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

/* Root Variables */
:root {
    --primary-color: #0d6efd;
    --primary-dark: #0a58ca;
    --secondary-color: #6c757d;
    --success-color: #25d366;
    --warning-color: #ffc107;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --white: #ffffff;
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    --font-heading: 'Lato', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    color: var(--dark-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
}

/* Navigation */
.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.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: var(--warning-color) !important;
}

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

/* Hero Section */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    background-image: 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="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
    background-repeat: no-repeat;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 110, 253, 0.1);
    z-index: 1;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    font-size: 2rem;
    animation: bounce 2s infinite;
    z-index: 2;
}

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

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-in;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-in 0.3s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-in 0.6s both;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1s ease-in 0.9s both;
}

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

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.feature-box {
    background: var(--white);
    border-radius: 10px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* Course Cards */
.course-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    height: 100%;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.course-icon {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.course-detail-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.course-detail-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.course-icon-large {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

/* Page Header */
.page-header {
    padding: 100px 0 60px;
    margin-top: 76px;
}

/* Buttons */
.btn {
    border-radius: 5px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Floating Buttons */
.floating-btn {
    position: fixed;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    text-decoration: none;
    bottom: 20px;
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    color: var(--white);
}

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

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

/* Contact Panel */
.contact-panel {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 320px;
    max-width: 90vw;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    z-index: 999;
    transform: translateX(400px);
    transition: transform 0.4s ease;
    border: 1px solid #e9ecef;
}

.contact-panel.show {
    transform: translateX(0);
}

.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;
}

.contact-panel-header h5 {
    margin: 0;
    color: var(--white);
}

.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: 1rem;
}

.contact-info {
    font-size: 0.9rem;
}

.contact-info a {
    color: var(--primary-color);
}

/* Contact Form */
.contact-form-card,
.contact-info-card {
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.contact-item-detail {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e9ecef;
}

.contact-item-detail:last-child {
    border-bottom: none;
}

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

/* Map Container */
.map-container {
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.map-container iframe {
    display: block;
    width: 100%;
    border: none;
}

/* About Image Box */
.about-image-box {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.about-image-box i {
    color: var(--white);
}

/* Value Items */
.value-item {
    transition: all 0.3s ease;
}

.value-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

footer a {
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
        padding-top: 100px;
    }

    .display-3 {
        font-size: 2rem;
    }

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

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

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

    .floating-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        bottom: 15px;
    }

    .floating-btn-whatsapp {
        left: 15px;
    }

    .floating-btn-call {
        right: 15px;
    }

    .contact-panel {
        width: 90vw;
        right: 5vw;
        bottom: 80px;
    }

    .page-header {
        padding: 80px 0 40px;
    }

    .hero-buttons .btn {
        width: 100%;
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }

    .contact-panel {
        width: 95vw;
        right: 2.5vw;
    }
}

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

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

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

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

.shadow {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

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

/* Print Styles */
@media print {
    .floating-btn,
    .contact-panel,
    .navbar {
        display: none !important;
    }
}