:root {
    --accent-blue: #60B0CA;
    --accent-purple: #BD9FED;
    --accent-gray: #8E8E93;
    --mac-light-bg: #F9F6F1; /* New creamier background */
    --mac-dark-bg: #1e1e1e; /* Classic macOS dark surface */
    --mac-card-bg-light: rgba(255, 255, 255, 0.8);
    --mac-card-bg-dark: rgba(30, 30, 30, 0.8);
    --glass-border-light: rgba(0, 0, 0, 0.08);
    --glass-border-dark: rgba(255, 255, 255, 0.08);
    --text-primary-light: #1d1d1f;
    --text-primary-dark: #ffffff;
    --text-secondary-light: #6b6b6b;
    --text-secondary-dark: #98989f;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
}

/* Light Mode */
body.light-mode {
    background-color: var(--mac-light-bg);
    color: var(--text-primary-light);
    overflow-x: hidden;
}

body.light-mode .glass-nav {
    background: rgba(245, 245, 247, 0.8);
}

body.light-mode .glass-card {
    background: var(--mac-card-bg-light);
    border: 1px solid var(--glass-border-light);
}

body.light-mode .primary-btn {
    background: var(--text-primary-light);
    color: white;
}

body.light-mode .secondary-btn {
    color: var(--text-primary-light);
    border: 1px solid var(--glass-border-light);
}

body.light-mode .nav-links a {
    color: var(--text-secondary-light);
}

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

/* Dark Mode */
body.dark-mode {
    background-color: var(--mac-dark-bg);
    color: var(--text-primary-dark);
    overflow-x: hidden;
}

body.dark-mode .glass-nav {
    background: rgba(30, 30, 30, 0.7);
}

body.dark-mode .glass-card {
    background: var(--mac-card-bg-dark);
    border: 1px solid var(--glass-border-dark);
}

body.dark-mode .primary-btn {
    background: var(--text-primary-dark);
    color: black;
}

body.dark-mode .secondary-btn {
    color: var(--text-primary-dark);
    border: 1px solid var(--glass-border-dark);
}

body.dark-mode .nav-links a {
    color: var(--text-secondary-dark);
}

body.dark-mode .nav-links a:hover {
    color: var(--text-primary-dark);
    background: rgba(255, 255, 255, 0.05);
}

/* Glassmorphism Header */

.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 60px;
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border-bottom: 0.5px solid var(--glass-border-light);
    z-index: 1000;
}

.nav-content {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 20px;
}

.logo { font-weight: 600; font-size: 1.2rem; }
.logo span { color: var(--accent-blue); }

.nav-links { display: flex; list-style: none; gap: 30px; }
.nav-links a { 
    text-decoration: none; 
    color: var(--text-secondary-light); 
    font-size: 0.9rem; 
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    padding: 8px 12px;
    border-radius: 8px;
}
.nav-links a:hover { 
    color: var(--text-primary-light); 
    background: rgba(0, 0, 0, 0.05);
}

/* Hero Section & Liquid Blob */
.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

.liquid-blob {
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(96, 176, 202, 0.08);
    filter: blur(120px);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.6;
    animation: float 15s infinite alternate ease-in-out;
}

@keyframes float {
    0% { transform: translate(-10%, -10%) scale(1); }
    50% { transform: translate(10%, 5%) scale(1.1); }
    100% { transform: translate(-10%, -10%) scale(1); }
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

/* Credits Section */
.credits-section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary-light);
}

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

.credits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.credit-card {
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border-light);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    overflow: hidden;
}

.credit-card.featured {
    border: 1px solid var(--accent-blue);
    transform: scale(1.02);
}

.credit-card.starter-pack {
    border: 1px solid var(--accent-gray);
}

.card-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-blue);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.credit-card:hover {
    transform: scale(1.03) translateY(-8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.credit-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.starter-image {
    background: rgba(142, 142, 147, 0.1);
}

.standard-image {
    background: rgba(96, 176, 202, 0.1);
}

.premium-image {
    background: rgba(0, 0, 0, 0.05);
}

.card-image {
    width: 100%;
    height: 120px;
    border-radius: 16px;
    margin-bottom: 24px;
    opacity: 0.9;
    position: relative;
    overflow: hidden;
}

.card-image::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    backdrop-filter: blur(10px);
}

.credit-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary-light);
}

.credits-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary-light);
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1.2;
}

.price-display {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.current-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary-light);
}

.original-price {
    font-size: 1.2rem;
    color: var(--text-secondary-light);
    text-decoration: line-through;
}

.pack-description {
    color: var(--text-secondary-light);
    margin-bottom: 24px;
    line-height: 1.5;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    max-width: 400px;
    width: 90%;
    padding: 40px;
    text-align: center;
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--text-primary-light);
}

.modal-content p {
    color: var(--text-secondary-light);
    margin-bottom: 24px;
}

.macos-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--glass-border-light);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    font-size: 1rem;
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

.macos-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.8);
}

.modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.modal-buttons button {
    min-width: 100px;
}

/* Balance Display */
.balance-display {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.glass-card {
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border-light);
    border-radius: 24px;
    padding: 40px;
    text-align: center;
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.glass-card:hover {
    transform: scale(1.03) translateY(-8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.primary-btn {
    background: var(--accent-blue);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 99px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.primary-btn:hover { 
    opacity: 0.9; 
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 25px rgba(96, 176, 202, 0.25);
}

.secondary-btn {
    background: transparent;
    color: var(--text-primary-light);
    border: 1px solid var(--glass-border-light);
    padding: 10px 24px;
    border-radius: 99px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.secondary-btn:hover { 
    background: var(--mac-card-bg-light); 
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    border-radius: 16px;
    margin-bottom: 20px;
    opacity: 0.8;
}