/* Main CSS File */

/* Language Learning Template - Main CSS */

/* GLOBAL DISABLE ALL ANIMATIONS AND TRANSITIONS */
*, *::before, *::after {
    animation-duration: 0s !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    transition-delay: 0s !important;
    transform: none !important;
}

/* CSS Variables - Color Palette */
:root {
    --primary-color: #4e96d1;
    --primary-light: #6da4db;
    --primary-dark: #39658d;
    --secondary-color: #3cb665;
    --secondary-light: #7bcc8e;
    --secondary-dark: #25963c;
    --accent-color: #eb6064;
    --accent-light: #fd8988;
    --accent-dark: #d05c55;
    --warning-color: #f5cd39;
    --warning-light: #ffcf70;
    --warning-dark: #facc11;
    --info-color: #199db5;
    --info-light: #4499b5;
    --info-dark: #027c9f;
    --light-bg: #F8F9FA;
    --dark-bg: #2b495b;
    --text-dark: #353535;
    --text-light: #6e6e6e;
    --text-white: #FFFFFF;
    --border-color: #e3e3e3;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 30px rgba(0,0,0,0.2);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--text-white);
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

h1 { font-size: 2.60rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.79rem; }
h4 { font-size: 1.57rem; }
h5 { font-size: 1.37rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Header & Navigation */
.navbar {
    background: var(--text-white);
    box-shadow: var(--shadow-light);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-medium);
}

.navbar-brand {
    font-size: 1.63rem;
    font-weight: 700;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark) !important;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
    position: relative;
}

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

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
}

/* Breadcrumbs */
.breadcrumb-nav {
    background: var(--light-bg);
    border-bottom: 1px solid var(--border-color);
}

/* Hero Section */
#hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

#hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.56rem;
    color: var(--text-white);
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.75rem 2rem;
    border-radius: 25px;
    border: none;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    /* transition: left 0.5s; */
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--primary-light));
    color: var(--text-white);
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    background: linear-gradient(45deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.card:hover::before {
    transform: scaleX(1);
}

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

.card-img-top {
    height: 200px;
    object-fit: cover;
    width: 100%;
    transition: transform 0.3s ease;
}

.card:hover .card-img-top {
    transform: scale(1.05);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.card-text {
    color: var(--text-light);
}

/* Sections */
section {
    padding: 4rem 0;
}

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

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light)) !important;
}

.bg-secondary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light)) !important;
}

/* Team Section */
.team-member img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border: 4px solid var(--text-white);
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.team-member:hover img {
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

/* FAQ Accordion */
.accordion-button {
    background: var(--light-bg);
    border: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.accordion-button:not(.collapsed) {
    background: var(--primary-color);
    color: var(--text-white);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border: none;
}

.accordion-item {
    border: none;
    margin-bottom: 0.60rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

/* Forms */
.form-control {
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(55, 120, 219, 0.25);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Validation Styles */
.is-valid {
    border-color: var(--secondary-color) !important;
    box-shadow: 0 0 0 0.2rem rgba(89, 183, 110, 0.25) !important;
}

.is-invalid {
    border-color: var(--accent-color) !important;
    box-shadow: 0 0 0 0.2rem rgba(249, 131, 110, 0.25) !important;
}

/* Footer */
footer {
    background: var(--dark-bg) !important;
    color: var(--text-white);
}

footer h5 {
    color: var(--text-white);
    margin-bottom: 1.62rem;
    font-weight: 600;
}

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

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

/* Contact Info */
.contact-info {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 15px;
    margin-top: 2rem;
}

.contact-info h5 {
    color: var(--primary-color);
    margin-bottom: 1.64rem;
}

.contact-info p {
    margin-bottom: 0.66rem;
    color: var(--text-dark);
}

/* Space Page */
#space {
    min-height: 70vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Animation Classes - DISABLED */
/*
.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.slide-up {
    transform: translateY(30px);
    opacity: 0;
    animation: slideUp 0.6s ease forwards;
}

@keyframes slideUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.animated {
    animation-fill-mode: both;
}
*/

/* Lazy Loading */
img.lozad {
    opacity: 0;
    /* transition: opacity 0.3s; */
}

img.lozad.loaded {
    opacity: 1;
}

/* Progress Bar */
#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    z-index: 9999;
    transition: width 0.3s ease;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border: none;
    box-shadow: var(--shadow-medium);
    background: linear-gradient(45deg, var(--primary-color), var(--primary-light));
    color: var(--text-white);
}

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

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    min-width: 300px;
    border-radius: 10px;
    box-shadow: var(--shadow-medium);
    transform: translateX(100%);
    transition: all 0.3s ease;
}

.notification.show {
    transform: translateX(0);
}

/* Feature Icons */
.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--text-white);
    font-size: 2rem;
    transition: all 0.3s ease;
}

.feature-icon:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

/* Stats Items */
.stats-item {
    text-align: center;
    padding: 2rem 1rem;
}

.stats-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.62rem;
    display: block;
}

.stats-label {
    color: var(--text-light);
    font-size: 1.22rem;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--secondary-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }

.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.64rem; }
.mb-5 { margin-bottom: 3rem; }
.py-5 { padding: 3rem 0; }

/* Responsive Images */
img {
    max-width: 100%;
    height: auto;
}

/* Gallery Images */
.gallery img {
    border-radius: 10px;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.gallery img:hover {
    transform: scale(1.05);
}

/* Focus States for Accessibility */
.btn:focus,
.form-control:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0f76dd;
        --secondary-color: #0d8e01;
        --text-dark: #000000;
        --text-light: #414141;
        --border-color: #6f6565;
    }
}

/* Skip Link */
.visually-hidden-focusable:not(:focus):not(:focus-within) {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* DISABLED: Loading animation */
/*
.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
*/

/* DISABLED: Spin and Pulse animations */
/*
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

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



/* Team Social Links - Square Style */
.team-social-links {
    margin-top: 18px;
    padding: 12px 0;
}

.social-icons-grid {
    display: flex;
    gap: 12px;
    justify-content: center;
    align-items: center;
}

.social-link {
    display: inline-flex;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-size: 17px;
    transition: all 0.3s ease;
    box-shadow: 0 3px 12px rgba(0,0,0,0.15);
    position: relative;
}

.social-link:hover {
    transform: translateY(-2px) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
    color: white;
}

.facebook-link {
    background: #1877f2;
    border: 2px solid #1877f2;
}

.facebook-link:hover {
    background: #166fe5;
    border-color: #166fe5;
}

.linkedin-link {
    background: #0a66c2;
    border: 2px solid #0a66c2;
}

.linkedin-link:hover {
    background: #0959aa;
    border-color: #0959aa;
}

.x-link {
    background: #000000;
    border: 2px solid #000000;
    position: relative;
}

.x-link::after {
    content: '✕';
    font-weight: bold;
    font-size: 18px;
}

.x-link:hover {
    background: #333333;
    border-color: #333333;
}

.x-link i {
    display: none;
}

@media (max-width: 768px) {
    .social-icons-grid {
        gap: 8px;
    }
    
    .social-link {
        width: 38px;
        height: 38px;
        font-size: 15px;
    }
}