/* ===================================
   Novantic AI Landing Page Styles
   Dark Mode Theme with Modern Design
   =================================== */

/* ===================================
   CSS Variables & Custom Properties
   =================================== */
:root {
    /* Color Palette - Dark Theme */
    --color-bg-dark: #0a0a0f;
    --color-bg-dark-alt: #13131a;
    --color-bg-card: #1a1a24;
    --color-bg-card-hover: #22222e;
    
    /* Primary Brand Colors */
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    --color-primary-soft: rgba(99, 102, 241, 0.15);
    
    /* Accent Colors */
    --color-accent: #a855f7;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;
    
    /* Text Colors */
    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-light: #94a3b8;
    --color-text-muted: #64748b;
    
    /* Border & Divider */
    --color-border: rgba(255, 255, 255, 0.1);
    --color-divider: rgba(255, 255, 255, 0.05);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 100px;
    --section-padding-mobile: 60px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

/* ===================================
   Base Styles & Reset
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===================================
   Accessibility
   =================================== */
.skip-to-main {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: 1rem 2rem;
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-to-main:focus {
    top: 0;
}

/* Focus Styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===================================
   Utility Classes
   =================================== */
.text-light-gray {
    color: var(--color-text-light);
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-padding {
    padding: var(--section-padding) 0;
}

.bg-dark-alt {
    background-color: var(--color-bg-dark-alt);
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-accent) 100%);
}

.bg-primary-soft {
    background-color: var(--color-primary-soft) !important;
    color: var(--color-primary-light) !important;
}

.bg-danger-soft {
    background-color: rgba(239, 68, 68, 0.15) !important;
    color: #fca5a5 !important;
}

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

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

/* ===================================
   Navigation Bar
   =================================== */
.navbar {
    background-color: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    transition: all var(--transition-base);
    border-bottom: 1px solid var(--color-border);
}

.navbar.scrolled {
    background-color: rgba(10, 10, 15, 0.98);
    box-shadow: var(--shadow-md);
    padding: 0.5rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-primary) !important;
    transition: transform var(--transition-fast);
}

.navbar-logo {
    height: 60px;
    width: auto;
    max-width: 300px;
    object-fit: contain;
    transition: height var(--transition-base);
}

.navbar.scrolled .navbar-logo {
    height: 50px;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.navbar-nav .nav-link {
    color: var(--color-text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    margin: 0 0.25rem;
    transition: color var(--transition-fast);
    border-radius: var(--radius-sm);
}

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

.navbar-nav .nav-link.btn {
    color: white !important;
    background-color: var(--color-primary);
    border-radius: var(--radius-md);
}

.navbar-nav .nav-link.btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.navbar-toggler {
    border-color: var(--color-border);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.25rem rgba(99, 102, 241, 0.25);
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    background: radial-gradient(ellipse at top, rgba(99, 102, 241, 0.15) 0%, transparent 60%),
                radial-gradient(ellipse at bottom, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
                var(--color-bg-dark);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
}

.hero-title {
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.stat-badge {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-heading);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-card {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-card-hover) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 4rem;
    box-shadow: var(--shadow-glow);
    animation: float 6s ease-in-out infinite;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: var(--color-text-light);
    font-size: 2rem;
    transition: color var(--transition-fast);
}

.scroll-indicator a:hover {
    color: var(--color-primary);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===================================
   Buttons
   =================================== */
.btn {
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.75rem 2rem;
    transition: all var(--transition-base);
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    background-color: transparent;
}

.btn-outline-light:hover {
    border-color: white;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

/* ===================================
   Badge Styles
   =================================== */
.badge {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===================================
   Problem Cards
   =================================== */
.problem-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: 100%;
    transition: all var(--transition-base);
}

.problem-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-danger);
    box-shadow: var(--shadow-lg);
}

.problem-icon i {
    font-size: 3rem;
}

/* ===================================
   Feature Cards
   =================================== */
.feature-card {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-card-hover) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon-wrapper i {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Comparison Cards
   =================================== */
.comparison-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.comparison-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-divider);
}

