/* 
画像挿入箇所：
1. ヘッダーロゴ: #header-logo (推奨: 高さ40px、幅は自動調整)
2. ヒーローセクション: #hero-main-visual (推奨: 600px x 400px)
3. サービス概要: #service-overview-image (推奨: 640px x 480px)
4. フッターロゴ: #footer-logo (推奨: 高さ60px、白色版ロゴ)
*/

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #22c55e;
    --success-color: #16a34a;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --text-lighter: #9ca3af;
    --bg-gray: #fefefe;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(37, 99, 235, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(37, 99, 235, 0.1);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, #16a34a 100%);
    --border-radius: 12px;
    --border-radius-lg: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Lucide Icons */
.lucide-icon {
    width: 1.2rem;
    height: 1.2rem;
    display: inline-block;
    vertical-align: middle;
    margin-right: 0.5rem;
}

.lucide-icon-large {
    width: 2rem;
    height: 2rem;
    display: inline-block;
    vertical-align: middle;
    margin-right: 0.75rem;
    color: var(--primary-color);
}

.lucide-icon-feature {
    width: 3rem;
    height: 3rem;
    display: block;
    margin: 0 auto 2rem;
    color: var(--primary-color);
}

.lucide-icon-tech {
    width: 2.5rem;
    height: 2.5rem;
    display: block;
    margin: 0 auto 1rem;
    color: var(--primary-color);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 0.8s ease forwards;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-40px);
    animation: slideInLeft 0.8s ease forwards;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    opacity: 0;
    transform: translateX(40px);
    animation: slideInRight 0.8s ease forwards;
}

@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    animation: scaleIn 0.6s ease forwards;
}

@keyframes scaleIn {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    position: relative;
}

.logo {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav-center {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
    gap: 4rem;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

.btn-white {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--white);
}

.btn-white:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-orange {
    background: #f59e0b;
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-orange:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 8px;
    background: transparent;
    border: none;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 140px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 300" fill="none"><path d="M0,100 C150,200 350,0 500,100 C650,200 850,0 1000,100 L1000,300 L0,300 Z" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: cover;
    opacity: 0.7;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    text-align: left;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

#hero-main-visual {
    width: 100%;
    max-width: 600px;
    height: auto;
    object-fit: cover;
}

.hero-pre-title {
    font-size: clamp(1.1rem, 2.2vw, 1.4rem);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero .subtitle {
    font-size: clamp(1rem, 2vw, 1.4rem);
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 400;
    max-width: 600px;
}

.hero-stats {
    margin: 3rem 0;
}

.hero-stat {
    display: block;
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.hero-stat:last-child {
    margin-bottom: 0;
}

.hero-stat span.icon {
    font-size: 1.3rem;
    margin-right: 0.75rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

/* Problem Section */
.problem {
    padding: 100px 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.section-header p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-light);
    line-height: 1.6;
}

.problem-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 4rem;
}

.problem-side, .solution-side {
    background: var(--white);
    padding: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.problem-side h3 {
    color: var(--danger-color);
    margin-bottom: 2rem;
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    text-align: center;
}

.solution-side h3 {
    color: var(--success-color);
    margin-bottom: 2rem;
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    text-align: center;
}

.problem-list, .solution-list {
    list-style: none;
}

.problem-list li, .solution-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: clamp(0.95rem, 1.5vw, 1.05rem);
    line-height: 1.6;
}

.problem-list li:last-child,
.solution-list li:last-child {
    border-bottom: none;
}

.comparison-arrow {
    font-size: 3rem;
    color: var(--accent-color);
    font-weight: bold;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Service Overview Section */
.service-overview {
    padding: 100px 0;
    background: var(--white);
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    margin-top: 4rem;
}

.overview-image-placeholder {
    width: 100%;
    max-width: 640px;
    height: auto;
    aspect-ratio: 4/3;
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.1rem;
    text-align: center;
    padding: 2rem;
}

.overview-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
}

#service-overview-image {
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: contain;
}

.chat-interface {
    background: #f0f7ff;
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: left;
    font-family: monospace;
    border: 1px solid #e0ebf5;
    margin-top: 2rem;
}

