:root {
    --bg-color: #050507;
    --card-bg: #121215;
    --card-bg-hover: #18181C;
    --primary-gradient: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    --accent-glow: #8B5CF6;
    --text-main: #FFFFFF;
    --text-muted: #9CA3AF;
    --border-color: #27272A;
    --success: #10B981;
    --font-family: 'Outfit', sans-serif;
    --ease-elastic: cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.5;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

/* Ambient Background */
.ambient-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    z-index: 0;
    pointer-events: none;
}

.glow-1 {
    top: -100px;
    left: -100px;
    background: #4F46E5;
}

.glow-2 {
    bottom: -100px;
    right: -100px;
    background: #EC4899;
}

/* Typography */
h1.title-display {
    font-size: 3.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

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

.subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Sticky Header */
.sticky-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 0;
    background: rgba(5, 5, 7, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 100;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.sticky-header.visible {
    transform: translateY(0);
}

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

.logo-text {
    font-weight: 700;
    font-size: 1.5rem;
}

.sticky-actions {
    display: flex;
    gap: 0.5rem;
}

/* Buttons */
.btn {
    cursor: pointer;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.btn-block {
    display: block;
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem;
    font-size: 1.125rem;
}

/* Header Section & Toggle */
.header-section {
    padding-top: 6rem;
    padding-bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.toggle-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
}

.toggle-label {
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
}

.toggle-label.active {
    color: var(--text-main);
}

.toggle-switch {
    width: 50px;
    height: 26px;
    background: #333;
    border-radius: 13px;
    position: relative;
    cursor: pointer;
    transition: background 0.3s ease;
}

.toggle-switch[aria-checked="true"] {
    background: var(--accent-glow);
}

.toggle-knob {
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform 0.3s var(--ease-elastic);
}

.toggle-switch[aria-checked="true"] .toggle-knob {
    transform: translateX(24px);
}

.badge-save {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 4px;
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
    align-items: center;
}

.plan-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.plan-card:hover {
    transform: translateY(-5px);
    background: var(--card-bg-hover);
}

/* Pro Card Styles */
.plan-card.featured {
    background: linear-gradient(180deg, rgba(30, 30, 35, 1) 0%, rgba(18, 18, 21, 1) 100%);
    border: 1px solid rgba(139, 92, 246, 0.5);
    box-shadow: 0 0 40px rgba(139, 92, 246, 0.1);
    transform: scale(1.05);
    /* Slight lift by default */
    z-index: 2;
}

.plan-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 0 50px rgba(139, 92, 246, 0.2);
}

.popular-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-gradient);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.card-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.card-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    height: 2.7rem;
    /* Fixed height for alignment */
}

.price-container {
    margin: 1.5rem 0 0.5rem;
    display: flex;
    align-items: baseline;
}

.symbol {
    font-size: 1.5rem;
    font-weight: 500;
    margin-right: 2px;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.period {
    color: var(--text-muted);
    margin-left: 4px;
}

.savings-text {
    height: 1.5rem;
    color: var(--success);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.feature-list li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    color: var(--text-muted);
}

.check-icon {
    color: var(--accent-glow);
    margin-right: 0.75rem;
    font-weight: bold;
}

.plan-card.featured .check-icon {
    color: #fff;
    background: var(--primary-gradient);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
}

/* Comparison Table */
.comparison-section {
    padding-bottom: 4rem;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.comparison-table {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    background: var(--card-bg);
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

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

.table-row:hover:not(.table-header) {
    background: rgba(255, 255, 255, 0.03);
}

/* Row highlight across columns - logic handled by :hover on row */

.table-header {
    background: rgba(255, 255, 255, 0.02);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.col-plan {
    text-align: center;
}

.col-feature {
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.check {
    color: var(--success);
}

.cross {
    color: #52525B;
}

/* Tooltips */
.tooltip-container {
    position: relative;
    display: inline-flex;
    cursor: help;
}

.info-icon {
    width: 18px;
    height: 18px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.glass-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    width: 200px;
    padding: 0.75rem;
    background: rgba(20, 20, 25, 0.8);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-main);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 10;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.tooltip-container:hover .glass-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

/* Checkout Overlay (FLIP) */
.checkout-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 200;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.checkout-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.checkout-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    padding: 2rem;
    position: relative;
    /* Initial state matching card is handled via JS or separate class logic */
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.checkout-price {
    font-size: 2rem;
    font-weight: 700;
    margin: 1rem 0;
    color: var(--accent-glow);
}

.checkout-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.checkout-form input {
    display: block;
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: white;
}

.secure-text {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* Skeleton Loader */
.skeleton-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    z-index: 999;
}

.skeleton-container {
    padding-top: 6rem;
}

.skeleton-header {
    height: 100px;
    width: 60%;
    margin: 0 auto 4rem;
    background: #121215;
    border-radius: 8px;
}

.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skeleton-card {
    height: 500px;
    background: #121215;
    border-radius: 16px;
    animation: pulse 1.5s infinite;
}

.skeleton-card.featured {
    height: 540px;
    margin-top: -20px;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }

    100% {
        opacity: 1;
    }
}

@media (max-width: 768px) {
    h1.title-display {
        font-size: 2.5rem;
    }

    .plan-card.featured {
        transform: none;
        box-shadow: none;
    }

    .plan-card.featured:hover {
        transform: translateY(-5px);
    }

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