@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #fbfbfd; /* Apple-like light gray/white */
    --surface-color: rgba(255, 255, 255, 0.85);
    --border-color: rgba(0, 0, 0, 0.08);
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --accent-1: #0066cc; /* Premium Blue */
    --accent-2: #0077ed; 
    --accent-gradient: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
    --card-hover-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(0, 102, 204, 0.03) 0%, rgba(251, 251, 253, 0) 50%),
                radial-gradient(circle at 80% 20%, rgba(0, 119, 237, 0.02) 0%, rgba(251, 251, 253, 0) 40%);
    z-index: -1;
    pointer-events: none;
}

/* Navbar */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 5%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    opacity: 0.8;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: opacity 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    opacity: 1;
}

.nav-links a.btn {
    color: #fff;
    opacity: 1;
}

/* Hero Section - Two Column Layout */
.hero {
    padding: 8rem 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    background: transparent;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
    text-align: left;
}

.hero-image {
    flex: 1;
    max-width: 600px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transform: translateY(0);
    transition: transform 0.5s ease;
}

.hero-image img:hover {
    transform: translateY(-10px);
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    color: var(--text-primary);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-weight: 400;
    max-width: 90%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    background: var(--text-primary);
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    border-radius: 980px;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #000;
    transform: scale(1.02);
}

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

.btn-outline:hover {
    background: var(--text-primary);
    color: #fff;
}

/* Containers & Grids */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.75rem;
    margin-bottom: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.8px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

/* Cards (Glassmorphism on light) */
.card {
    background: var(--surface-color);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    position: relative;
}

.card-img {
    width: calc(100% + 5rem);
    margin: -2.5rem -2.5rem 2rem -2.5rem;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-hover-shadow);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.5px;
}

.card-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    letter-spacing: -1px;
}

.card-price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: normal;
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

/* Course Details List */
.includes-list {
    list-style: none;
    margin: 1.5rem 0;
    text-align: left;
}

.includes-list li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.85rem;
    color: var(--text-primary);
    font-size: 1rem;
}

.includes-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-1);
    font-weight: bold;
}

.bonus-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.bonus-section h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

/* Footer */
footer {
    margin-top: auto;
    background: #f5f5f7;
    border-top: 1px solid var(--border-color);
    padding: 4rem 5%;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

footer p {
    margin-bottom: 0.5rem;
}

.footer-copy {
    margin-top: 2rem;
    opacity: 0.8;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 1.1rem;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.02) inset;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-1);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
}

/* Status Pages (Success/Failure) */
.status-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 300;
}

.status-success {
    color: #34c759;
}

.status-failure {
    color: #ff3b30;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(0, 102, 204, 0.08);
    color: var(--accent-1);
    border-radius: 980px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

/* Detail Box */
.detail-box {
    text-align: left; 
    background: #f5f5f7; 
    padding: 2.5rem; 
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.highlight-box {
    text-align: left;
    background: #f5f5f7; 
    padding: 1.5rem; 
    border-radius: 12px; 
    margin-bottom: 2rem; 
    border: 1px solid var(--border-color);
}

/* Responsive */
@media (max-width: 900px) {
    .hero { flex-direction: column; text-align: center; padding: 4rem 2rem; }
    .hero-content { text-align: center; }
    .hero p { margin: 0 auto 3rem auto; }
}

@media (max-width: 768px) {
    .nav { flex-direction: column; gap: 1rem; }
    .nav-links { gap: 1rem; flex-wrap: wrap; justify-content: center; }
    .hero h1 { font-size: 3rem; }
}