/* CodeLand Kids - Complete Design System */

:root {
    /* Գեղեցիկ գույներ */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-light: linear-gradient(135deg, #8b9aff 0%, #9b6fd4 100%);
    --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --warning-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --info-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --danger-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    /* Գունային պալիտրա */
    --color-primary: #667eea;
    --color-secondary: #764ba2;
    --color-success: #38ef7d;
    --color-info: #4facfe;
    --color-warning: #f5576c;
    --color-danger: #fa709a;
    --color-light: #f8f9fa;
    --color-dark: #2d3748;
    --color-text: #4a5568;
    --color-text-light: #718096;
    
    /* Ստվերներ */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.15);
    
    /* Անցումներ */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    
    /* Տառատեսակներ */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 0.9375rem; /* 15px */
    --font-size-md: 1rem;        /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

* {
    transition: var(--transition);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--primary-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    padding-bottom: 2rem;
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

/* Տառատեսակների չափեր */
h1 { font-size: var(--font-size-3xl); font-weight: 700; }
h2 { font-size: var(--font-size-2xl); font-weight: 600; }
h3 { font-size: var(--font-size-xl); font-weight: 600; }
h4 { font-size: var(--font-size-lg); font-weight: 600; }
h5 { font-size: var(--font-size-md); font-weight: 600; }
h6 { font-size: var(--font-size-base); font-weight: 600; }
p { font-size: var(--font-size-base); margin-bottom: var(--spacing-md); }
small { font-size: var(--font-size-sm); }

/* Navbar / Header */
.navbar {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    border-bottom: 2px solid rgba(102, 126, 234, 0.1);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    margin-bottom: 0 !important;
}

.navbar-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
}

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

.navbar-brand i {
    font-size: var(--font-size-2xl);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    border-radius: 8px;
    margin: 0 2px;
    padding: 8px 12px !important;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text) !important;
    transition: var(--transition-fast);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.nav-link i {
    font-size: var(--font-size-sm);
}

.nav-link:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--color-primary) !important;
    transform: translateY(-1px);
}

.navbar-nav {
    flex-wrap: wrap;
    align-items: center;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: white;
    border-radius: 2px;
}

.navbar-toggler {
    border: none;
    padding: var(--spacing-xs);
    font-size: var(--font-size-lg);
}

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

/* Search in navbar */
.navbar .input-group {
    max-width: 200px;
    flex-wrap: nowrap;
}

.navbar .container {
    max-width: 100%;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: visible;
}

.navbar-nav {
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    flex-wrap: nowrap;
}

.navbar-nav::-webkit-scrollbar {
    height: 4px;
}

.navbar-nav::-webkit-scrollbar-track {
    background: transparent;
}

.navbar-nav::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.3);
    border-radius: 2px;
}

.navbar .form-control-sm {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    border: 2px solid rgba(102, 126, 234, 0.2);
}

.navbar .form-control-sm:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
}

.navbar .btn-sm {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
}

/* Cards */
.card {
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-lg);
    border-top: 3px solid transparent;
}

.card:hover {
    border-top-color: var(--color-primary);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.2);
}

.card-header {
    border-bottom: 2px solid rgba(0,0,0,0.05);
    font-weight: 600;
    font-size: var(--font-size-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
    position: relative;
}

.card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    opacity: 0;
    transition: var(--transition);
}

.card:hover .card-header::before {
    opacity: 1;
}

.card-body {
    padding: var(--spacing-lg);
    font-size: var(--font-size-base);
}

.card-footer {
    border-top: 2px solid rgba(0,0,0,0.05);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(248, 249, 250, 0.5);
}

/* Buttons */
.btn {
    border-radius: 10px;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
    border: none;
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    line-height: 1.5;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

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

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

.btn-success {
    background: var(--success-gradient);
    color: white;
}

.btn-warning {
    background: var(--warning-gradient);
    color: white;
}

.btn-info {
    background: var(--info-gradient);
    color: white;
}

.btn-danger {
    background: var(--danger-gradient);
    color: white;
}

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

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
}

/* Progress Bars */
.progress {
    border-radius: 10px;
    overflow: hidden;
    background: rgba(0,0,0,0.05);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.progress-bar {
    transition: width 1s ease-in-out;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* Stat Cards */
.stat-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(102, 126, 234, 0.3);
}

