/* ==========================================================================
   ZenState Premium Design System
   Theme: Midnight Sleep & Recovery (Dark Mode)
   ========================================================================== */

:root {
    /* Color Palette */
    --bg-dark: #070a13;
    --bg-card: #0f1526;
    --bg-card-hover: #161f36;
    --primary: #6366f1; /* Calming Indigo */
    --primary-glow: rgba(99, 102, 241, 0.4);
    --secondary: #14b8a6; /* Relaxing Teal */
    --secondary-glow: rgba(20, 184, 166, 0.4);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-dark: #1f2937;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --border-color: #1e293b;
    
    /* Layout & Spacing */
    --container-width: 1200px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

a {
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.dark-bg {
    background-color: #05070d;
}

/* ==========================================================================
   Utilities
   ========================================================================== */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }

.hidden {
    display: none !important;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.6);
}

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

.btn-secondary:hover {
    background-color: var(--bg-card-hover);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.1rem;
    border-radius: var(--border-radius-sm);
}

/* ==========================================================================
   Header Styles
   ========================================================================== */
.main-header {
    background-color: rgba(7, 10, 19, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 100;
    padding: 16px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.8rem;
    color: var(--secondary);
    text-shadow: 0 0 10px var(--secondary-glow);
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.6rem;
    letter-spacing: -0.03em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a:not(.btn):hover {
    color: var(--secondary);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    padding: 80px 0 120px;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #a5b4fc;
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-lead {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-icon {
    color: var(--secondary);
    font-size: 1.2rem;
    background-color: rgba(20, 184, 166, 0.1);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
}

.stock-warning {
    color: var(--warning);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

/* Glowing Product Mockup card */
.hero-media {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-glow {
    position: absolute;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    z-index: 1;
    filter: blur(20px);
    animation: pulseGlow 8s infinite alternate;
}

.product-image-container {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition-smooth);
}

.product-main-image {
    max-width: 420px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.7));
    border-radius: var(--border-radius-md);
    transition: var(--transition-smooth);
}

.product-image-container:hover .product-main-image {
    transform: translateY(-8px) scale(1.03);
    filter: drop-shadow(0 30px 60px rgba(20, 184, 166, 0.4));
}

/* ==========================================================================
   Trust Bar
   ========================================================================== */
.trust-bar {
    background-color: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 24px 0;
}

.trust-flex {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.trust-item i {
    color: var(--secondary);
}

/* ==========================================================================
   Quality, Creator & Social Proof Sections
   ========================================================================== */
.quality-trust {
    background:
        radial-gradient(circle at top left, rgba(20, 184, 166, 0.08), transparent 34%),
        rgba(255, 255, 255, 0.01);
}

.quality-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 48px;
    align-items: center;
}

.quality-copy h2,
.creator-content h2 {
    font-size: 2.4rem;
    margin-bottom: 18px;
}

.quality-copy p,
.creator-content p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 16px;
}

.quality-points {
    display: grid;
    gap: 18px;
}

.quality-point {
    display: flex;
    gap: 16px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 22px;
}

.quality-point i {
    color: var(--secondary);
    font-size: 1.6rem;
    margin-top: 3px;
}

.quality-point h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.quality-point p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.creator-bio {
    background-color: rgba(255, 255, 255, 0.01);
}

.creator-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 28px;
    align-items: start;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(20, 184, 166, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 40px;
}

.creator-avatar {
    width: 88px;
    height: 88px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff;
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 800;
    box-shadow: 0 10px 30px rgba(20, 184, 166, 0.22);
}

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

.testimonial-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 28px;
}

.testimonial-rating {
    color: var(--warning);
    display: flex;
    gap: 4px;
    margin-bottom: 18px;
}

.testimonial-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.testimonial-card strong {
    color: var(--text-main);
    font-size: 0.9rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(20, 184, 166, 0.4);
}

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

.author-info strong {
    color: var(--text-main);
    font-size: 0.95rem;
    margin-bottom: 2px;
}

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

/* ==========================================================================
   Benefits Section
   ========================================================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.benefit-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 40px;
    transition: var(--transition-smooth);
}

.benefit-card:hover {
    transform: translateY(-6px);
    border-color: rgba(99, 102, 241, 0.4);
    background-color: var(--bg-card-hover);
}

.benefit-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 24px;
}

.benefit-card h3 {
    font-size: 1.35rem;
    margin-bottom: 16px;
}

.benefit-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ==========================================================================
   Science Section
   ========================================================================== */
.science-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.science-image {
    display: flex;
    justify-content: center;
}

.formula-box {
    background: radial-gradient(circle at top left, rgba(20, 184, 166, 0.08), transparent), var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 40px;
    text-align: center;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.formula-box h3 {
    color: var(--secondary);
    margin-bottom: 20px;
    font-size: 1.4rem;
}

