/* HTRN85 DNS Security - Landing Page Styles */

:root {
    --primary-color: #0066ff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --purple-color: #6f42c1;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #333;
    overflow-x: hidden;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Navbar */
.navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(33, 37, 41, 0.95) !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: cover;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-content .text-primary {
    color: #ffd700 !important;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.feature-badge {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    white-space: nowrap;
}

.hero-cta .btn {
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.hero-cta .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.dashboard-preview {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 0.8s ease-in;
}

.animate-fade-in-delay-1 {
    animation: fadeIn 0.8s ease-in 0.2s backwards;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 0.8s ease-in 0.4s backwards;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 0.8s ease-in 0.6s backwards;
}

.animate-fade-in-delay-4 {
    animation: fadeIn 0.8s ease-in 0.8s backwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0052cc 100%);
}

.stat-item h2 {
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.counter {
    font-family: 'Inter', monospace;
    font-weight: 800;
}

/* Features Section */
.feature-card {
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: 1.5rem;
}

.bg-purple {
    background-color: var(--purple-color) !important;
}

/* How It Works Section */
.how-it-works-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.how-it-works-section .text-center h2,
.how-it-works-section .text-center p {
    color: #ffffff !important;
}

.how-it-works-section .text-muted {
    color: #a0aec0 !important;
}

.step-card {
    position: relative;
    padding: 2.5rem 2rem 2rem;
    background: #ffffff;
    border-radius: 16px;
    border-top: 5px solid #667eea;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: scale(1.05) translateY(-6px);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
    border-top-color: #ffd700;
}

.step-number {
    position: absolute;
    top: -22px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    border: 3px solid #ffffff;
}

.step-icon {
    margin: 2rem 0 1rem;
}

/* Pricing Section */
.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.pricing-card.featured {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: 3px solid #ffd700;
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.08) translateY(-10px);
}

.pricing-card.featured .pricing-header h4,
.pricing-card.featured .pricing-header p,
.pricing-card.featured .pricing-features,
.pricing-card.featured .text-muted {
    color: white !important;
}

.pricing-card.featured .btn-primary {
    background-color: #ffd700;
    border-color: #ffd700;
    color: #333;
    font-weight: 700;
}

.pricing-card.featured .btn-primary:hover {
    background-color: #ffed4e;
    border-color: #ffed4e;
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: #ffd700;
    color: #333;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
}

.pricing-header h4 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.pricing-price {
    text-align: center;
    margin-bottom: 2rem;
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.pricing-card.featured .price-amount {
    color: #ffd700;
}

.price-period {
    font-size: 1.2rem;
    color: #6c757d;
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid #eee;
    font-weight: 500;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    margin-right: 0.5rem;
}

/* Accordion */
.accordion-item {
    border: none;
    margin-bottom: 1rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.accordion-button {
    font-weight: 600;
    font-size: 1.1rem;
    padding: 1.25rem 1.5rem;
    background-color: white;
}

.accordion-button:not(.collapsed) {
    background-color: var(--primary-color);
    color: white;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--primary-color);
}

.accordion-body {
    padding: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* Footer */
.footer a {
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--primary-color) !important;
}

.social-links a {
    display: inline-block;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: scale(1.2);
    color: var(--primary-color) !important;
}

/* Utility Classes */
.bg-purple {
    background-color: var(--purple-color) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-cta .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .pricing-card {
        margin-bottom: 2rem;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
}

/* Loading Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

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

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Button Enhancements */
.btn {
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5568d3 0%, #653a8c 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-lg {
    font-size: 1.1rem;
    padding: 0.875rem 2rem;
}

/* Scroll Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}