200);
    border-radius: 50px;
    overflow: hidden;
    margin-right: 8px;
}

.progress-bar-mini {
    height: 100%;
    background: linear-gradient(90deg, var(--success-green) 0%, #34d399 100%);
    border-radius: 50px;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 600;
}

.time-change {
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 4px;
}

.time-change.up {
    color: var(--success-green);
}

.time-change.down {
    color: var(--accent-red);
}

.time-ago {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.btn-detail {
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.btn-detail:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.table-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.pagination {
    display: flex;
    gap: 8px;
    align-items: center;
}

.page-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--white);
    border: 1px solid var(--gray-300);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.page-btn:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.page-btn.active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.table-info {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* サマリーカード */
.dashboard-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 30px;
}

.summary-card {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition-base);
}

.summary-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.summary-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.summary-icon.blue {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
}

.summary-icon.green {
    background: linear-gradient(135deg, var(--success-green) 0%, #34d399 100%);
    color: var(--white);
}

.summary-icon.yellow {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: var(--white);
}

.summary-content {
    flex: 1;
}

.summary-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 6px;
}

.summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 8px;
}

.summary-percent {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

.summary-change {
    font-size: 0.875rem;
    font-weight: 600;
}

.summary-change.up {
    color: var(--success-green);
}

.summary-badge {
    font-size: 0.75rem;
    color: var(--gray-600);
    font-weight: 500;
}

.dashboard-mock {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    display: grid;
    grid-template-columns: 250px 1fr;
}

.dashboard-sidebar {
    background: var(--gray-50);
    border-right: 1px solid var(--gray-200);
    padding: 30px 0;
}

.sidebar-item {
    padding: 16px 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9375rem;
    color: var(--gray-600);
    transition: var(--transition-fast);
    cursor: pointer;
}

.sidebar-item:hover {
    background: var(--white);
    color: var(--primary-blue);
}

.sidebar-item.active {
    background: var(--primary-blue);
    color: var(--white);
    font-weight: 600;
    border-left: 4px solid var(--primary-blue-dark);
}

.dashboard-main {
    padding: 40px;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.stat-box {
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    text-align: center;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.dashboard-chart-area {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

#managerChart {
    max-height: 300px;
}

/* Cost Comparison */
.cost-comparison {
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-title {
    font-size: 1.75rem;
    text-align: center;
    margin-bottom: 30px;
    color: var(--gray-900);
}

.comparison-table {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.comparison-row {
    display: grid;
    grid-template-columns: 200px repeat(3, 1fr);
    border-bottom: 1px solid var(--gray-200);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row.header {
    background: var(--gray-800);
    color: var(--white);
}

.comparison-cell {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 1rem;
    border-right: 1px solid var(--gray-200);
}

.comparison-cell:last-child {
    border-right: none;
}

.comparison-cell.label {
    font-weight: 600;
    background: var(--gray-50);
    justify-content: flex-start;
    color: var(--gray-900);
}

.comparison-cell.highlight {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    color: var(--white);
    font-weight: 700;
    font-size: 1.125rem;
}

.comparison-cell.highlight strong {
    color: var(--white);
    font-weight: 800;
}

/* ================================
   Achievements Section
   ================================ */
.achievements-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--white);
}

.achievements-section .section-title {
    color: var(--white);
}

.achievements-section .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.achievements-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 80px;
    padding: 60px 0;
}

.achievement-item {
    text-align: center;
}

.achievement-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-blue-light);
    font-family: var(--font-en);
    margin-bottom: 8px;
}

.achievement-label {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* Testimonials */
.testimonials {
    margin-bottom: 80px;
}

.testimonial-heading {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--white);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-base);
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.testimonial-header {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--white);
}

.testimonial-role {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.testimonial-text {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 16px;
}

.testimonial-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--success-green);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: 50px;
}

/* Institution Voices */
.institution-voices {
    margin-bottom: 60px;
}

.institution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.institution-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: var(--transition-base);
}

.institution-card:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.institution-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue-light) 0%, var(--primary-blue) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.75rem;
    margin-bottom: 20px;
}

.institution-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--white);
}

.institution-text {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
}

/* Partner Logos */
.partner-logos {
    text-align: center;
}

.partner-heading {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--white);
}

.logo-disclaimer {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 40px;
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.logo-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.logo-item i {
    font-size: 2rem;
    color: var(--primary-blue-light);
}

.logo-item span {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

/* ================================
   CTA Section
   ================================ */
.cta-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.cta-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: 2.75rem;
    margin-bottom: 24px;
    line-height: 1.3;
    color: var(--gray-900);
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 60px;
    line-height: 1.8;
}

.cta-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 50px;
}

.cta-card {
    background: var(--white);
    padding: 50px 40px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--gray-200);
    transition: var(--transition-base);
}

.cta-card:hover {
    border-color: var(--primary-blue);
    transform: translateY(-4px);
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.2);
}

