/* ===== CSS Variables / Design Tokens ===== */
:root {
    /* Colors - Clean & Modern */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --accent: #0ea5e9;
    --accent-light: #38bdf8;

    /* Background Colors - Light & Clean */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-glass: rgba(255, 255, 255, 0.9);

    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    /* Success/Error */
    --success: #22c55e;
    --error: #ef4444;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 4px 40px rgba(99, 102, 241, 0.12);
    --shadow-glow-lg: 0 8px 60px rgba(99, 102, 241, 0.18);

    /* Borders */
    --border-subtle: 1px solid #e2e8f0;
    --border-card: 1px solid #e2e8f0;
    --border-accent: 1px solid rgba(99, 102, 241, 0.3);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Typography */
    --font-display: 'Outfit', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
}

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

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

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.9375rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    text-align: center;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 16px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 24px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: var(--border-card);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: #cbd5e1;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
}

.btn-arrow {
    transition: transform var(--transition-fast);
    font-size: 1.1em;
}

.btn:hover .btn-arrow {
    transform: translateX(3px);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: transparent;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: var(--border-subtle);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.25rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-light);
    transition: width var(--transition-normal);
}

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

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

.nav-cta {
    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: 5px;
}

.mobile-menu-btn span {
    width: 22px;
    height: 1.5px;
    background: var(--text-primary);
    transition: var(--transition-normal);
    border-radius: 1px;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    padding: calc(100px + var(--space-2xl)) 0 var(--space-3xl);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center top, rgba(99, 102, 241, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-bg-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.floating-star {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(99, 102, 241, 0.3);
    border-radius: 50%;
    left: var(--x);
    top: var(--y);
    animation: twinkle 4s ease-in-out infinite;
    animation-delay: var(--delay);
}

@keyframes twinkle {

    0%,
    100% {
        opacity: 0.2;
    }

    50% {
        opacity: 0.6;
    }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

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

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-glass);
    border: var(--border-subtle);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.badge-icon {
    font-size: 0.875rem;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.75rem, 5vw, 4rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 480px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.hero-guarantee {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.guarantee-icon {
    color: var(--success);
    font-weight: 600;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: var(--border-subtle);
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
}

/* Hero Image */
.hero-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-glow {
    position: absolute;
    width: 350px;
    height: 350px;
    background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(40px);
}

.product-img {
    position: relative;
    z-index: 2;
    max-width: 380px;
    animation: float 8s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

.floating-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: var(--border-subtle);
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 500;
    z-index: 3;
}

.floating-badge-1 {
    top: 20%;
    left: -10%;
}

.floating-badge-2 {
    bottom: 25%;
    right: -5%;
}

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

.hero-wave svg {
    width: 100%;
    height: 80px;
}

/* ===== Trust Section ===== */
.trust-section {
    background: var(--bg-secondary);
    padding: var(--space-xl) 0;
    border-top: var(--border-subtle);
    border-bottom: var(--border-subtle);
}

.trust-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-xl);
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.trust-icon {
    font-size: 1.125rem;
}

/* ===== Section Styles ===== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.section-label {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Problem Section ===== */
.problem-section {
    background: var(--bg-secondary);
    padding: var(--space-3xl) 0;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.problem-card {
    padding: var(--space-lg);
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.problem-card:hover {
    background: var(--bg-card-hover);
    border-color: #cbd5e1;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.problem-icon {
    font-size: 2.25rem;
    margin-bottom: var(--space-md);
}

.problem-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.problem-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.feature-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-icon-wrapper {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.feature-icon {
    font-size: 1.375rem;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.7;
}

/* ===== How It Works Section ===== */
.how-it-works-section {
    background: var(--bg-secondary);
    padding: var(--space-3xl) 0;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.step-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.step-card:hover {
    background: var(--bg-card-hover);
}

.step-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin: 0 auto var(--space-md);
}

.step-content h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

.step-visual {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin: var(--space-md) auto 0;
}