.formula-chem {
    font-family: 'Outfit', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-main);
    letter-spacing: 0.05em;
}

.formula-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.science-lead {
    font-size: 1.2rem;
    color: #a5b4fc;
    margin-bottom: 30px;
    font-weight: 500;
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

.accordion-header {
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-fast);
}

.accordion-header:hover {
    color: var(--secondary);
}

.accordion-header i {
    font-size: 0.8rem;
    color: var(--primary);
    transition: var(--transition-fast);
}

.accordion-item.active .accordion-header i {
    transform: rotate(90deg);
}

.accordion-body {
    padding-top: 12px;
    color: var(--text-muted);
    font-size: 0.95rem;
    display: none;
}

.accordion-item.active .accordion-body {
    display: block;
}

/* ==========================================================================
   Compare Section
   ========================================================================== */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 40px;
    font-size: 0.95rem;
}

.compare-table th, .compare-table td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.compare-table th {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    background-color: rgba(255, 255, 255, 0.02);
}

.compare-table th.highlight, .compare-table td.highlight {
    background-color: rgba(99, 102, 241, 0.05);
    border-left: 2px solid var(--primary);
    border-right: 2px solid var(--primary);
}

.compare-table tr:last-child td.highlight {
    border-bottom: 2px solid var(--primary);
}

.compare-table th.highlight {
    border-top: 2px solid var(--primary);
}

/* ==========================================================================
   Order / CTA Section
   ========================================================================== */
.order-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: flex-start;
}

.order-info h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.order-lead {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin-bottom: 40px;
}

.pack-selection {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.pack-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    cursor: pointer;
    position: relative;
    transition: var(--transition-fast);
}

.pack-card:hover {
    border-color: rgba(20, 184, 166, 0.4);
    background-color: var(--bg-card-hover);
}

.pack-card.selected {
    border-color: var(--secondary);
    background-color: rgba(20, 184, 166, 0.05);
    box-shadow: 0 4px 20px rgba(20, 184, 166, 0.15);
}

.pack-radio {
    font-size: 1.25rem;
    color: var(--text-muted);
}

.pack-card.selected .pack-radio {
    color: var(--secondary);
}

.pack-details {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.pack-title {
    font-weight: 600;
    font-size: 1.05rem;
}

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

.pack-pricing {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 168px;
    text-align: right;
}

.old-price {
    font-size: 0.85rem;
    text-decoration: line-through;
    color: var(--text-muted);
    white-space: nowrap;
}

.current-price {
    font-weight: 700;
    font-size: 1.18rem;
    color: var(--secondary);
    white-space: nowrap;
}

.conversion-note {
    margin: -14px 0 26px;
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.5;
}

.pack-tag {
    position: absolute;
    top: -12px;
    right: 20px;
    background-color: var(--primary);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 100px;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.guarantee-box {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 20px;
    display: flex;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.guarantee-icon {
    color: var(--secondary);
    font-size: 1.8rem;
    flex-shrink: 0;
}

/* Order Form Container */
.order-form-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
}

.order-form-container h3 {
    font-size: 1.6rem;
    margin-bottom: 8px;
}

.form-lead {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 30px;
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input, .form-group select {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 14px 16px;
    color: var(--text-main);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition-fast);
    outline: none;
    width: 100%;
}

.form-group select {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ffffff'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 20px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    padding-right: 40px;
}

.form-group select option {
    background-color: #0f121d;
    color: #ffffff;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.35);
    opacity: 1; /* Firefox */
}

/* Autofill overrides for premium dark theme */
.form-group input:-webkit-autofill,
.form-group input:-webkit-autofill:hover,
.form-group input:-webkit-autofill:focus,
.form-group select:-webkit-autofill {
    -webkit-text-fill-color: var(--text-main) !important;
    -webkit-box-shadow: 0 0 0px 1000px #0f121d inset !important;
    transition: background-color 5000s ease-in-out 0s;
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--primary);
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
}

.price-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    margin-top: 10px;
}

.price-summary span {
    font-size: 1rem;
    color: var(--text-muted);
}

.price-summary strong {
    font-size: 1.48rem;
    color: var(--secondary);
    font-family: 'Outfit', sans-serif;
    text-align: right;
}

.security-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 16px;
}

.security-info span {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Spinner for Loading State */
.spinner {
    display: inline-block;
}

/* Success Overlay */
.success-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-card);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.success-content {
    animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.success-icon {
    font-size: 4rem;
    color: var(--success);
    margin-bottom: 24px;
    filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.3));
}

.success-content h2 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.success-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.success-details {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    font-weight: 500;
}