.stat-card h1, .stat-card h2, .stat-card h3 {
    margin: 0;
    font-weight: 700;
    font-size: var(--font-size-2xl);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Badges */
.badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    font-weight: 500;
    font-size: var(--font-size-xs);
    line-height: 1.2;
}

.badge.rounded-pill {
    border-radius: 50px;
    padding: var(--spacing-xs) var(--spacing-md);
}

/* Forms */
.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid rgba(0,0,0,0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
    background: white;
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
    transform: translateY(-1px);
    outline: none;
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.form-text {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
}

.input-group-text {
    font-size: var(--font-size-sm);
    border-radius: 10px 0 0 10px;
    border: 2px solid rgba(0,0,0,0.1);
    background: rgba(102, 126, 234, 0.05);
}

/* Tables */
.table {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

.table thead {
    background: var(--primary-gradient);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.table thead th {
    padding: var(--spacing-md);
    border: none;
    text-transform: uppercase;
    font-size: var(--font-size-xs);
    letter-spacing: 0.5px;
}

.table tbody td {
    padding: var(--spacing-md);
    border-color: rgba(0, 0, 0, 0.05);
    font-size: var(--font-size-sm);
    vertical-align: middle;
}

.table tbody tr {
    transition: var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #6c757d;
}

.empty-state i {
    font-size: 4rem;
    opacity: 0.3;
    margin-bottom: 1rem;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s infinite;
}

/* Loading Spinner */
.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
}

/* Alerts */
.alert {
    border-radius: 12px;
    border: none;
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.alert i {
    font-size: var(--font-size-lg);
}

.alert strong {
    font-weight: 600;
    margin-right: var(--spacing-xs);
}

/* Modals */
.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 2px solid rgba(0,0,0,0.05);
    border-radius: 20px 20px 0 0;
}

.modal-footer {
    border-top: 2px solid rgba(0,0,0,0.05);
    border-radius: 0 0 20px 20px;
}

/* List Groups */
.list-group-item {
    border-radius: 10px;
    margin-bottom: 5px;
    border: 1px solid rgba(0,0,0,0.1);
    transition: var(--transition);
}

.list-group-item:hover {
    background: rgba(102, 126, 234, 0.05);
    transform: translateX(5px);
}

.list-group-item.active {
    background: var(--primary-gradient);
    border-color: transparent;
}

/* Text Colors */
.text-white {
    color: white !important;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.text-muted {
    color: var(--color-text-light) !important;
    font-size: var(--font-size-sm);
}

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

.text-success {
    color: var(--color-success) !important;
}

.text-info {
    color: var(--color-info) !important;
}

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

.text-danger {
    color: var(--color-danger) !important;
}

/* Spacing utilities */
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }
.mb-5 { margin-bottom: var(--spacing-xl) !important; }

.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }
.mt-5 { margin-top: var(--spacing-xl) !important; }

.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }
.p-5 { padding: var(--spacing-xl) !important; }

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 992px) {
    .navbar-brand {
        font-size: var(--font-size-lg);
    }
    
    .nav-link {
        font-size: var(--font-size-xs);
        padding: 5px 8px !important;
    }
    
    .navbar-nav {
        flex-wrap: wrap;
    }
    
    .card-header {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .card-body {
        padding: var(--spacing-md);
    }
    
    .navbar .input-group {
        max-width: 180px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: var(--font-size-sm);
    }
    
    h1 { font-size: var(--font-size-2xl); }
    h2 { font-size: var(--font-size-xl); }
    h3 { font-size: var(--font-size-lg); }
    h4 { font-size: var(--font-size-base); }
    
    .navbar {
        padding: var(--spacing-xs) 0;
    }
    
    .navbar-brand {
        font-size: var(--font-size-sm);
        white-space: nowrap;
    }
    
