/* ==========================================================================
   Lyngo - Light Theme with Dark Accent Sections
   Brand Colors: Navy Blue (#1a365d), Coral Red (#f87171)
   ========================================================================== */

/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
    /* Brand Colors from Logo */
    --color-navy: #1a365d;
    --color-navy-light: #234876;
    --color-navy-dark: #0f2341;
    --color-coral: #f87171;
    --color-coral-light: #fca5a5;
    --color-coral-dark: #ef4444;

    /* Light Theme Palette */
    --color-bg: #ffffff;
    --color-bg-subtle: #f8fafc;
    --color-bg-muted: #f1f5f9;

    /* Text Colors */
    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;

    /* Border Colors */
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;

    /* Status Colors */
    --color-success: #10b981;
    --color-error: #ef4444;

    /* Typography */
    --font-display: 'Source Serif 4', serif;
    --font-body: 'DM Sans', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

::selection {
    background: var(--color-coral);
    color: white;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-body);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }

p {
    line-height: 1.7;
    color: var(--color-text-secondary);
}

em {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--color-coral);
}

.before-word {
    font-family: Arial, sans-serif;
}

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

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    background: var(--color-coral);
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-primary:hover {
    background: var(--color-coral-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px rgba(248, 113, 113, 0.5);
}

.btn-primary svg {
    transition: transform var(--transition-base);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    background: transparent;
    color: var(--color-text);
    font-weight: 600;
    font-size: 0.95rem;
    border: 2px solid var(--color-border);
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition-base);
}

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

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

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: var(--transition-base);
}

.header.scrolled {
    border-bottom-color: var(--color-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-coral);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-text);
}

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

.nav-actions .btn-primary {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition-base);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    padding: 10rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero-bg-shape {
    position: absolute;
    top: 0;
    right: -20%;
    width: 60%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-subtle) 0%, var(--color-bg-muted) 100%);
    border-radius: 0 0 0 50%;
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: rgba(248, 113, 113, 0.1);
    color: var(--color-coral-dark);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: var(--spacing-md);
}

.hero-badge svg {
    color: var(--color-coral);
}

.hero-title {
    margin-bottom: var(--spacing-md);
    line-height: 1.15;
}

.hero-title span {
    color: var(--color-text-muted);
    font-weight: 400;
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    max-width: 520px;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.cta-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Score Card in Hero */
.hero-visual {
    display: flex;
    justify-content: center;
}

.score-card {
    background: white;
    border-radius: var(--border-radius-xl);
    box-shadow:
        0 4px 6px -1px rgba(0, 0, 0, 0.05),
        0 10px 15px -3px rgba(0, 0, 0, 0.08),
        0 20px 40px -10px rgba(26, 54, 93, 0.15);
    padding: var(--spacing-lg);
    width: 100%;
    max-width: 380px;
    border: 1px solid var(--color-border-light);
}

.score-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.score-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.score-level {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-navy);
    background: rgba(26, 54, 93, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
}

.score-criteria {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.criteria-item {
    display: grid;
    grid-template-columns: 100px 1fr 40px;
    gap: var(--spacing-sm);
    align-items: center;
}

.criteria-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.criteria-bar {
    height: 8px;
    background: var(--color-bg-muted);
    border-radius: 100px;
    overflow: hidden;
}

.criteria-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
    border-radius: 100px;
    transition: width 1s ease;
}

.criteria-score {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-navy);
    text-align: right;
}

.score-footer {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.score-date {
    color: var(--color-success);
    font-weight: 600;
}

/* ==========================================================================
   Trust Bar
   ========================================================================== */
.trust-bar {
    padding: var(--spacing-md) 0;
    background: var(--color-bg-subtle);
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border-light);
}

.trust-text {
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.trust-text strong {
    color: var(--color-navy);
}

/* ==========================================================================
   Section Styling
   ========================================================================== */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.section-header.light {
    color: white;
}

.section-header.light .section-title {
    color: white;
}

.section-header.light .section-description {
    color: rgba(255, 255, 255, 0.8);
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(248, 113, 113, 0.1);
    color: var(--color-coral);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 100px;
    margin-bottom: var(--spacing-sm);
}

.section-tag.light {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-coral-light);
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

/* ==========================================================================
   Pain Points Section
   ========================================================================== */
.pain-section {
    padding: var(--spacing-3xl) 0;
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.pain-card {
    padding: var(--spacing-lg);
    background: var(--color-bg-subtle);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border-light);
    transition: var(--transition-base);
}

.pain-card:hover {
    border-color: var(--color-border);
    transform: translateY(-4px);
}

.pain-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(248, 113, 113, 0.1);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

.pain-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-coral);
}

.pain-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.pain-card p {
    font-size: 0.95rem;
}

/* ==========================================================================
   How It Works Section (Dark)
   ========================================================================== */
.how-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
    color: white;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.step-card {
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-base);
}

.step-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
}

.step-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-coral);
    opacity: 0.5;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.step-num-text {
    font-family: Arial, sans-serif;
}

.step-card h3 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.step-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features-section {
    padding: var(--spacing-3xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-xl);
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-coral);
    box-shadow: 0 10px 40px -10px rgba(248, 113, 113, 0.2);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26, 54, 93, 0.05);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-navy);
}

.feature-title {
    margin-bottom: var(--spacing-xs);
}

.feature-description {
    font-size: 0.95rem;
}

/* ==========================================================================
   Proof Section
   ========================================================================== */
.proof-section {
    padding: var(--spacing-2xl) 0;
}

.proof-card {
    background: var(--color-bg-subtle);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
    border-left: 4px solid var(--color-coral);
}

.proof-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-coral);
    margin-bottom: var(--spacing-sm);
}

.proof-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    max-width: 800px;
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-subtle);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    transition: var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: var(--color-coral);
    box-shadow: 0 10px 40px -10px rgba(248, 113, 113, 0.2);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-coral);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.375rem 1rem;
    border-radius: 100px;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.pricing-header h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.pricing-amount {
    margin-bottom: var(--spacing-xs);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.pricing-amount .price-original {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    text-decoration: line-through;
    margin-bottom: 0.25rem;
}

.pricing-amount .price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text);
}

.pricing-amount .period {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.pricing-amount .discount-badge {
    display: inline-block;
    background: var(--color-coral);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.625rem;
    border-radius: 4px;
    margin-top: 0.25rem;
}

.pricing-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.pricing-features svg {
    width: 18px;
    height: 18px;
    color: var(--color-success);
    flex-shrink: 0;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
    padding: var(--spacing-3xl) 0;
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-text-muted);
}

.faq-item.active {
    border-color: var(--color-coral);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-question svg {
    width: 20px;
    height: 20px;
    color: var(--color-coral);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

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

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    font-size: 0.95rem;
}

/* ==========================================================================
   CTA Section (Dark)
   ========================================================================== */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.cta-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.store-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    color: white;
    transition: var(--transition-base);
}

.store-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.store-btn svg {
    width: 28px;
    height: 28px;
}

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

.store-text span {
    display: block;
    font-size: 0.7rem;
    opacity: 0.8;
}

.store-text strong {
    font-size: 1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background: var(--color-bg-subtle);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo img {
    height: 40px;
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.footer-column a {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.footer-column a:hover {
    color: var(--color-coral);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }

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

    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 2;
    }

    .hero-cta {
        align-items: center;
    }

    .hero-description {
        max-width: 100%;
    }

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

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

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

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

@media (max-width: 768px) {
    .hero-section {
        padding: 8rem 0 4rem;
    }

    .hero-bg-shape {
        display: none;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .store-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }
}