/* Hibrary Landing Page - Modern Styles */

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #10b981;
    --secondary-hover: #059669;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

.my-auto {
    margin-top: auto;
    margin-bottom: auto;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Utility Classes */
.animate-fade-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fade-left {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fade-right {
    animation: fadeInRight 0.8s ease-out;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Typography */
.heading-xl {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
}

.heading-lg {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.heading-md {
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.3;
}

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

/* Navbar Toggler */
.navbar-toggler {
    border: none;
    padding: 4px 8px;
    background: none;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2833, 37, 41, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 1.5rem;
    height: 1.5rem;
}

/* Header */
.navbar-modern {
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.navbar-modern.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar-brand img {
    height: 40px;
    transition: transform 0.3s ease;
}

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

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
    left: 0;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../../media/hero-background.png') center/cover;
    opacity: 0.2;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    color: white;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 600px;
}

.btn-primary-modern {
    background: var(--primary-color);
    border: none;
    padding: 15px 30px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    color: white;
}

.btn-primary-modern:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-line-modern {
    background: var(--secondary-color);
    border: none;
    padding: 15px 30px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    color: white;
}

.btn-line-modern:hover {
    background: var(--secondary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-secondary-modern {
    background: transparent;
    border: 2px solid white;
    color: white;
    padding: 13px 28px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-secondary-modern:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.hero-visual {
    text-align: center;
}

.hero-visual img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

/* Floating Elements */
.floating-element {
    position: absolute;
    opacity: 0.1;
    pointer-events: none;
}

.floating-element.fe-1 {
    top: 10%;
    left: 5%;
    animation: float 8s ease-in-out infinite;
}

.floating-element.fe-2 {
    top: 20%;
    right: 10%;
    animation: float 6s ease-in-out infinite reverse;
}

.floating-element.fe-3 {
    bottom: 30%;
    left: 15%;
    animation: float 10s ease-in-out infinite;
}

/* Section Spacing */
.section-padding {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    margin-bottom: 1rem;
}

.section-title p {
    color: var(--text-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Features Grid */
.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    gap: 1.5rem;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0;
    color: white;
    font-size: 1.5rem;
    aspect-ratio: 1;
}

.feature-card h4 {
    margin-top: auto;
    margin-bottom: auto;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    margin: 0;
}

/* Testimonials */
.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    margin: 1rem;
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    object-fit: cover;
}

/* Pricing Cards */
.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Contact Form */
.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

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

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

.form-control-modern {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-control-modern:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-control-modern::placeholder {
    color: var(--text-light);
}

/* Social Proof */
.logo-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    opacity: 0.6;
}

.logo-grid img {
    height: 100px;
    filter: grayscale(100%);
    transition: all 0.3s ease;
}

.logo-grid img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* Footer */
.footer-modern {
    background: var(--text-dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

/* Scroll to Top */
.scroll-to-top {
    position: fixed;
    bottom: 35px;
    right: 110px;
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: var(--primary-hover);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .heading-xl {
        font-size: 2.5rem;
    }
    
    .heading-lg {
        font-size: 2rem;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    .hero-section {
        min-height: calc(80vh - 66px);
        text-align: center;
        margin-top: 66px;
    }
    
    .contact-form {
        padding: 2rem;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }

    .nav-item {
        text-align: right;
    }
}

/* Loading Animation */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid #f3f4f6;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Parallax Effect */
.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}