/* ===================================
   Prakashmuni School - Custom Styles
   Author: Custom Design
   Version: 1.0
   =================================== */

/* === ROOT VARIABLES === */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --transition-speed: 0.3s;
}

/* === GLOBAL STYLES === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

.display-1, .display-2, .display-3, .display-4 {
    font-weight: 700;
}

/* === NAVIGATION === */
.navbar {
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-speed) ease;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.3rem;
    transition: transform var(--transition-speed) ease;
}

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

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: all var(--transition-speed) ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: #fff;
    transition: width var(--transition-speed) ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 70%;
}

.dropdown-menu {
    border: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border-radius: 0.5rem;
    margin-top: 0.5rem;
}

.dropdown-item {
    padding: 0.7rem 1.5rem;
    transition: all var(--transition-speed) ease;
}

.dropdown-item:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateX(5px);
}

/* === HERO SECTION === */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 60vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-section::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 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,213.3C672,192,768,128,864,128C960,128,1056,192,1152,197.3C1248,203,1344,149,1392,122.7L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') bottom center no-repeat;
    background-size: cover;
}

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

.min-vh-50 {
    min-height: 50vh;
}

/* === PAGE HEADER === */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
}

/* === CARDS === */
.card {
    transition: all var(--transition-speed) ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2) !important;
}

.card-img-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* === BUTTONS === */
.btn {
    padding: 0.6rem 1.5rem;
    font-weight: 500;
    transition: all var(--transition-speed) ease;
    border-radius: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-lg {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
}

/* === ICON CIRCLES === */
.icon-circle {
    transition: all var(--transition-speed) ease;
}

.card:hover .icon-circle {
    transform: scale(1.1) rotate(5deg);
}

/* === STATS SECTION === */
.stat-item {
    transition: all var(--transition-speed) ease;
}

.stat-item:hover {
    transform: scale(1.1);
}

/* === FOOTER === */
footer a {
    transition: all var(--transition-speed) ease;
}

footer a:hover {
    color: white !important;
    transform: translateX(5px);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: all var(--transition-speed) ease;
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px) scale(1.1);
}

/* === TIMELINE === */
.timeline-content {
    position: relative;
    padding-left: 2rem;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary-color), var(--success-color));
}

/* === FORMS === */
.form-control,
.form-select {
    border-radius: 0.5rem;
    padding: 0.7rem 1rem;
    border: 2px solid #e0e0e0;
    transition: all var(--transition-speed) ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #555;
}

/* === ALERTS === */
.alert {
    border-radius: 0.5rem;
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* === UTILITY CLASSES === */
.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.text-shadow {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.shadow-lg {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;
}

/* === RESPONSIVE ADJUSTMENTS === */
@media (max-width: 768px) {
    .hero-section {
        min-height: 40vh;
    }
    
    .display-3 {
        font-size: 2.5rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    .stat-item h3 {
        font-size: 2rem;
    }
    
    .timeline-content {
        padding-left: 1rem;
    }
}

@media (max-width: 576px) {
    .display-3 {
        font-size: 2rem;
    }
    
    .display-4 {
        font-size: 1.5rem;
    }
    
    .btn-lg {
        padding: 0.6rem 1.5rem;
        font-size: 1rem;
    }
}

/* === SCROLL TO TOP BUTTON === */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.scroll-to-top:hover {
    background: #0b5ed7;
    transform: translateY(-5px);
}

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

/* === LOADING ANIMATION === */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s ease-in-out infinite;
}

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

/* === PRINT STYLES === */
@media print {
    .navbar,
    footer,
    .btn,
    .social-links {
        display: none;
    }
    
    .card {
        break-inside: avoid;
    }
}

/* === ACCESSIBILITY === */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

/* === SMOOTH TRANSITIONS === */
* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* === CUSTOM SCROLLBAR === */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0b5ed7;
}