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

.step-connector {
    display: none;
}

/* ===== Comparison Section ===== */
.comparison-section {
    background: var(--bg-primary);
    padding: var(--space-3xl) 0;
}

.comparison-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    max-width: 800px;
    margin: 0 auto;
}

.comparison-card {
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    border: var(--border-subtle);
}

.comparison-before {
    background: rgba(239, 68, 68, 0.03);
    border-color: rgba(239, 68, 68, 0.15);
}

.comparison-after {
    background: rgba(34, 197, 94, 0.03);
    border-color: rgba(34, 197, 94, 0.15);
}

.comparison-header {
    margin-bottom: var(--space-lg);
}

.comparison-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.comparison-badge.before {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
}

.comparison-badge.after {
    background: rgba(34, 197, 94, 0.1);
    color: #4ade80;
}

.comparison-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.comparison-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.comparison-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.icon-cross {
    color: #f87171;
    font-weight: 600;
}

.icon-check {
    color: #4ade80;
    font-weight: 600;
}

.comparison-divider {
    display: none;
}

/* ===== Testimonials Section ===== */
.testimonials-section {
    background: var(--bg-secondary);
    padding: var(--space-3xl) 0;
}

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

.testimonial-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.testimonial-card:hover {
    border-color: #cbd5e1;
    box-shadow: var(--shadow-md);
}

.testimonial-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(14, 165, 233, 0.03) 100%);
    border-color: rgba(99, 102, 241, 0.15);
}

.testimonial-rating {
    color: #fbbf24;
    font-size: 0.875rem;
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.testimonial-card.featured .testimonial-text {
    font-size: 1.0625rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.author-avatar {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: white;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.author-name {
    font-weight: 500;
    font-size: 0.875rem;
}

.author-verified {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Social Proof Section ===== */
.social-proof-section {
    background: var(--bg-primary);
    padding: var(--space-2xl) 0;
    border-top: var(--border-subtle);
    border-bottom: var(--border-subtle);
}

.social-proof-content {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
}

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

.proof-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.proof-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

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

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    max-width: 960px;
    margin: 0 auto;
}

.pricing-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-xl);
    position: relative;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.pricing-card:hover {
    border-color: #cbd5e1;
    box-shadow: var(--shadow-md);
}

.pricing-card.popular {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(14, 165, 233, 0.04) 100%);
    border-color: rgba(99, 102, 241, 0.25);
    transform: scale(1.02);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.375rem 1rem;
    background: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: white;
}

.pricing-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: var(--border-subtle);
}

.pricing-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.pricing-header p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.pricing-price {
    margin-bottom: var(--space-lg);
}

.price-original {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    text-decoration: line-through;
    margin-bottom: 0.25rem;
}

.price-current {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.pricing-features {
    margin-bottom: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.pricing-features li {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== Payment Trust ===== */
.payment-trust {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: var(--border-subtle);
}

.payment-trust p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.payment-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.payment-logo {
    height: 24px;
    opacity: 0.7;
}

.payment-icon {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Guarantee Section ===== */
.guarantee-section {
    background: var(--bg-primary);
    padding: var(--space-2xl) 0;
}

.guarantee-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    padding: var(--space-xl);
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-xl);
    max-width: 800px;
    margin: 0 auto;
}

.guarantee-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.guarantee-content h2 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.guarantee-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

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

.faq-container {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.faq-item {
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.faq-item:hover {
    border-color: #cbd5e1;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-normal);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    font-size: 1.25rem;
    color: var(--text-muted);
    transition: transform var(--transition-normal);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
}

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

.faq-answer p {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.7;
}

/* ===== Final CTA Section ===== */
.final-cta-section {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: var(--space-3xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 560px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
}

.cta-content>p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.cta-guarantee {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
    flex-wrap: wrap;
}

.cta-guarantee span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-primary);
    padding: var(--space-2xl) 0 var(--space-lg);
    border-top: var(--border-subtle);
}

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

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: var(--space-sm);
    max-width: 280px;
}

.social-links {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.social-links a {
    font-size: 1.125rem;
    opacity: 0.6;
    transition: opacity var(--transition-normal);
}

