/* ========== ТЮРКОАЗ ТЕМА - МОДЕРЕН UX/UI ========== */

:root {
  /* Тюркоаз цветова палитра */
  --teal-50: #f0fdfa;
  --teal-100: #ccfbf1;
  --teal-200: #99f6e4;
  --teal-300: #5eead4;
  --teal-400: #2dd4bf;
  --teal-500: #14b8a6;
  --teal-600: #0d9488;
  --teal-700: #0f766e;
  --teal-800: #115e59;
  --teal-900: #134e4a;
  
  /* Основни цветове */
  --bg-body: #0a1628;
  --bg-surface: #0f1b2e;
  --bg-card: rgba(15, 27, 46, 0.6);
  --bg-card-hover: rgba(15, 27, 46, 0.8);
  --bg-header: rgba(10, 22, 40, 0.9);
  --border-subtle: rgba(20, 184, 166, 0.15);
  --border-accent: rgba(20, 184, 166, 0.4);
  
  /* Текст */
  --text-main: #e0f2fe;
  --text-secondary: #bae6fd;
  --text-muted: #7dd3fc;
  --text-accent: #14b8a6;
  
  /* Акцентни цветове */
  --accent: #14b8a6;
  --accent-hover: #2dd4bf;
  --accent-light: #5eead4;
  --accent-dark: #0d9488;
  --accent-soft: rgba(20, 184, 166, 0.2);
  --accent-glow: rgba(20, 184, 166, 0.4);
  
  /* Статус цветове */
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 24px rgba(20, 184, 166, 0.3);
  --shadow-glow-strong: 0 0 40px rgba(20, 184, 166, 0.5);
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
}

/* ========== RESET & BASE ========== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(20, 184, 166, 0.4) transparent;
}

html::-webkit-scrollbar {
  width: 10px;
}

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

html::-webkit-scrollbar-thumb {
  background: rgba(20, 184, 166, 0.4);
  border-radius: 5px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

html::-webkit-scrollbar-thumb:hover {
  background: rgba(20, 184, 166, 0.6);
}

body {
  font-family: var(--font-main);
  font-weight: var(--font-weight-normal);
  color: var(--text-main);
  background: linear-gradient(135deg, #0a1628 0%, #0f1b2e 25%, #0a1628 50%, #0d1f35 75%, #0a1628 100%);
  background-size: 400% 400%;
  animation: gradientShift 20s ease infinite;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ========== HEADER ========== */

header,
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--shadow-md);
}

.logo {
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.03em;
  font-size: 20px;
  background: linear-gradient(135deg, #14b8a6 0%, #2dd4bf 50%, #5eead4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  transition: all var(--transition-base);
}

.logo:hover {
  filter: brightness(1.2);
}

header a,
.app-header a {
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--transition-fast);
}

header a:hover,
.app-header a:hover {
  color: var(--accent-hover);
}

/* ========== LAYOUT ========== */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
  overflow-x: hidden;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-lg);
}

@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

/* ========== CARDS ========== */

.card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  transition: all var(--transition-smooth);
  overflow: hidden;
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  transform: translateY(-2px);
}

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

.card h2 {
  margin: 0 0 var(--spacing-lg);
  font-size: 24px;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card h2::before {
  content: '';
  width: 4px;
  height: 24px;
  background: linear-gradient(180deg, var(--accent), var(--accent-light));
  border-radius: var(--radius-full);
}

.card h3 {
  margin: var(--spacing-xl) 0 var(--spacing-md);
  font-size: 16px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.01em;
  color: var(--text-secondary);
}

/* ========== ТИПОГРАФИЯ ========== */

p {
  margin: var(--spacing-md) 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-main);
}

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

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
  text-decoration-color: var(--accent-hover);
  text-underline-offset: 3px;
}

/* ========== БУТОНИ ========== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
  color: #ffffff;
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.01em;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transition: all var(--transition-smooth);
  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, 0.25), transparent);
  transition: left 0.6s;
}

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

.btn:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow-strong);
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent-light) 100%);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm), var(--shadow-glow);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--border-accent);
  color: var(--accent);
  box-shadow: none;
  font-weight: var(--font-weight-medium);
}

.btn-outline:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-hover);
  box-shadow: var(--shadow-sm), 0 0 16px var(--accent-soft);
}

.btn-small {
  padding: 8px 16px;
  font-size: 13px;
}

/* ========== ФОРМИ ========== */

label {
  display: block;
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
}

label:first-child {
  margin-top: 0;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="number"],
input[type="url"],
input[type="datetime-local"],
textarea,
select {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-subtle);
  background: rgba(15, 27, 46, 0.8);
  color: var(--text-main);
  font-size: 14px;
  font-weight: var(--font-weight-normal);
  font-family: var(--font-main);
  outline: none;
  transition: all var(--transition-base);
  letter-spacing: -0.01em;
}

