/* ==========================================
   SATURN LAB - CSS Variables & Reset
   ========================================== */

:root {
    /* Colors */
    --color-primary: #D4AF37;
    --color-primary-light: #E5C158;
    --color-dark: #1A2332;
    --color-dark-secondary: #2C3E50;
    --color-dark-tertiary: #34495E;
    --color-white: #FFFFFF;
    --color-text-light: rgba(255, 255, 255, 0.8);
    --color-text-lighter: rgba(255, 255, 255, 0.7);
    --color-text-lightest: rgba(255, 255, 255, 0.6);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
    --spacing-2xl: 100px;

    /* Typography */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 28px;
    --font-size-4xl: 40px;
    --font-size-5xl: 48px;

    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.2s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.25);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
    line-height: 1.6;
    font-size: var(--font-size-base);
    overflow-x: hidden;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   Typography
   ========================================== */

.section-title {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    color: var(--color-white);
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-xl);
    color: var(--color-text-lighter);
    margin-bottom: var(--spacing-xl);
}

/* ==========================================
   Navigation
   ========================================== */

.navbar {
    background: rgba(26, 35, 50, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px var(--spacing-md);
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 1px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    transition: var(--transition-base);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-links a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
    position: relative;
}

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

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

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

.nav-login-btn {
    background: var(--color-primary) !important;
    color: var(--color-white) !important;
    padding: 8px 20px !important;
    border-radius: var(--radius-sm) !important;
    transition: var(--transition-base) !important;
}

.nav-login-btn:hover {
    background: var(--color-primary-light) !important;
    transform: translateY(-2px) !important;
}

.nav-login-btn::after {
    display: none !important;
}

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

.btn {
    padding: 16px 32px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-base);
    display: inline-block;
    cursor: pointer;
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

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

.btn-large {
    padding: 20px 48px;
    font-size: var(--font-size-lg);
}

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

.hero {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
    color: var(--color-white);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.hero-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(212, 175, 55, 0.1) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    font-size: var(--font-size-5xl);
    line-height: 1.3;
    margin-bottom: 30px;
    font-weight: 700;
}

.hero-question {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    margin-bottom: 10px;
    font-weight: 600;
}

.hero-answer {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.hero-note {
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

/* ==========================================
   Problem Section
   ========================================== */

.problem-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.problem-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: var(--spacing-xl);
}

.problem-card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    border-left: 4px solid var(--color-primary);
    transition: var(--transition-base);
}

.problem-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.problem-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--color-primary);
}

.problem-card p {
    color: var(--color-text-light);
    line-height: 1.8;
}

.problem-highlight {
    background: rgba(212, 175, 55, 0.2);
    color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: var(--font-size-xl);
    line-height: 1.8;
}

.problem-highlight strong {
    color: var(--color-primary);
}

/* ==========================================
   Solution Section
   ========================================== */

.solution-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.solution-card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
    text-align: center;
    transition: var(--transition-base);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-dark);
    border-radius: var(--radius-full);
    line-height: 60px;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: 20px;
}

.solution-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 15px;
    color: var(--color-primary);
}

.solution-question {
    margin: 15px 0;
    color: var(--color-text-light);
}

.feature-list {
    list-style: none;
    text-align: left;
    margin-top: 15px;
}

.feature-list li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--color-text-light);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.solution-highlight {
    text-align: center;
    margin-top: 50px;
    padding: 30px;
    background: rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
}

.solution-highlight p {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    font-weight: 600;
    line-height: 1.8;
}

.solution-highlight span {
    color: var(--color-white);
    font-size: var(--font-size-base);
    font-weight: 400;
}

/* ==========================================
   Tier Section
   ========================================== */

.tier-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.tier-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: var(--spacing-xl);
}

.tier-card {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
    position: relative;
}

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

.tier-featured {
    border-color: var(--color-primary);
    background: rgba(212, 175, 55, 0.15);
}

.tier-badge {
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.tier-badge-popular {
    position: absolute;
    top: -15px;
    right: 30px;
    background: var(--color-primary);
    color: var(--color-dark);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.tier-title {
    font-size: var(--font-size-2xl);
    color: var(--color-white);
    margin-bottom: 30px;
}

.tier-features {
    list-style: none;
    margin: 30px 0;
}

.tier-features li {
    padding: 12px 0;
    padding-left: 30px;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-light);
}

.tier-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.tier-price {
    text-align: center;
    margin: 20px 0;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
}

.tier-price strong {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

/* ==========================================
   Tier Deep Dive
   ========================================== */

.tier-deep-dive {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.tier-comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.tier-detail-card {
    background: linear-gradient(135deg, var(--color-dark-secondary) 0%, var(--color-dark-tertiary) 100%);
    padding: 50px;
    border-radius: var(--radius-lg);
    color: var(--color-white);
    position: relative;
}

.tier-detail-featured {
    border: 3px solid var(--color-primary);
}

.tier-number {
    position: absolute;
    top: -30px;
    left: 40px;
    width: 70px;
    height: 70px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--color-white);
}

.tier-detail-card h3 {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: 10px;
    margin-top: 30px;
}

.tier-desc {
    font-size: var(--font-size-base);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
}

.detail-box {
    background: rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
    margin-bottom: 20px;
}

.detail-box-featured {
    background: rgba(212, 175, 55, 0.2);
}

.detail-header {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.detail-icon {
    font-size: var(--font-size-xl);
    margin-right: 10px;
}