.social-links a:hover {
    opacity: 1;
}

.footer-links h4 {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.footer-links a {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    padding: 0.375rem 0;
}

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

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: var(--border-subtle);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-secondary);
    border: var(--border-card);
    border-radius: var(--radius-xl);
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.modal-close:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.modal-header {
    padding: var(--space-xl);
    text-align: center;
    border-bottom: var(--border-subtle);
}

.modal-header h2 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.modal-subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.modal-body {
    padding: var(--space-xl);
}

.order-summary {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.order-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    font-size: 0.875rem;
}

.order-item:first-child {
    padding-top: 0;
}

.item-name {
    color: var(--text-secondary);
}

.order-shipping {
    color: var(--text-muted);
}

.free-shipping {
    color: var(--success);
    font-weight: 500;
}

.order-divider {
    height: 1px;
    background: var(--border-subtle);
    margin: var(--space-xs) 0;
}

.order-total {
    font-weight: 600;
}

.total-price {
    color: var(--text-primary);
    font-size: 1rem;
}

.paypal-container {
    margin-bottom: var(--space-lg);
}

.paypal-info {
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

/* ===== Shipping Form ===== */
.shipping-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-group input,
.form-group select {
    padding: 0.75rem;
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 4px;
}

.btn-link:hover {
    text-decoration: underline;
}

.shipping-preview {
    background: rgba(99, 102, 241, 0.05);
    border: 1px dashed var(--primary-light);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.shipping-preview h4 {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

/* Custom Checkbox */
.checkbox-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    user-select: none;
    padding: var(--space-sm) 0;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    height: 18px;
    width: 18px;
    background-color: var(--bg-card);
    border: var(--border-subtle);
    border-radius: 4px;
    position: relative;
    transition: var(--transition-fast);
}

.checkbox-container:hover input~.checkmark {
    border-color: var(--primary-light);
}

.checkbox-container input:checked~.checkmark {
    background-color: var(--primary);
    border-color: var(--primary);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-container input:checked~.checkmark:after {
    display: block;
}

.guarantee-reminder {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* ===== Success Screen (Premium) ===== */
.success-screen {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
}

.success-icon-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.success-ring {
    position: absolute;
    inset: 0;
    border: 4px solid var(--success-light);
    border-radius: var(--radius-full);
    animation: ringScale 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.success-checkmark-premium {
    font-size: 2.5rem;
    color: var(--success);
    font-weight: 700;
    transform: scale(0);
    animation: checkmarkPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s forwards;
}

.success-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.success-subtitle {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--space-xl);
}

.success-details {
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    text-align: left;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs) 0;
    font-size: 0.8125rem;
}

.detail-row span:first-child {
    color: var(--text-muted);
}

.detail-value {
    color: var(--text-primary);
    font-weight: 500;
}

.success-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
}

@keyframes ringScale {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes checkmarkPop {
    0% {
        transform: scale(0);
    }

    100% {
        transform: scale(1);
    }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .features-grid,
    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: var(--space-3xl) var(--space-lg);
        gap: var(--space-md);
        transition: right var(--transition-normal);
        border-left: var(--border-subtle);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-cta {
        display: none;
    }

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

    .hero {
        text-align: center;
    }

    .hero-stats {
        gap: var(--space-lg);
    }

    .stat-divider {
        display: none;
    }

    .steps-container {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

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

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

    .testimonial-card.featured {
        grid-column: span 1;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .guarantee-wrapper {
        flex-direction: column;
        text-align: center;
    }

    .social-proof-content {
        flex-wrap: wrap;
        gap: var(--space-xl);
    }

    .cta-guarantee {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .floating-badge {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --space-2xl: 4rem;
        --space-3xl: 5rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }

    .btn-lg {
        padding: 0.875rem 2rem;
    }
}

/* ===== Product Gallery Styles ===== */
.product-gallery {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 400px;
}

