/*
 * Каравай-СВ Premium Design System
 * Version: 3.0 - Luxury Edition 2025
 *
 * Color Palette: Aurora Noir
 * - Deep space backgrounds
 * - Luminous gradient accents
 * - Glassmorphism surfaces
 * - Neomorphic depth
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================
   CSS CUSTOM PROPERTIES - DESIGN TOKENS
   ============================================ */
:root {
    /* === PREMIUM COLOR SYSTEM === */

    /* Backgrounds - Deep Space */
    --color-bg-void: #04040a;
    --color-bg-deep: #07070f;
    --color-bg-base: #0a0a14;
    --color-bg-elevated: #0d0d18;
    --color-bg-surface: #10101c;

    /* Glass Surfaces */
    --color-glass: rgba(255, 255, 255, 0.02);
    --color-glass-hover: rgba(255, 255, 255, 0.04);
    --color-glass-active: rgba(255, 255, 255, 0.06);
    --color-glass-border: rgba(255, 255, 255, 0.06);
    --color-glass-border-hover: rgba(255, 255, 255, 0.1);

    /* Primary Gradient - Aurora */
    --gradient-aurora: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f97316 100%);
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    --gradient-secondary: linear-gradient(135deg, #ec4899 0%, #f97316 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
    --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #fbbf24 50%, #f59e0b 100%);

    /* Accent Colors - Neon */
    --color-primary: #8b5cf6;
    --color-primary-light: #a78bfa;
    --color-primary-glow: rgba(139, 92, 246, 0.4);

    --color-secondary: #06b6d4;
    --color-secondary-light: #22d3ee;
    --color-secondary-glow: rgba(6, 182, 212, 0.4);

    --color-accent: #f472b6;
    --color-accent-light: #f9a8d4;
    --color-accent-glow: rgba(244, 114, 182, 0.4);

    /* Semantic Colors */
    --color-success: #10b981;
    --color-success-glow: rgba(16, 185, 129, 0.3);
    --color-warning: #f59e0b;
    --color-warning-glow: rgba(245, 158, 11, 0.3);
    --color-danger: #ef4444;
    --color-danger-glow: rgba(239, 68, 68, 0.3);
    --color-info: #3b82f6;
    --color-info-glow: rgba(59, 130, 246, 0.3);

    /* Text Colors */
    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #94a3b8;
    --color-text-muted: #64748b;
    --color-text-disabled: #475569;

    /* Borders */
    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(255, 255, 255, 0.12);
    --color-border-focus: rgba(139, 92, 246, 0.5);

    /* Legacy compatibility */
    --color-bg-main: var(--color-bg-base);
    --color-bg-card: var(--color-bg-surface);
    --color-bg-card-hover: var(--color-bg-elevated);
    --color-bg-input: var(--color-bg-deep);
    --color-warning-bg: rgba(245, 158, 11, 0.15);
    --color-danger-bg: rgba(239, 68, 68, 0.15);
    --color-success-bg: rgba(16, 185, 129, 0.15);

    /* === EFFECTS === */
    --blur-glass: blur(20px);
    --blur-modal: blur(40px);

    --shadow-glow-primary: 0 0 40px rgba(139, 92, 246, 0.15);
    --shadow-glow-secondary: 0 0 40px rgba(6, 182, 212, 0.15);
    --shadow-glow-accent: 0 0 40px rgba(244, 114, 182, 0.15);

    --shadow-card:
        0 4px 6px -1px rgba(0, 0, 0, 0.3),
        0 2px 4px -2px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 0 rgba(255, 255, 255, 0.03);

    --shadow-elevated:
        0 20px 25px -5px rgba(0, 0, 0, 0.4),
        0 8px 10px -6px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 0 rgba(255, 255, 255, 0.05);

    --shadow-float:
        0 25px 50px -12px rgba(0, 0, 0, 0.5),
        0 0 60px rgba(139, 92, 246, 0.1);

    --shadow-lg: var(--shadow-elevated);

    /* === SPACING & SIZING === */
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-3xl: 32px;
    --radius-full: 9999px;

    /* === TYPOGRAPHY === */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Monaco', monospace;

    /* === TRANSITIONS === */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* === LAYOUT === */
    --sidebar-width: 280px;
    --header-height: 72px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg-void);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    padding-left: var(--sidebar-width);
}

@media (max-width: 1024px) {
    body {
        padding-left: 0;
        padding-top: 64px;
    }
}

/* Aurora Background Effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% -20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 0%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 50% 100%, rgba(244, 114, 182, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

::selection {
    background: rgba(139, 92, 246, 0.3);
    color: var(--color-text-primary);
}

/* ============================================
   SCROLLBAR - PREMIUM
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
    background-clip: padding-box;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

/* ============================================
   LAYOUT
   ============================================ */
.page-wrapper {
    display: flex;
    min-height: 100vh;
}

.page-content {
    flex: 1;
    min-height: 100vh;
}

/* ============================================
   GLASS CARDS - PREMIUM
   ============================================ */
.card {
    background: var(--color-glass);
    backdrop-filter: var(--blur-glass);
    -webkit-backdrop-filter: var(--blur-glass);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 100%);
}

.card:hover {
    background: var(--color-glass-hover);
    border-color: var(--color-glass-border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-elevated);
}

/* Card Variants */
.card-glow-primary {
    box-shadow: var(--shadow-card), var(--shadow-glow-primary);
}

.card-glow-secondary {
    box-shadow: var(--shadow-card), var(--shadow-glow-secondary);
}

.card-glow-accent {
    box-shadow: var(--shadow-card), var(--shadow-glow-accent);
}