.cta-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.cta-card-title {
    font-size: 1.625rem;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.cta-card-text {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 30px;
    line-height: 1.8;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.cta-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
}

.cta-feature-item i {
    color: var(--success-green);
    font-size: 1.5rem;
}

/* ================================
   Modal
   ================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 10000;
    padding: 20px;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-2xl);
    max-width: 600px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 30px 40px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.75rem;
    color: var(--gray-900);
}

.modal-close {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

.modal-body {
    padding: 40px;
}

/* Form Styles */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.required {
    color: var(--accent-red);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--gray-800);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    margin-top: 30px;
}

.form-success {
    text-align: center;
    padding: 40px;
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--success-green-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--success-green);
    font-size: 3rem;
}

.form-success h4 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.form-success p {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 30px;
    line-height: 1.8;
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--gray-900);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-image {
    height: 36px;
    width: auto;
}

.footer-logo .logo-icon {
    width: 44px;
    height: 44px;
}

.footer-logo .logo-text-wrapper {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-logo .logo-tagline {
    color: rgba(255, 255, 255, 0.7);
}

.footer-description {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-blue-light);
    padding-left: 4px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    color: var(--primary-blue-light);
    font-size: 1rem;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ================================
   Responsive Design
   ================================ */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .hero-content {
        gap: 40px;
    }
    
    .solution-grid,
    .benefit-grid,
    .manager-benefits {
        grid-template-columns: 1fr;
    }
    
    .solution-feature {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .testimonial-grid,
    .institution-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dashboard-mock {
        grid-template-columns: 200px 1fr;
    }
}

/* Mobile (< 768px) */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }
    
    html {
        font-size: 14px;
    }
    
    .sp-only {
        display: inline;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .nav {
        display: none;
    }
    
    /* Hero */
    .hero {
        padding: 60px 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero {
        min-height: auto;
        padding: 60px 0;
    }
    
    .hero-top-badges {
        gap: 8px;
    }
    
    .badge-free-compact,
    .badge-ai-compact,
    .badge-users-compact {
        font-size: 0.8125rem;
        padding: 8px 16px;
    }
    
    .subtitle-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .subtitle-text {
        font-size: 1rem;
    }
    
    .brand-logo {
        font-size: 1.75rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 12px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 0.9375rem;
    }
    
    /* Stats Section Mobile */
    .stats-section {
        padding: 60px 0;
    }
    
    .stats-wrapper {
        flex-direction: column;
        gap: 20px;
    }
    
    .stats-section .stat-item {
        max-width: 100%;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta button {
        width: 100%;
    }
    
    .hero-image-wrapper {
        padding: 0 20px;
    }
    
    .floating-badge {
        padding: 8px 16px;
        font-size: 0.75rem;
    }
    
    .badge-top-left {
        top: 10px;
        left: 10px;
    }
    
    .badge-top-right {
        top: 10px;
        right: 10px;
    }
    
    .badge-bottom {
        bottom: 10px;
    }
    
    /* Sections */
    .section-title {
        font-size: 1.875rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .problem-grid,
    .solution-grid,
    .benefit-grid,
    .manager-benefits,
    .cta-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .problem-card,
    .solution-card,
    .benefit-card,
    .manager-card,
    .cta-card {
        padding: 30px 24px;
    }
    
    /* Charts */
    .chart-container {
        padding: 24px;
    }
    
    /* Dashboard */
    .dashboard-mock {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
    
    /* 新しいダッシュボード - モバイル */
    .table-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .table-actions {
        width: 100%;
    }
    
    .table-btn {
        flex: 1;
    }
    
    .table-content {
        overflow-x: auto;
        padding: 0 16px;
    }
    
    .table-row {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 16px;
    }
    
    .table-cell {
        justify-content: space-between;
    }
    
    .table-cell::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--gray-600);
        font-size: 0.8125rem;
    }
    
    .dashboard-summary {
        grid-template-columns: 1fr;
        padding: 20px;
    }
    
    /* Comparison Table */
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .comparison-cell {
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .comparison-cell.label {
        background: var(--gray-100);
        font-weight: 700;
    }
    
    /* Achievements */
    .achievements-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .achievement-number {
        font-size: 3rem;
    }
    
    .achievement-label {
        font-size: 1rem;
    }
    
    /* Logo Grid */
    .logo-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    /* CTA */
    .cta-title {
        font-size: 2rem;
    }
    
    .cta-subtitle {
        font-size: 1rem;
    }
    
    .cta-features {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    /* Modal */
    .modal-content {
        margin: 20px;
    }
    
    .modal-header,
    .modal-body {
        padding: 24px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions button {
        width: 100%;
    }
    
    /* Fixed CTA */
    .fixed-cta {
        bottom: 20px;
        right: 20px;
    }
    
    .fixed-cta button {
        padding: 14px 20px;
        font-size: 0.9375rem;
    }
}

/* Extra Small Mobile (< 480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.625rem;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .achievements-stats {
        grid-template-columns: 1fr;
    }
    
    .logo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}