.product-gallery .product-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 380px;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.5s ease, transform 0.5s ease;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.product-gallery .product-img.active {
    position: relative;
    opacity: 1;
    transform: scale(1);
    animation: float 8s ease-in-out infinite;
}

.gallery-thumbnails {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-top: var(--space-md);
    position: relative;
    z-index: 3;
}

.thumbnail {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    padding: 0;
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition-normal);
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

.thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.thumbnail:hover {
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

.thumbnail.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* ===== Testimonials with Photos ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.testimonial-card.has-photo {
    display: flex;
    flex-direction: column;
}

.testimonial-photo {
    width: 100%;
    height: 180px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-md);
    background: var(--bg-tertiary);
    position: relative;
}

.testimonial-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.testimonial-card.has-photo:hover .testimonial-photo img {
    transform: scale(1.05);
}

.testimonial-photo::after {
    content: '📸 Customer Photo';
    position: absolute;
    bottom: 0.5rem;
    left: 0.5rem;
    padding: 0.25rem 0.5rem;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    font-size: 0.6875rem;
    border-radius: var(--radius-sm);
    backdrop-filter: blur(4px);
}

/* ===== Animation Demo Styles ===== */
.animation-demo {
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--bg-card);
    border: var(--border-subtle);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.demo-visual {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.airway-animation {
    position: relative;
    width: 300px;
}

.airway-container {
    position: relative;
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.03) 0%, rgba(14, 165, 233, 0.05) 100%);
    border-radius: var(--radius-xl);
    border: var(--border-subtle);
}

.nose-svg {
    width: 200px;
    height: 250px;
}

.nostril {
    transition: all 1s ease;
}

.airway-animation.expanded .left-nostril {
    d: path("M65 140 Q45 160 50 185 Q60 205 85 200 Q95 185 95 165 Q95 145 65 140");
}

.airway-animation.expanded .right-nostril {
    d: path("M135 140 Q155 160 150 185 Q140 205 115 200 Q105 185 105 165 Q105 145 135 140");
}

.device-clips {
    transition: all 0.8s ease;
}

.airway-animation.expanded .clip,
.airway-animation.expanded .clip-connector {
    opacity: 1;
}

/* Air particles */
.air-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--accent-light);
    border-radius: 50%;
    opacity: 0;
    bottom: 20%;
}

.particle.p1 {
    left: 35%;
    animation-delay: 0s;
}

.particle.p2 {
    left: 60%;
    animation-delay: 0.3s;
}

.particle.p3 {
    left: 38%;
    animation-delay: 0.6s;
}

.particle.p4 {
    left: 57%;
    animation-delay: 0.9s;
}

.particle.p5 {
    left: 42%;
    animation-delay: 1.2s;
}

.particle.p6 {
    left: 53%;
    animation-delay: 1.5s;
}

.airway-animation.playing .particle {
    animation: particleRise 2s ease-out infinite;
}

.airway-animation.expanded .particle {
    animation: particleRiseFast 1.2s ease-out infinite;
    width: 10px;
    height: 10px;
}

@keyframes particleRise {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }

    20% {
        opacity: 0.6;
    }

    80% {
        opacity: 0.4;
    }

    100% {
        opacity: 0;
        transform: translateY(-150px) scale(1);
    }
}

@keyframes particleRiseFast {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }

    20% {
        opacity: 0.8;
    }

    80% {
        opacity: 0.6;
    }

    100% {
        opacity: 0;
        transform: translateY(-180px) scale(1.2);
    }
}

/* Blockage indicator */
.blockage-indicator {
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.airway-animation.playing:not(.expanded) .blockage-indicator {
    opacity: 1;
}

.blockage-text {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--error);
    margin-bottom: 0.5rem;
}

.blockage-waves {
    display: flex;
    gap: 0.25rem;
    justify-content: center;
}

.wave {
    width: 3px;
    height: 20px;
    background: var(--error);
    border-radius: 2px;
    animation: waveBlock 0.5s ease-in-out infinite alternate;
}

