/* PESU Attendance Website Styles */

:root {
    --primary-color: #6366f1;
    --secondary-color: #4f46e5;
    --accent-color: #8b5cf6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --text-color: #374151;
    --border-color: #e5e7eb;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
    overflow-x: hidden;
}

/* Navigation Styles */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 0.5rem 0;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--secondary-color) !important;
}

.navbar-nav .nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    background: rgba(99, 102, 241, 0.1);
}

.navbar-nav .nav-link.active {
    color: white !important;
    background: var(--primary-color);
}

.navbar-toggler {
    border: none;
    padding: 0.25rem 0.5rem;
}

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

.cta-nav {
    background: var(--gradient-1);
    color: white !important;
    padding: 0.6rem 1.5rem !important;
    border-radius: 25px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-left: 1rem;
}

.cta-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 102, 241, 0.4);
    color: white !important;
    text-decoration: none;
}


/* Hero Section Styles */
.hero {
    background: var(--gradient-1);
    color: white;
    padding: 6rem 0 4rem;
    position: relative;
    overflow: hidden;
    min-height: 60vh;
    height: 700px;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" fill="white" opacity="0.1"><path d="M0,60 Q300,0 600,60 T1200,60 V120 H0 Z"/></svg>');
    background-size: cover;
    background-position: bottom;
}

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

.hero-sm {
    padding: 4rem 0 2rem;
    min-height: 40vh;
}

/* Page Header for sub-pages */
.page-header {
    background: var(--gradient-1);
    color: white;
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" fill="white" opacity="0.05"><circle cx="600" cy="60" r="40"/><circle cx="300" cy="80" r="20"/><circle cx="900" cy="40" r="30"/></svg>');
    background-size: cover;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    opacity: 0.8;
}

/* Chrome Web Store Button */
.cws-button {
    display: inline-flex;
    align-items: center;
    background: white;
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    margin-right: 1rem;
    margin-bottom: 1rem;
}

.cws-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    color: var(--primary-color);
    text-decoration: none;
}

.cws-button i {
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

/* Stats Section */
.stats {
    background: var(--light-color);
    padding: 3rem 0;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.8;
}

/* Features Section */
.features {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--dark-color);
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.feature-description {
    color: var(--text-color);
    line-height: 1.7;
}

/* How it Works Section */
.how-it-works {
    background: var(--light-color);
    padding: 4rem 0;
}

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

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.step-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.step-description {
    color: var(--text-color);
    opacity: 0.8;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 3rem 0 2rem;
}

.footer-links {
    list-style: none;
    margin-bottom: 2rem;
}

.footer-links li {
    display: inline-block;
    margin-right: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    /* border-top: 1px solid rgba(255,255,255,0.1); */
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: 2rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .cws-button {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
}

/* Contact Form Styles */
.contact-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 5rem 0;
}

.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 2rem;
}

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

.form-control {
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.8rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8fafc;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background: white;
    outline: none;
}

.form-control::placeholder {
    color: #94a3b8;
}

.btn-primary {
    background: var(--gradient-1);
    border: none;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 102, 241, 0.3);
    background: var(--gradient-1);
    border: none;
}

/* Content Section Styles */
.content-section {
    padding: 4rem 0;
    background: #f8fafc;
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.page-title {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-subtitle {
    color: #64748b;
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.section-heading {
    color: var(--dark-color);
    font-size: 1.8rem;
    font-weight: 600;
    margin: 3rem 0 1.5rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
    display: flex;
    align-items: center;
}

.section-heading i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Rating Stars */
.rating {
    color: #fbbf24;
    font-size: 1.2rem;
    margin: 0.5rem 0;
}

/* Badge */
.badge-chrome {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Floating Elements */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.floating-elements::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.floating-elements::after {
    content: '';
    position: absolute;
    top: 60%;
    right: 15%;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Contact Info Styles */
.contact-info {
    padding: 2rem 0;
}

.contact-item {
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.contact-item h5 {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--text-color);
    margin: 0;
}

/* FAQ Styles */
.faq-item {
    margin-bottom: 1.5rem;
    border: 1px solid #e5e7eb;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq-question {
    background: #f8fafc;
    padding: 1.5rem;
    font-weight: 600;
    color: var(--dark-color);
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #f1f5f9;
}

.faq-answer {
    padding: 1.5rem;
    display: none;
    line-height: 1.7;
    color: var(--text-color);
}

.faq-answer.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}