/* ==========================================================================
   Footer Styles
   ========================================================================== */
.main-footer {
    background-color: #04060b;
    border-top: 1px solid var(--border-color);
    padding: 60px 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr;
    gap: 40px;
}

.footer-brand .logo-text {
    color: var(--text-main);
    margin-bottom: 16px;
    display: block;
}

.footer-grid h4 {
    color: var(--text-main);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.footer-links, .footer-legal {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a:hover, .footer-legal a:hover {
    color: var(--secondary);
}

.footer-legal p {
    margin-top: 20px;
    line-height: 1.4;
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes pulseGlow {
    0% { transform: scale(1); filter: blur(20px); opacity: 0.8; }
    100% { transform: scale(1.15); filter: blur(30px); opacity: 1; }
}

@keyframes scaleIn {
    0% { transform: scale(0.9); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-grid, .science-grid, .order-grid, .quality-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-media {
        order: -1;
    }
    
    .science-image {
        order: -1;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    body {
        padding-bottom: 88px;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    .nav-links {
        display: none; /* Mobile menu can be added, kept minimal for landing */
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .quality-copy h2,
    .creator-content h2,
    .order-info h2,
    .section-header h2 {
        font-size: 2rem;
    }

    .creator-card {
        grid-template-columns: 1fr;
        padding: 28px;
    }
    
    .compare-table {
        display: block;
        border-collapse: separate;
        margin-top: 28px;
        overflow: visible;
    }

    .compare-table thead {
        display: none;
    }

    .compare-table tbody {
        display: grid;
        gap: 16px;
    }

    .compare-table tr {
        display: block;
        background-color: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius-sm);
        overflow: hidden;
    }

    .compare-table th,
    .compare-table td {
        display: block;
    }

    .compare-table td {
        border-bottom: 1px solid var(--border-color);
        padding: 16px 18px;
    }

    .compare-table td::before {
        content: attr(data-label);
        display: block;
        color: var(--secondary);
        font-size: 0.76rem;
        font-weight: 700;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        margin-bottom: 6px;
    }

    .compare-table td:first-child {
        background-color: rgba(255, 255, 255, 0.03);
    }

    .compare-table td:last-child {
        border-bottom: 0;
    }

    .compare-table th.highlight,
    .compare-table td.highlight {
        border-left: 0;
        border-right: 0;
        background-color: rgba(99, 102, 241, 0.09);
    }

    .compare-table tr:last-child td.highlight {
        border-bottom: 1px solid var(--border-color);
    }

    .pack-card {
        flex-wrap: wrap;
        align-items: flex-start;
        padding: 22px 18px;
    }

    .pack-tag {
        position: static;
        flex-basis: 100%;
        max-width: 100%;
        width: fit-content;
        margin-bottom: 2px;
    }

    .pack-details {
        min-width: 0;
    }

    .pack-pricing {
        flex-basis: 100%;
        min-width: 0;
        text-align: left;
        padding-left: 44px;
    }

    .price-summary strong {
        text-align: left;
    }

    .order-form-container {
        padding: 28px;
    }

    .security-info {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* ==========================================================================
   Floating CTA Button
   ========================================================================== */
.floating-cta {
    position: fixed;
    bottom: 24px;
    right: 24px;
    left: auto;
    transform: none;
    width: 100%;
    max-width: 320px;
    z-index: 99;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    transition: var(--transition-smooth);
    opacity: 0;
    pointer-events: none;
}

.floating-cta.visible {
    opacity: 1;
    pointer-events: auto;
}

.floating-cta .btn {
    box-shadow: none;
    border-radius: 0;
    padding: 16px 28px;
    font-size: 1.05rem;
}

@media (max-width: 768px) {
    .floating-cta {
        bottom: calc(12px + env(safe-area-inset-bottom));
        left: 16px;
        right: 16px;
        width: auto;
        max-width: none;
        border-radius: var(--border-radius-sm);
        transform: none;
    }

    .floating-cta .btn {
        min-height: 56px;
        padding: 14px 18px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .floating-cta {
        left: 12px;
        right: 12px;
    }
}

/* ==========================================================================
   6. Inline Validation Error Classes
   ========================================================================== */
.error-field {
    border-color: #ef4444 !important;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.2) !important;
    background-color: rgba(239, 68, 68, 0.02) !important;
}

.inline-error {
    animation: scaleIn 0.2s ease-out;
    color: #ef4444;
    font-size: 0.85rem;
    line-height: 1.4;
    margin-top: 4px;
}

.form-error-msg {
    color: #ff6b6b;
    font-size: 14px;
    margin-top: 10px;
    text-align: center;
    border: 1px solid #ff6b6b;
    padding: 10px;
    border-radius: 5px;
    background: rgba(255, 107, 107, 0.1);
}