/* ============================================
   Rahul Computer Classes - Custom Styles
   ============================================ */

/* Root Variables */
:root {
    --primary-color: #0d6efd;
    --primary-dark: #0a58ca;
    --secondary-color: #6c757d;
    --success-color: #25d366;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Roboto', 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #333;
    padding-top: 76px; /* Account for fixed navbar */
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Lato', 'Open Sans', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

/* Navigation */
.navbar {
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

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

.navbar-nav .nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

.navbar-nav .nav-link.active {
    color: #fff !important;
    font-weight: 600;
}

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

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 110, 253, 0.7);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.8) 0%, rgba(10, 88, 202, 0.9) 100%);
    z-index: 1;
}

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

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

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

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

.animate-fade-in-delay-2 {
    animation: fadeIn 1.2s ease-out 0.4s both;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1.4s ease-out 0.6s both;
}

/* Page Header */
.page-header {
    padding: 3rem 0;
    margin-top: 76px;
}

/* Feature Cards */
.feature-card {
    background: var(--white);
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

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

.feature-icon {
    color: var(--primary-color);
}

.feature-icon-large {
    color: var(--primary-color);
}

/* Course Cards */
.course-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    border-radius: 10px;
}

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

.course-icon {
    color: var(--primary-color);
}

.course-icon-large {
    color: var(--primary-color);
}

.course-detail-card {
    border: none;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

/* Buttons */
.btn {
    border-radius: 5px;
    font-weight: 500;
    padding: 0.6rem 1.5rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

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

/* Floating Buttons */
.float-whatsapp,
.float-call {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--white);
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.float-whatsapp {
    left: 20px;
    background-color: var(--success-color);
}

.float-call {
    right: 20px;
    background-color: var(--primary-color);
}

.float-whatsapp:hover,
.float-call:hover {
    transform: scale(1.1);
    color: var(--white);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Contact Panel */
.contact-panel {
    position: fixed;
    right: -350px;
    top: 50%;
    transform: translateY(-50%);
    width: 320px;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: 10px;
    z-index: 999;
    transition: right 0.4s ease, opacity 0.4s ease;
    max-height: 80vh;
    overflow-y: auto;
    opacity: 0;
}

.contact-panel.show {
    right: 20px;
    opacity: 1;
    animation: slideInRight 0.4s ease;
}

@keyframes slideInRight {
    from {
        right: -350px;
        opacity: 0;
    }
    to {
        right: 20px;
        opacity: 1;
    }
}

.contact-panel-header {
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem;
    border-radius: 10px 10px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-close-panel {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.3s ease;
}

.btn-close-panel:hover {
    background: rgba(255, 255, 255, 0.2);
}

.contact-panel-body {
    padding: 1.5rem;
}

.contact-item {
    margin-bottom: 0.5rem;
}

/* Contact Info */
.contact-info-item {
    margin-bottom: 2rem;
}

.contact-icon {
    min-width: 50px;
}

/* Map Container */
.map-container {
    border-radius: 10px;
    overflow: hidden;
}

.map-container iframe {
    display: block;
    width: 100%;
}

/* About Page */
.about-image-placeholder {
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.about-feature {
    background: var(--white);
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.values-list .value-item {
    padding: 1rem;
    background: var(--white);
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--primary-color);
}

/* Footer */
footer {
    margin-top: auto;
}

footer a {
    transition: color 0.3s ease;
}

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

/* Form Styles */
.form-control,
.form-select {
    border-radius: 5px;
    border: 1px solid #ced4da;
    padding: 0.75rem;
    transition: border-color 0.3s ease, box-shadow 0.3s 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);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .hero-section .lead {
        font-size: 1rem;
    }

    .float-whatsapp,
    .float-call {
        width: 50px;
        height: 50px;
        font-size: 20px;
        bottom: 15px;
    }

    .float-whatsapp {
        left: 15px;
    }

    .float-call {
        right: 15px;
    }

    .contact-panel {
        width: 90%;
        right: -100%;
        max-width: 320px;
    }

    .contact-panel.show {
        right: 5%;
    }

    .page-header {
        padding: 2rem 0;
    }

    .display-4 {
        font-size: 2rem;
    }

    .display-5 {
        font-size: 1.75rem;
    }

    .display-6 {
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    body {
        padding-top: 70px;
    }

    .navbar-brand {
        font-size: 1.2rem;
    }

    .hero-section h1 {
        font-size: 1.75rem;
    }

    .btn-lg {
        padding: 0.6rem 1.5rem;
        font-size: 1rem;
    }
}

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

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

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

/* Utility Classes */
.text-primary {
    color: var(--primary-color) !important;
}

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

.shadow-sm {
    box-shadow: var(--shadow) !important;
}

.shadow {
    box-shadow: var(--shadow-lg) !important;
}

/* 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-width: 0;
}

/* Print Styles */
@media print {
    .float-whatsapp,
    .float-call,
    .contact-panel {
        display: none;
    }
}