:root {
    --primary: hsl(220, 90%, 56%);
    --primary-hover: hsl(220, 90%, 48%);
    --accent: hsl(320, 80%, 55%);
    --accent-glow: hsla(320, 80%, 55%, 0.4);
    --bg-dark: hsl(222, 47%, 7%);
    --bg-card: hsl(222, 47%, 11%);
    --bg-card-hover: hsl(222, 47%, 15%);
    --border: hsl(222, 30%, 18%);
    --text-primary: hsl(210, 40%, 98%);
    --text-secondary: hsl(215, 20%, 75%);
    --text-muted: hsl(215, 16%, 50%);
    --success: hsl(142, 70%, 45%);
    --danger: hsl(350, 80%, 50%);
    --warning: hsl(45, 90%, 50%);
    --font-ar: 'Cairo', sans-serif;
    --font-en: 'Outfit', sans-serif;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-ar);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 900px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
}

/* Header & Navbar */
.main-header {
    position: sticky;
    top: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.navbar-container {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 0 15px var(--accent-glow);
}

.logo-text {
    background: linear-gradient(to left, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-link:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-ar);
    font-weight: 600;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--accent-glow);
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--text-secondary);
}

/* Hero Section */
.hero-section {
    padding: 6rem 0 4rem;
    position: relative;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.3);
    padding: 0.35rem 1rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1.5rem;
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.05);
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 40%, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (max-width: 768px) {
    .hero-title { font-size: 2.25rem; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Features Section */
.features-section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--text-secondary);
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

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

/* Pricing Section */
.pricing-section {
    padding: 5rem 0;
    background: linear-gradient(to bottom, transparent, rgba(15, 23, 42, 0.5));
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    position: relative;
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.15);
}

.pricing-badge {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    background: var(--primary);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 700;
}

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

.pricing-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    font-family: var(--font-en);
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    font-family: var(--font-ar);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.pricing-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features i {
    color: var(--success);
}

/* Card and Forms */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-control, .form-input, .form-select {
    width: 100%;
    padding: 0.85rem 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-ar);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus, .form-input:focus, .form-select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.form-control::placeholder, .form-input::placeholder {
    color: var(--text-muted);
}

.text-muted {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    display: block;
}

/* Footer */
.main-footer {
    border-top: 1px solid var(--border);
    background: hsl(222, 47%, 4%);
    padding: 5rem 0 2rem;
    margin-top: 6rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-desc {
    color: var(--text-secondary);
    margin-top: 1rem;
    max-width: 400px;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

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

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

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Registration Stepper Details */
#stepsList {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition);
}

.step-item.active {
    border-color: var(--primary);
    color: var(--text-primary);
    background: rgba(37, 99, 235, 0.05);
}

.step-item.done {
    border-color: var(--success);
    color: var(--success);
}

.step-item.error {
    border-color: var(--danger);
    color: var(--danger);
}

.step-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}