    .navbar-brand i {
        font-size: var(--font-size-base);
    }
    
    .navbar-nav {
        margin-top: var(--spacing-sm);
        flex-direction: column;
        width: 100%;
        max-height: 70vh;
        overflow-y: auto;
        overflow-x: hidden;
    }
    
    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm) !important;
        margin: 2px 0;
        border-radius: 8px;
        width: 100%;
        justify-content: flex-start;
        font-size: var(--font-size-xs);
    }
    
    .navbar .input-group {
        max-width: 100%;
        margin-top: var(--spacing-xs);
    }
    
    .card {
        border-radius: 12px;
        margin-bottom: var(--spacing-md);
    }
    
    .card-header {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }
    
    .card-body {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .btn {
        width: 100%;
        margin-bottom: var(--spacing-xs);
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .stat-card h1, .stat-card h2, .stat-card h3 {
        font-size: var(--font-size-xl);
    }
    
    .table {
        font-size: var(--font-size-xs);
    }
    
    .form-control, .form-select {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .navbar .input-group {
        max-width: 100%;
        margin-top: var(--spacing-sm);
    }
}

@media (max-width: 576px) {
    body {
        font-size: var(--font-size-xs);
        padding-bottom: var(--spacing-md);
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .card {
        border-radius: 10px;
    }
    
    .btn {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .navbar-brand {
        font-size: var(--font-size-sm);
    }
    
    .nav-link {
        font-size: var(--font-size-xs);
    }
    
    .card-header {
        font-size: var(--font-size-xs);
    }
    
    .card-body {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs);
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--info-gradient);
}

/* Code Editor */
.CodeMirror {
    border-radius: 10px;
    border: 2px solid rgba(0,0,0,0.1);
    font-size: 14px;
}

/* Notification Badge */
.position-relative .badge {
    font-size: 0.7rem;
    padding: 4px 8px;
    animation: pulse 2s infinite;
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* Message Bubbles */
.message-bubble {
    border-radius: 18px;
    padding: 12px 16px;
    max-width: 70%;
    word-wrap: break-word;
}

.message-bubble.sent {
    background: var(--primary-gradient);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.message-bubble.received {
    background: #f0f0f0;
    color: #333;
    margin-right: auto;
    border-bottom-left-radius: 4px;
}

/* Rating Badges */
.rating-excellent {
    background: var(--success-gradient);
    color: white;
}

.rating-good {
    background: var(--warning-gradient);
    color: white;
}

.rating-bad {
    background: var(--danger-gradient);
    color: white;
}

/* Course Cards */
.course-card {
    position: relative;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--primary-gradient);
}

/* Lesson Lock */
.lesson-locked {
    opacity: 0.6;
    position: relative;
}

.lesson-locked::after {
    content: '🔒';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    opacity: 0.5;
}

/* Smooth Transitions */
a, button, .card, .btn {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* List group improvements */
.list-group-item {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm) var(--spacing-md);
}

.list-group-item h6 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.list-group-item p {
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-xs);
}

.list-group-item small {
    font-size: var(--font-size-xs);
}

/* Input group improvements */
.input-group {
    font-size: var(--font-size-sm);
}

.input-group-text {
    font-size: var(--font-size-sm);
}

/* Dropdown improvements */
.dropdown-menu {
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    padding: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.dropdown-item {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--color-primary);
}

/* Pagination improvements */
.pagination {
    font-size: var(--font-size-sm);
}

.page-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    margin: 0 var(--spacing-xs);
    border: 2px solid rgba(0, 0, 0, 0.1);
    color: var(--color-text);
    transition: var(--transition-fast);
}

.page-link:hover {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

.page-item.active .page-link {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
}

/* Container improvements */
.container {
    max-width: 1200px;
    padding-left: 15px;
    padding-right: 15px;
}

/* Page headers */
h2.text-white {
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* Print Styles */
@media print {
    body {
        background: white;
    }
    
    .navbar, .btn, .no-print {
        display: none !important;
    }
}