.overview-content h3 {
    font-size: clamp(1.4rem, 2.8vw, 1.8rem);
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.4;
}

.overview-features {
    list-style: none;
    margin-top: 2rem;
}

.overview-features li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    color: var(--text-light);
}

.overview-features li::before {
    content: '🎯';
    font-size: 1.3rem;
}

.user-message {
    color: #2563eb;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.ai-message {
    color: #16a34a;
    margin-bottom: 1rem;
    font-weight: 500;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.feature-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    text-align: left;
    transition: all 0.4s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(13, 41, 133, 0.1), transparent);
    transition: left 0.6s;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 2rem;
    display: block;
    position: relative;
    z-index: 2;
    text-align: center;
}

.feature-card h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.6rem);
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.3;
}

.feature-card p {
    color: var(--text-light);
    font-size: clamp(0.95rem, 1.5vw, 1.05rem);
    line-height: 1.7;
}

/* Use Cases Section */
.use-cases {
    padding: 100px 0;
    background: var(--bg-light);
}

.use-cases-table-wrapper {
    margin-top: 4rem;
    overflow-x: auto;
}

.use-cases-table {
    width: 100%;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border-collapse: collapse;
}

.use-cases-table thead {
    background: var(--gradient-primary);
    color: var(--white);
}

.use-cases-table th {
    padding: 1.5rem;
    text-align: center;
    font-weight: 700;
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
}

.use-cases-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    vertical-align: top;
}

.use-cases-table tbody tr:hover {
    background: var(--bg-light);
    transition: background 0.3s ease;
}

.use-cases-table tbody tr:last-child td {
    border-bottom: none;
}

.industry-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.industry-icon-small {
    font-size: 1.5rem;
}

.use-case-list {
    list-style: none;
}

.use-case-list li {
    padding: 0.25rem 0;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.use-case-list li i {
    margin-right: 0.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--border-color);
    padding: 3rem 2.5rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    position: relative;
    transition: all 0.4s ease;
    box-shadow: var(--shadow);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--white) 0%, var(--bg-gray) 100%);
}

.pricing-card h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.pricing-price {
    font-size: clamp(2.5rem, 4vw, 3rem);
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.pricing-period {
    color: var(--text-light);
    margin-bottom: 2.5rem;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.pricing-features li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li i {
    margin-right: 0.5rem;
    color: var(--success-color);
    flex-shrink: 0;
}

.pricing-button {
    width: 100%;
    padding: 1rem;
    font-size: clamp(0.95rem, 1.5vw, 1.05rem);
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: var(--white);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-list {
    margin-top: 4rem;
}

.faq-item {
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    text-align: left;
    background: var(--white);
    border: none;
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    color: var(--text-dark);
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-answer {
    padding: 0 1.5rem;
    color: var(--text-light);
    line-height: 1.7;
    font-size: clamp(0.9rem, 1.5vw, 1.05rem);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 500px;
}

.faq-icon {
    transition: transform 0.3s ease;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

/* CTA Section */
.final-cta {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 300" fill="none"><path d="M0,100 C150,200 350,0 500,100 C650,200 850,0 1000,100 L1000,300 L0,300 Z" fill="rgba(255,255,255,0.05)"/></svg>');
    background-size: cover;
}

.final-cta-content {
    position: relative;
    z-index: 2;
}

.final-cta h2 {
    font-size: clamp(1.75rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.final-cta .subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: 4rem;
    opacity: 0.9;
}

.cta-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.cta-option {
    background: var(--white);
    backdrop-filter: blur(20px);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.cta-option:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.cta-option h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.cta-features {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.cta-features li {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: clamp(0.9rem, 1.5vw, 1.05rem);
    color: var(--text-light);
}

/* リストアイテムのbefore擬似要素を無効化（アイコン使用のため） */
.overview-features li::before,
.problem-list li::before,
.solution-list li::before,
.cta-features li::before,
.pricing-features li::before,
.use-case-list li::before {
    content: '';
    background: none;
}

