/**
 * PolyGlot Studio - Main Stylesheet
 * Version 1.0
 */

/* ==========================================
   IMPORTS & FONTS
   ========================================== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+Georgian:wght@300;400;600;700&family=Noto+Sans+Georgian:wght@300;400;500;600;700&display=swap');

/* ==========================================
   CSS VARIABLES
   ========================================== */
:root {
    /* Colors */
    --primary: #2c3e50;
    --secondary: #34495e;
    --accent: #e74c3c;
    --warm: #f39c12;
    --success: #27ae60;
    --info: #3498db;
    --warning: #f39c12;
    --danger: #e74c3c;
    
    /* Backgrounds */
    --bg-cream: #faf8f3;
    --bg-paper: #ffffff;
    --bg-light: #f9f9f9;
    --bg-dark: #2c3e50;
    
    /* Text */
    --text-dark: #2c3e50;
    --text-gray: #7f8c8d;
    --text-light: #bdc3c7;
    
    /* Borders */
    --border: #e8e5db;
    --border-light: #ecf0f1;
    
    /* Shadows */
    --shadow: rgba(0, 0, 0, 0.08);
    --shadow-lg: rgba(0, 0, 0, 0.15);
    
    /* Fonts */
    --font-heading: 'Noto Serif Georgian', serif;
    --font-body: 'Noto Sans Georgian', sans-serif;
    
    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    --spacing-2xl: 50px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ==========================================
   RESET & BASE
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--bg-cream) 0%, #f5f2ea 100%);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--warm);
}

/* ==========================================
   LAYOUT
   ========================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

/* Main App Layout */
.app-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: var(--spacing-lg);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.app-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.app-logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.app-logo span {
    font-size: 1.8rem;
}

.app-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.app-nav a {
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.app-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.app-main {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

/* ==========================================
   CARDS
   ========================================== */
.card {
    background: var(--bg-paper);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 10px var(--shadow);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 8px 25px var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    border-bottom: 2px solid var(--border);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-size: 1.5rem;
    color: var(--primary);
    margin: 0;
}

.card-subtitle {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
}

.card-body {
    padding: var(--spacing-md) 0;
}

.card-footer {
    border-top: 1px solid var(--border);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 500;
    font-family: var(--font-body);
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    outline: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 5px 15px var(--shadow-lg);
    transform: translateY(-2px);
}

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

.btn-accent:hover:not(:disabled) {
    background: #c0392b;
}

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

.btn-success:hover:not(:disabled) {
    background: #229954;
}

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

.btn-warning:hover:not(:disabled) {
    background: #d68910;
}

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

.btn-danger:hover:not(:disabled) {
    background: #c0392b;
}

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

.btn-outline:hover:not(:disabled) {
    background: var(--primary);
    color: white;
}

.btn-sm {
    padding: 5px 15px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 1.125rem;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* ==========================================
   FORMS
   ========================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: var(--font-body);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(44, 62, 80, 0.1);
}

.form-control:disabled {
    background: var(--bg-light);
    cursor: not-allowed;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

.form-text {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-gray);
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* Input Groups */
.input-group {
    display: flex;
    align-items: stretch;
}

.input-group .form-control {
    border-radius: 0;
}

.input-group .form-control:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.input-group .form-control:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.input-group-prepend,
.input-group-append {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    background: var(--bg-light);
    border: 2px solid var(--border);
    color: var(--text-gray);
    font-weight: 500;
}

.input-group-prepend {
    border-right: none;
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.input-group-append {
    border-left: none;
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

/* ==========================================
   GRID SYSTEM
   ========================================== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -1);
}

.col {
    flex: 1;
    padding: 0 var(--spacing-md);
}

.col-1 { flex: 0 0 8.333%; max-width: 8.333%; padding: 0 var(--spacing-md); }
.col-2 { flex: 0 0 16.666%; max-width: 16.666%; padding: 0 var(--spacing-md); }
.col-3 { flex: 0 0 25%; max-width: 25%; padding: 0 var(--spacing-md); }
.col-4 { flex: 0 0 33.333%; max-width: 33.333%; padding: 0 var(--spacing-md); }
.col-5 { flex: 0 0 41.666%; max-width: 41.666%; padding: 0 var(--spacing-md); }
.col-6 { flex: 0 0 50%; max-width: 50%; padding: 0 var(--spacing-md); }
.col-7 { flex: 0 0 58.333%; max-width: 58.333%; padding: 0 var(--spacing-md); }
.col-8 { flex: 0 0 66.666%; max-width: 66.666%; padding: 0 var(--spacing-md); }
.col-9 { flex: 0 0 75%; max-width: 75%; padding: 0 var(--spacing-md); }
.col-10 { flex: 0 0 83.333%; max-width: 83.333%; padding: 0 var(--spacing-md); }
.col-11 { flex: 0 0 91.666%; max-width: 91.666%; padding: 0 var(--spacing-md); }
.col-12 { flex: 0 0 100%; max-width: 100%; padding: 0 var(--spacing-md); }

/* ==========================================
   UTILITIES
   ========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-gray { color: var(--text-gray); }

.bg-primary { background: var(--primary); }
.bg-accent { background: var(--accent); }
.bg-light { background: var(--bg-light); }
.bg-white { background: white; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-block { display: inline-block !important; }

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-column {
    flex-direction: column;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Spacing utilities */
.m-0 { margin: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

/* ==========================================
   ALERTS & NOTIFICATIONS
   ========================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
}

.alert-success {
    background: #d5f4e6;
    border-color: var(--success);
    color: #1e7e34;
}

.alert-info {
    background: #d1ecf1;
    border-color: var(--info);
    color: #0c5460;
}

.alert-warning {
    background: #fff3cd;
    border-color: var(--warning);
    color: #856404;
}

.alert-danger {
    background: #f8d7da;
    border-color: var(--danger);
    color: #721c24;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 5px 20px var(--shadow-lg);
    min-width: 300px;
    animation: slideIn 0.3s ease;
    border-left: 4px solid;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ==========================================
   MODAL
   ========================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9000;
    opacity: 0;
    animation: fadeIn 0.3s ease forwards;
}

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

.modal {
    background: white;
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.5rem;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-gray);
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

/* ==========================================
   LOADING SPINNER
   ========================================== */
.spinner {
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
    .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
    .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .app-header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .app-nav {
        width: 100%;
        justify-content: center;
    }
}