.detail-header strong {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
}

.detail-box p {
    opacity: 0.9;
    line-height: 1.8;
}

.small-text {
    font-size: var(--font-size-sm);
}

.tier-highlight {
    margin-top: 50px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 40px 60px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.highlight-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 15px;
}

.tier-highlight p {
    font-size: var(--font-size-lg);
    color: var(--color-white);
    line-height: 1.8;
    font-weight: 500;
}

/* ==========================================
   Steps Section
   ========================================== */

.steps-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: var(--spacing-xl);
}

.step-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
}

.step-card:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.step-header {
    font-size: var(--font-size-base);
    color: var(--color-primary);
    margin-bottom: 10px;
    font-weight: 600;
}

.step-card h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 5px;
}

.step-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--color-primary);
}

.step-card ul {
    list-style: none;
}

.step-card li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    opacity: 0.9;
}

.step-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.step-note {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.steps-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    font-weight: 600;
}

/* ==========================================
   Diagnostic Section
   ========================================== */

.diagnostic-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.diagnostic-tier-header {
    margin: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}

.diagnostic-tier-header h3 {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: 20px;
}

.diagnostic-tier-header p {
    color: var(--color-text-lighter);
    font-size: var(--font-size-base);
}

.diagnostic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.diagnostic-grid-tier2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.diagnostic-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: var(--radius-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-left: 4px solid var(--color-primary);
    transition: var(--transition-base);
}

.diagnostic-card:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.diagnostic-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.diagnostic-question {
    margin: 20px 0;
    font-size: var(--font-size-base);
    color: var(--color-white);
    font-weight: 600;
}

.diagnostic-uses {
    list-style: none;
    margin-top: 15px;
}

.diagnostic-uses li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--color-text-lighter);
    font-size: var(--font-size-sm);
}

.diagnostic-uses li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.tech-highlight {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
    color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.tech-highlight strong {
    color: var(--color-primary);
}

/* ==========================================
   Advisory Section
   ========================================== */

.advisory-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.advisory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.advisory-card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
    transition: var(--transition-base);
}

.advisory-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.advisory-timing {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    margin-bottom: 10px;
}

.advisory-card h3 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: 30px;
}

.advisory-card p {
    color: var(--color-white);
    line-height: 1.8;
}

.advisory-highlight {
    margin-top: 50px;
    text-align: center;
    padding: 30px;
    background: rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-md);
}

.advisory-highlight p {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    line-height: 1.8;
    font-weight: 600;
}

.advisory-highlight span {
    color: var(--color-white);
    font-size: var(--font-size-base);
    font-weight: 400;
}

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

.pricing-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: var(--spacing-xl);
}

.pricing-card {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-base);
    position: relative;
}

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

.pricing-popular {
    border-color: var(--color-primary);
    background: rgba(212, 175, 55, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-dark);
    padding: 8px 30px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.pricing-plan {
    font-size: var(--font-size-base);
    color: var(--color-text-lighter);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.pricing-price {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-white);
    margin: 20px 0;
}

.pricing-period {
    font-size: var(--font-size-base);
    color: var(--color-text-lighter);
    margin-bottom: 30px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin: 30px 0;
}

.pricing-features li {
    padding: 12px 0;
    padding-left: 30px;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-light);
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.pricing-type {
    margin: 20px 0;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
}

.pricing-type strong {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.pricing-card .btn {
    margin-top: 20px;
    width: 100%;
}

/* ==========================================
   Comparison Table
   ========================================== */

.comparison-table {
    margin-top: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-left: 4px solid var(--color-primary);
}

.comparison-table h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 30px;
    color: var(--color-white);
    text-align: center;
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
}

thead tr {
    background: rgba(255, 255, 255, 0.05);
}

th {
    padding: 20px;
    text-align: center;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    font-weight: 600;
}

th.highlight-col {
    background: rgba(212, 175, 55, 0.15);
    border-bottom-color: var(--color-primary);
}

th.highlight-col strong {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

td {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-light);
}

td:first-child {
    font-weight: 600;
    color: var(--color-white);
}

td.highlight-col {
    background: rgba(212, 175, 55, 0.15);
    text-align: center;
}

td.highlight-col strong {
    color: var(--color-primary);
}

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

.cta-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-secondary) 100%);
    color: var(--color-white);
    text-align: center;
}

.cta-section h2 {
    font-size: var(--font-size-4xl);
    margin-bottom: 20px;
}

.cta-section p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

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

.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-brand h3 {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: 15px;
}

.footer-brand p {
    opacity: 0.8;
    line-height: 1.8;
}

.footer-contact {
    margin-top: 20px;
    color: var(--color-white);
}

.footer-contact a {
    color: var(--color-white);
    text-decoration: none;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: var(--color-primary);
}

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

.footer-section a {
    color: var(--color-text-light);
    text-decoration: none;
    line-height: 2;
    transition: var(--transition-base);
}

.footer-section a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
}

/* ==========================================
   Animations
   ========================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

.slide-up {
    opacity: 0;
    animation: slideUp 0.6s ease-out forwards;
}

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

@media (max-width: 1024px) {
    .tier-comparison-grid {
        grid-template-columns: 1fr;
    }

    .diagnostic-grid-tier2 {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 32px;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

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

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

    .diagnostic-grid,
    .diagnostic-grid-tier2 {
        grid-template-columns: 1fr;
    }

    .tier-highlight {
        padding: 30px 20px;
    }

    .tier-comparison-grid {
        grid-template-columns: 1fr;
    }

    .tier-detail-card {
        padding: 30px 20px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 24px;
    }

    .section-title {
        font-size: 24px;
    }

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