/* ========================================
   OpenClaw Cost Calculator - Styles
   ======================================== */

/* CSS Variables */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #22c55e;
    --accent: #f59e0b;
    --danger: #ef4444;
    --dark: #0f172a;
    --dark-lighter: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f1f5f9;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}

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

/* ========================================
   Header
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-links .nav-cta {
    background: var(--gradient-primary);
    color: var(--white) !important;
}

.nav-links .nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    background: var(--gradient-dark);
    color: var(--white);
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-bottom: 48px;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-light);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-light);
}

.hero-ctas {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

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

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

.btn-sm {
    padding: 10px 20px;
    font-size: 0.875rem;
}

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

.btn-full {
    width: 100%;
}

/* ========================================
   Warning Banner
   ======================================== */

.warning-banner {
    background: var(--light);
    padding: 40px 0;
}

.warning-box {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 1px solid #f59e0b;
    border-radius: var(--radius);
    padding: 24px;
}

.warning-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.warning-content {
    color: #92400e;
}

.warning-content a {
    color: #b45309;
    font-weight: 600;
}

/* ========================================
   Section Headers
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-badge {
    display: inline-block;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--dark);
}

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

/* ========================================
   Calculator Section
   ======================================== */

.calculator-section {
    padding: 100px 0;
    background: var(--white);
}

.calculator-container {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 48px;
    align-items: start;
}

.calculator-inputs {
    background: var(--light);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.calc-group {
    margin-bottom: 32px;
}

.calc-group:last-child {
    margin-bottom: 0;
}

.calc-group h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--dark);
}

.input-row {
    margin-bottom: 20px;
}

.input-row label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--dark);
}

.input-row select,
.input-row input[type="number"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background: var(--white);
    transition: var(--transition);
}

.input-row select:focus,
.input-row input:focus {
    outline: none;
    border-color: var(--primary);
}

.input-row input[type="range"] {
    width: calc(100% - 80px);
    margin-right: 12px;
}

.range-value {
    display: inline-block;
    min-width: 60px;
    font-weight: 700;
    color: var(--primary);
}

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

.checkbox-row input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
    cursor: pointer;
}

.checkbox-row label {
    cursor: pointer;
    color: var(--gray);
}

/* Calculator Results */

.calculator-results {
    position: sticky;
    top: 100px;
}

.result-card {
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    margin-bottom: 24px;
}

.result-card.highlight {
    box-shadow: var(--shadow-xl);
}

.result-label {
    display: block;
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 8px;
}

.result-value {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 8px;
}

.result-sublabel {
    font-size: 0.875rem;
    opacity: 0.8;
}

.result-breakdown {
    background: var(--white);
    border: 2px solid var(--light);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--light);
}

.result-item:last-child {
    border-bottom: none;
}

.result-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.result-dot.hosting { background: #22c55e; }
.result-dot.api { background: #6366f1; }
.result-dot.extras { background: #f59e0b; }

.result-item-label {
    flex: 1;
    color: var(--gray);
}

.result-item-value {
    font-weight: 700;
    color: var(--dark);
}

.savings-tip {
    background: #dcfce7;
    border: 1px solid #86efac;
    border-radius: var(--radius-sm);
    padding: 16px;
    font-size: 0.875rem;
    color: #166534;
    margin-bottom: 24px;
}

/* ========================================
   Overview Section
   ======================================== */

.overview-section {
    padding: 100px 0;
    background: var(--light);
}

.cost-layers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.layer-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.layer-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.layer-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.layer-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.layer-cost {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 16px;
}

.layer-cost span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray);
}

.layer-card.free .layer-cost { color: var(--secondary); }
.layer-card.hosting .layer-cost { color: #f59e0b; }
.layer-card.api .layer-cost { color: var(--primary); }

.layer-card p {
    color: var(--gray);
    margin-bottom: 20px;
}

.layer-card ul {
    list-style: none;
    text-align: left;
}

.layer-card li {
    padding: 8px 0;
    border-bottom: 1px solid var(--light);
    font-size: 0.875rem;
}

.layer-card li:last-child {
    border-bottom: none;
}

/* ========================================
   Hosting Section
   ======================================== */

.hosting-section {
    padding: 100px 0;
    background: var(--white);
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

.comparison-table th {
    background: var(--dark);
    color: var(--white);
    padding: 20px;
    text-align: left;
    font-weight: 600;
}

.comparison-table td {
    padding: 20px;
    border-bottom: 1px solid var(--light);
}

.comparison-table tr:hover {
    background: rgba(99, 102, 241, 0.03);
}

.comparison-table tr.recommended {
    background: rgba(99, 102, 241, 0.05);
    border-left: 4px solid var(--primary);
}

.comparison-table .tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 8px;
}

.recommended-tag {
    background: var(--primary);
    color: var(--white);
}

.price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
}

.price.free {
    color: var(--secondary);
}

.btn-table {
    display: inline-block;
    padding: 10px 20px;
    background: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    transition: var(--transition);
}

.btn-table:hover {
    background: var(--primary-dark);
}

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

.hosting-cta {
    text-align: center;
    margin-top: 40px;
    padding: 24px;
    background: var(--light);
    border-radius: var(--radius);
}