.overview-features li i {
    margin-right: 0.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.problem-list li i {
    margin-right: 0.5rem;
    color: var(--danger-color);
    flex-shrink: 0;
    font-size: 1.2rem;
}

.solution-list li i {
    margin-right: 0.5rem;
    color: var(--success-color);
    flex-shrink: 0;
    font-size: 1.2rem;
}

.cta-features li i {
    margin-right: 0.5rem;
    color: var(--success-color);
    flex-shrink: 0;
}

.cta-contact {
    margin-top: 4rem;
    opacity: 0.9;
}

.cta-contact p {
    margin-bottom: 0.5rem;
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    margin-bottom: 1.5rem;
    color: var(--white);
    font-weight: 700;
}

.footer-section p {
    color: #d1d5db;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: clamp(0.85rem, 1.5vw, 0.95rem);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: clamp(0.85rem, 1.5vw, 0.95rem);
}

.footer-section ul li a:hover {
    color: var(--white);
    transform: translateX(5px);
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-icon {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--white);
    transition: all 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-3px);
    background: var(--secondary-color);
    box-shadow: var(--shadow-lg);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

.footer-bottom p {
    font-size: clamp(0.8rem, 1.5vw, 0.95rem);
}

/* Footer Logo */
.footer-logo {
    height: 60px;
    width: auto;
    max-width: 200px;
    margin-bottom: 1.5rem;
    display: block;
}

/* Security Badges */
.security-badges {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.security-badge {
    background: rgba(255,255,255,0.1);
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius);
    font-size: clamp(0.8rem, 1.5vw, 0.9rem);
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.2);
}

/* Animation Delays */
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-600 { animation-delay: 0.6s; }
.delay-800 { animation-delay: 0.8s; }

/* Icon Colors */
.icon-primary { color: var(--primary-color) !important; }
.icon-danger { color: var(--danger-color) !important; }
.icon-success { color: var(--success-color) !important; }

/* Responsive Design - Tablet */
@media (max-width: 1024px) {
    .container, .container-wide {
        padding: 0 20px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        text-align: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .overview-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .problem-comparison {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .comparison-arrow {
        display: none;
    }

    .cta-options {
        grid-template-columns: 1fr;
    }
}

/* Responsive Design - Mobile */
@media (max-width: 768px) {
    .nav-center {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--border-radius) var(--border-radius);
        justify-content: center;
        align-items: center;
        gap: 1rem;
    }

    .nav-center.active {
        display: flex;
    }

    .nav-links {
        gap: 1rem;
    }

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

    .hero {
        padding: 120px 0 80px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    .hero-visual {
        margin-top: 2rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .problem-side,
    .solution-side {
        padding: 2rem 1.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: none;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .use-cases-table {
        min-width: auto;
    }

    .use-cases-table th,
    .use-cases-table td {
        padding: 1rem;
    }

    .cta-option {
        padding: 2rem 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-icons {
        justify-content: center;
    }

    .overview-content h3 {
        font-size: 1.4rem;
    }
}

/* Responsive Design - Small Mobile */
@media (max-width: 480px) {
    .container,
    .container-wide {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-stat {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }

    .btn {
        padding: 0.65rem 1.25rem;
        font-size: 0.9rem;
    }

    .btn-large {
        padding: 0.85rem 1.5rem;
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .section-header p {
        font-size: 0.95rem;
    }

    .problem-side h3,
    .solution-side h3 {
        font-size: 1.25rem;
    }

    .problem-list li,
    .solution-list li {
        font-size: 0.9rem;
        padding: 0.75rem 0;
    }

    .overview-content h3 {
        font-size: 1.3rem;
    }

    .feature-card h3 {
        font-size: 1.3rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 1rem 0.75rem;
        font-size: 0.85rem;
    }

    .pricing-card {
        padding: 2rem 1.5rem;
    }

    .pricing-price {
        font-size: 2.25rem;
    }

    .faq-question {
        padding: 1.25rem 1rem;
        font-size: 0.95rem;
    }

    .faq-answer {
        font-size: 0.9rem;
    }

    .final-cta h2 {
        font-size: 1.5rem;
    }

    .cta-contact p {
        font-size: 0.95rem;
    }
}