.wave.w2 {
    animation-delay: 0.15s;
}

.wave.w3 {
    animation-delay: 0.3s;
}

@keyframes waveBlock {
    0% {
        transform: scaleY(0.5);
        opacity: 0.5;
    }

    100% {
        transform: scaleY(1);
        opacity: 1;
    }
}

/* Success indicator */
.success-indicator {
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.airway-animation.expanded .success-indicator {
    opacity: 1;
}

.success-text {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--success);
    margin-bottom: 0.5rem;
}

.success-check {
    display: inline-flex;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    background: var(--success);
    color: white;
    border-radius: 50%;
    font-size: 1rem;
    animation: checkPop 0.5s ease;
}

@keyframes checkPop {
    0% {
        transform: scale(0);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

/* Animation status */
.animation-status {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.status-before,
.status-after {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all 0.5s ease;
}

.status-before {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    opacity: 0.5;
}

.status-after {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
    opacity: 0.5;
}

.airway-animation.playing:not(.expanded) .status-before {
    opacity: 1;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.3);
}

.airway-animation.expanded .status-after {
    opacity: 1;
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.3);
}

/* Demo controls */
.demo-controls {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.demo-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
}

.demo-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.demo-btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.demo-btn-secondary:hover {
    background: var(--bg-secondary);
}

.play-icon {
    font-size: 0.75rem;
}

/* Steps animation enhancements */
.animated-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.animated-steps .step-card {
    flex: 1;
    max-width: 280px;
}

.step-connector-line {
    width: 60px;
    height: 20px;
    flex-shrink: 0;
}

.step-connector-line svg {
    width: 100%;
    height: 100%;
}

.connector-path {
    stroke-dashoffset: 0;
    animation: dashMove 2s linear infinite;
}

@keyframes dashMove {
    to {
        stroke-dashoffset: -20;
    }
}

.animated-visual {
    position: relative;
}

.step-animation-ring {
    position: absolute;
    inset: -8px;
    border: 2px solid var(--primary-light);
    border-radius: var(--radius-lg);
    opacity: 0;
    animation: ringPulse 2s ease-out infinite;
}

.step-card:nth-child(1) .step-animation-ring {
    animation-delay: 0s;
}

.step-card:nth-child(3) .step-animation-ring {
    animation-delay: 0.5s;
}

.step-card:nth-child(5) .step-animation-ring {
    animation-delay: 1s;
}

@keyframes ringPulse {
    0% {
        opacity: 0.6;
        transform: scale(0.9);
    }

    100% {
        opacity: 0;
        transform: scale(1.2);
    }
}

.expansion-indicator {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--success);
    color: white;
    font-size: 0.625rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-full);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.zzz-animation {
    position: absolute;
    top: -15px;
    right: -15px;
    display: flex;
    gap: 2px;
}

.zzz-animation span {
    color: var(--primary);
    font-weight: 700;
    animation: zzzFloat 2s ease-in-out infinite;
}

.zzz-animation span:nth-child(1) {
    font-size: 0.875rem;
    animation-delay: 0s;
}

.zzz-animation span:nth-child(2) {
    font-size: 0.75rem;
    animation-delay: 0.3s;
}

.zzz-animation span:nth-child(3) {
    font-size: 0.625rem;
    animation-delay: 0.6s;
}

@keyframes zzzFloat {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0.5;
    }

    50% {
        transform: translateY(-8px) translateX(4px);
        opacity: 1;
    }
}

/* Responsive for animation demo */
@media (max-width: 768px) {
    .animated-steps {
        flex-direction: column;
        gap: var(--space-md);
    }

    .step-connector-line {
        width: 20px;
        height: 40px;
        transform: rotate(90deg);
    }

    .animated-steps .step-card {
        max-width: 100%;
    }

    .airway-animation {
        width: 250px;
    }

    .airway-container {
        height: 250px;
    }

    .animation-demo {
        padding: var(--space-md);
    }

    .gallery-thumbnails {
        gap: 0.5rem;
    }

    .thumbnail {
        width: 48px;
        height: 48px;
    }
}