.comparison-list li:last-child {
    border-bottom: none;
}

/* ===================================
   Benefit Section
   =================================== */
.benefit-visual {
    position: relative;
}

.benefit-item {
    display: flex;
    gap: 1.5rem;
    align-items: start;
}

.benefit-number {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 80px;
}

/* ===================================
   Process Steps
   =================================== */
.process-step {
    position: relative;
    padding: 2rem;
}

.process-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    box-shadow: var(--shadow-glow);
}

.process-icon {
    font-size: 4rem;
    color: var(--color-primary-light);
    opacity: 0.8;
}

.process-step:hover .process-icon {
    opacity: 1;
    transform: scale(1.1);
    transition: all var(--transition-base);
}

/* ===================================
   Audience Cards
   =================================== */
.audience-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    transition: all var(--transition-base);
}

.audience-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    background-color: var(--color-bg-card-hover);
    box-shadow: var(--shadow-md);
}

.audience-icon {
    font-size: 3rem;
    color: var(--color-primary-light);
}

/* ===================================
   About Section
   =================================== */
.about-visual {
    display: grid;
    gap: 1.5rem;
}

.about-card {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-card-hover) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-base);
}

.about-card:hover {
    transform: translateX(10px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.about-stat {
    padding: 1rem;
    border-left: 3px solid var(--color-primary);
}

/* ===================================
   Contact Form
   =================================== */
.contact-card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
}

.contact-form .form-control {
    background-color: var(--color-bg-dark-alt);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    border-radius: var(--radius-md);
    padding: 0.875rem 1.25rem;
    transition: all var(--transition-base);
}

.contact-form .form-control:focus {
    background-color: var(--color-bg-dark);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.25rem rgba(99, 102, 241, 0.25);
    color: var(--color-text-primary);
}

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

.contact-form .invalid-feedback {
    color: var(--color-danger);
    font-size: 0.875rem;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-bg-dark);
    border-top: 1px solid var(--color-border);
}

.footer h5,
.footer h6 {
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--color-text-light);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: 5px;
    transition: all var(--transition-fast);
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-light);
    transition: all var(--transition-base);
}

.social-icon:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ===================================
   Back to Top Button
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: white;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1000;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-glow);
    border: none;
}

.back-to-top:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-5px);
}

.back-to-top.show {
    display: flex;
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 991px) {
    :root {
        --section-padding: 60px;
    }
    
    .hero-section {
        min-height: auto;
        padding: 8rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2.5rem !important;
    }
    
    .stat-badge {
        margin-bottom: 1rem;
    }
    
    .process-number {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .benefit-number {
        font-size: 2rem;
        min-width: 60px;
    }
    
    .contact-card {
        padding: 2rem;
    }
}

@media (max-width: 767px) {
    body {
        font-size: 15px;
    }
    
    .hero-title {
        font-size: 2rem !important;
    }
    
    .display-4 {
        font-size: 2rem !important;
    }
    
    .display-5 {
        font-size: 1.75rem !important;
    }
    
    .lead {
        font-size: 1.1rem !important;
    }
    
    .btn-lg {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .feature-card,
    .problem-card,
    .about-card {
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .navbar-nav .nav-link.btn {
        margin-top: 1rem;
        text-align: center;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 575px) {
    .contact-card {
        padding: 1.5rem;
    }
    
    .process-icon {
        font-size: 3rem;
    }
    
    .audience-icon {
        font-size: 2.5rem;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .navbar,
    .back-to-top,
    .scroll-indicator {
        display: none;
    }
    
    .section-padding {
        padding: 2rem 0;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* ===================================
   High Contrast Mode Support
   =================================== */
@media (prefers-contrast: high) {
    :root {
        --color-border: rgba(255, 255, 255, 0.3);
        --color-text-light: #e2e8f0;
    }
}

/* ===================================
   Reduced Motion Support
   =================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .floating-card {
        animation: none;
    }
    
    .scroll-indicator {
        animation: none;
    }
}