.card-gradient {
    background: var(--gradient-primary);
    border: none;
}

.card-gradient .card-title,
.card-gradient .card-value {
    color: white;
}

/* ============================================
   BUTTONS - PREMIUM
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent);
    transition: left var(--transition-slow);
}

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

/* Primary Button - Gradient */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

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

/* Secondary Button - Glass */
.btn-secondary {
    background: var(--color-glass);
    backdrop-filter: var(--blur-glass);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-glass-hover);
    border-color: var(--color-border-hover);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    background: var(--color-glass);
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

/* Success Button */
.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 4px 15px var(--color-success-glow);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--color-success-glow);
}

/* Danger Button */
.btn-danger {
    background: var(--gradient-danger);
    color: white;
    box-shadow: 0 4px 15px var(--color-danger-glow);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--color-danger-glow);
}

/* Gold/Premium Button */
.btn-gold {
    background: var(--gradient-gold);
    color: #1a1a2e;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

/* Button Sizes */
.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: var(--radius-md);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    border-radius: var(--radius-xl);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ============================================
   FORM CONTROLS - PREMIUM
   ============================================ */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

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

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--color-text-primary);
    background: var(--color-glass);
    backdrop-filter: var(--blur-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

.form-control:hover {
    border-color: var(--color-border-hover);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
    background: var(--color-glass-active);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 18px;
    padding-right: 48px;
    cursor: pointer;
}

select.form-control option {
    background-color: #1a1a2e;
    color: #f8fafc;
    padding: 12px 16px;
}

select.form-control option:hover,
select.form-control option:checked {
    background-color: #8b5cf6;
    color: #ffffff;
}

.form-hint {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--color-text-muted);
}

/* Checkbox Premium */
.form-check {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    appearance: none;
    width: 22px;
    height: 22px;
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.form-check input[type="checkbox"]:checked {
    background: var(--gradient-primary);
    border-color: var(--color-primary);
}

.form-check input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 8px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.form-check label {
    font-size: 14px;
    color: var(--color-text-secondary);
    cursor: pointer;
}

/* ============================================
   TABLE - PREMIUM
   ============================================ */
.table-container {
    background: var(--color-glass);
    backdrop-filter: var(--blur-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.table-scroll {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    padding: 16px 20px;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
}

.data-table td {
    padding: 16px 20px;
    font-size: 14px;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

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

.data-table tbody tr:hover {
    background: rgba(139, 92, 246, 0.05);
}

.data-table tbody tr:hover td {
    color: var(--color-text-primary);
}

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

/* ============================================
   MODAL - PREMIUM GLASS
   ============================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: var(--blur-modal);
    -webkit-backdrop-filter: var(--blur-modal);
    z-index: 1000;
    padding: 24px;
    overflow-y: auto;
}

.modal-overlay.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-dialog {
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-float);
    width: 100%;
    max-width: 560px;
    margin: 48px auto;
    animation: slideUp 0.3s var(--transition-spring);
    position: relative;
    overflow: hidden;
}

.modal-dialog::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(139, 92, 246, 0.5) 50%,
        transparent 100%);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px;
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.modal-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.modal-close:hover {
    background: var(--color-glass-hover);
    color: var(--color-text-primary);
    border-color: var(--color-border-hover);
}

.modal-body {
    padding: 28px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 28px;
    border-top: 1px solid var(--color-border);
    background: rgba(0, 0, 0, 0.2);
}

/* ============================================
   ALERTS - PREMIUM
   ============================================ */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    font-size: 14px;
    margin-bottom: 24px;
    border: 1px solid;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--color-success);
}

.alert-danger, .alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--color-danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: var(--color-warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: var(--color-info);
}

/* ============================================
   BADGES - PREMIUM
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-primary {
    background: rgba(139, 92, 246, 0.15);
    color: var(--color-primary-light);
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

.badge-info {
    background: rgba(6, 182, 212, 0.15);
    color: var(--color-secondary);
}

/* Status dot */
.badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ============================================
   LOADING - PREMIUM
   ============================================ */
.loading {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 64px;
    gap: 20px;
}

.loading.active {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        transparent 0deg 90deg,
        var(--color-primary) 90deg 180deg,
        var(--color-secondary) 180deg 270deg,
        var(--color-accent) 270deg 360deg
    );
    animation: spin 1s linear infinite;
    position: relative;
}

.spinner::before {
    content: '';
    position: absolute;
    inset: 4px;
    background: var(--color-bg-base);
    border-radius: 50%;
}

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

.loading p {
    color: var(--color-text-muted);
    font-size: 14px;
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 40px;
    text-align: center;
}

.empty-state svg {
    width: 80px;
    height: 80px;
    stroke: var(--color-text-muted);
    margin-bottom: 24px;
    opacity: 0.5;
}

.empty-state p {
    color: var(--color-text-muted);
    font-size: 16px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-primary { color: var(--color-primary-light); }
.text-secondary { color: var(--color-secondary-light); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-muted { color: var(--color-text-muted); }

.bg-gradient-primary { background: var(--gradient-primary); }
.bg-gradient-secondary { background: var(--gradient-secondary); }
.bg-gradient-success { background: var(--gradient-success); }

.glow-primary { box-shadow: var(--shadow-glow-primary); }
.glow-secondary { box-shadow: var(--shadow-glow-secondary); }
.glow-accent { box-shadow: var(--shadow-glow-accent); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 0px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .btn {
        padding: 10px 20px;
    }

    .modal-dialog {
        margin: 16px;
        border-radius: var(--radius-xl);
    }
}