.hosting-cta a {
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   Pricing Section
   ======================================== */

.pricing-section {
    padding: 100px 0;
    background: var(--light);
}

.model-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.model-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.model-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.model-card.recommended {
    border: 2px solid var(--primary);
    transform: scale(1.05);
}

.model-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.model-header h3 {
    font-size: 1rem;
    font-weight: 700;
}

.model-badge {
    padding: 4px 10px;
    border-radius: 100px;
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
}

.budget-badge { background: #dcfce7; color: #166534; }
.recommended-badge { background: var(--primary); color: var(--white); }
.premium-badge { background: #fef3c7; color: #92400e; }
.enterprise-badge { background: #fee2e2; color: #991b1b; }

.model-pricing {
    margin-bottom: 16px;
}

.price-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--light);
    font-size: 0.875rem;
}

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

.model-desc {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 20px;
}

.pricing-note {
    margin-top: 40px;
    padding: 20px;
    background: #fef3c7;
    border-radius: var(--radius);
    text-align: center;
    color: #92400e;
}

.pricing-note a {
    color: #b45309;
    font-weight: 600;
}

/* ========================================
   Savings Section
   ======================================== */

.savings-section {
    padding: 100px 0;
    background: var(--white);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tip-card {
    background: var(--light);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    transition: var(--transition);
}

.tip-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
}

.tip-number {
    position: absolute;
    top: -12px;
    left: 24px;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.tip-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 20px 0 12px;
}

.tip-card p {
    color: var(--gray);
    font-size: 0.9375rem;
    margin-bottom: 16px;
}

.tip-savings {
    display: inline-block;
    background: #dcfce7;
    color: #166534;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
}

.savings-cta {
    text-align: center;
    margin-top: 48px;
}

/* ========================================
   Premium Section
   ======================================== */

.premium-section {
    padding: 100px 0;
    background: var(--gradient-dark);
    color: var(--white);
}

.premium-card {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 64px;
    align-items: center;
}

.premium-badge {
    display: inline-block;
    background: var(--accent);
    color: var(--dark);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.premium-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 24px;
}

.premium-content > p {
    font-size: 1.125rem;
    color: var(--gray-light);
    margin-bottom: 24px;
}

.premium-features {
    list-style: none;
    margin-bottom: 32px;
}

.premium-features li {
    padding: 12px 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.premium-pricing {
    margin-bottom: 24px;
}

.old-price {
    font-size: 1.5rem;
    color: var(--gray-light);
    text-decoration: line-through;
    margin-right: 12px;
}

.current-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--secondary);
}

.price-note {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-light);
    margin-top: 4px;
}

.premium-guarantee {
    margin-top: 16px;
    font-size: 0.875rem;
    color: var(--gray-light);
}

/* Report Mockup */
.premium-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.report-mockup {
    background: var(--white);
    border-radius: var(--radius-lg);
    width: 300px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transform: rotate(5deg);
}

.mockup-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 16px;
    font-weight: 700;
}

.mockup-content {
    padding: 20px;
}

.mockup-line {
    height: 12px;
    background: var(--light);
    border-radius: 4px;
    margin-bottom: 12px;
}

.mockup-line.short {
    width: 60%;
}

.mockup-chart {
    height: 80px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(99, 102, 241, 0.3) 100%);
    border-radius: 4px;
    margin: 20px 0;
}

/* ========================================
   FAQ Section
   ======================================== */

.faq-section {
    padding: 100px 0;
    background: var(--light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(99, 102, 241, 0.03);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--gray);
    line-height: 1.7;
}

.faq-answer a {
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   Services Section
   ======================================== */

.services-section {
    padding: 100px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--light);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-card.featured {
    background: var(--gradient-primary);
    color: var(--white);
    transform: scale(1.05);
}

.service-card.featured .service-price {
    color: var(--white);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--gray);
    margin-bottom: 20px;
}

.service-card.featured p {
    color: rgba(255, 255, 255, 0.9);
}

.service-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 20px;
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    padding: 100px 0;
    background: var(--gradient-primary);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.cta-buttons .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 64px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--gray-light);
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--white);
    font-size: 1.25rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--white);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    text-align: center;
    color: var(--gray-light);
    font-size: 0.875rem;
}

.footer-bottom p {
    margin-bottom: 8px;
}

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

@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .calculator-container {
        grid-template-columns: 1fr;
    }
    
    .calculator-results {
        position: static;
    }
    
    .cost-layers {
        grid-template-columns: 1fr;
    }
    
    .model-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .model-card.recommended {
        transform: none;
    }
    
    .tips-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .premium-card {
        grid-template-columns: 1fr;
    }
    
    .premium-visual {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card.featured {
        transform: none;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .hero-ctas {
        flex-direction: column;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .model-cards {
        grid-template-columns: 1fr;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .comparison-table-wrapper {
        font-size: 0.875rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .result-value {
        font-size: 2.5rem;
    }
    
    .premium-content h2 {
        font-size: 1.75rem;
    }
    
    .current-price {
        font-size: 2.5rem;
    }
}