/* Date picker специфични стилове */
input[type="date"],
input[type="datetime-local"] {
  background: rgba(20, 184, 166, 0.1);
  border-color: var(--border-accent);
  color: var(--text-main);
}

input[type="date"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  filter: invert(1) brightness(2);
  opacity: 0.8;
  padding: 4px;
  margin-left: 8px;
}

input[type="date"]::-webkit-calendar-picker-indicator:hover,
input[type="datetime-local"]::-webkit-calendar-picker-indicator:hover {
  opacity: 1;
  filter: invert(1) brightness(2.5);
}

/* Firefox date picker */
input[type="date"]::-moz-calendar-picker-indicator,
input[type="datetime-local"]::-moz-calendar-picker-indicator {
  cursor: pointer;
  filter: invert(1) brightness(2);
  opacity: 0.8;
}

input[type="date"]:focus,
input[type="datetime-local"]:focus {
  background: rgba(20, 184, 166, 0.15);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow-glow);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  background: rgba(15, 27, 46, 0.95);
  box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow-glow);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

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

input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

/* ========== ALERTS ========== */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.alert::before {
  font-size: 18px;
}

.alert-ok {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border-left-color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-left-width: 4px;
}

.alert-ok::before {
  content: '✓';
  color: var(--success);
  font-weight: bold;
}

.alert-err {
  background: rgba(239, 68, 68, 0.15);
  color: #fecaca;
  border-left-color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-left-width: 4px;
}

.alert-err::before {
  content: '✕';
  color: var(--danger);
  font-weight: bold;
}

/* ========== ТАБЛИЦИ ========== */

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-top: var(--spacing-md);
  background: rgba(15, 27, 46, 0.4);
  border-radius: var(--radius-md);
  overflow: hidden;
}

th,
td {
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  font-weight: var(--font-weight-semibold);
  font-size: 12px;
  color: var(--text-secondary);
  background: rgba(20, 184, 166, 0.1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

tbody tr:nth-child(even) {
  background: rgba(15, 27, 46, 0.3);
}

tbody tr:hover {
  background: var(--accent-soft);
  cursor: pointer;
}

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

/* Responsive таблици */
@media (max-width: 700px) {
  table thead {
    display: none;
  }
  table,
  tbody,
  tr,
  td {
    display: block;
    width: 100%;
  }
  tr {
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    background: rgba(15, 27, 46, 0.6);
  }
  td {
    border-bottom: none;
    padding: var(--spacing-sm) var(--spacing-md);
    position: relative;
    padding-left: 40%;
  }
  td::before {
    content: attr(data-label);
    display: block;
    font-size: 11px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
    position: absolute;
    left: var(--spacing-md);
    top: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
}

/* ========== ГАЛЕРИЯ ========== */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--spacing-lg);
}

@media (max-width: 768px) {
  .gallery-grid {
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-md);
  }
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--border-subtle);
  background: rgba(15, 27, 46, 0.6);
  transition: all var(--transition-smooth);
  cursor: pointer;
}

.gallery-item:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--accent);
  transform: scale(1.02);
}

.gallery-item img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item .meta {
  padding: var(--spacing-md);
  font-size: 12px;
  color: var(--text-main);
  background: rgba(10, 22, 40, 0.8);
}

/* ========== NAVIGATION ========== */

.app-header {
  gap: var(--spacing-md);
}

.app-left,
.app-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.context-title {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: var(--spacing-md);
  border-left: 2px solid var(--border-subtle);
  font-weight: var(--font-weight-medium);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.nav-link {
  padding: 10px 18px;
  border-radius: var(--radius-md);
  color: var(--text-main);
  text-decoration: none;
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  border: 2px solid transparent;
  transition: all var(--transition-base);
  letter-spacing: -0.01em;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.nav-link:hover {
  text-decoration: none;
  background: var(--accent-soft);
  border-color: var(--border-accent);
  color: var(--accent-hover);
}

.nav-link:hover::after {
  width: calc(100% - 36px);
}

.nav-link.is-active {
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.2), rgba(45, 212, 191, 0.2));
  border-color: var(--accent);
  color: var(--accent-hover);
  box-shadow: var(--shadow-sm), 0 0 16px var(--accent-soft);
}

.nav-link.is-active::after {
  width: calc(100% - 36px);
}

.user-chip {
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
  font-weight: var(--font-weight-medium);
  color: var(--text-main);
  padding: 10px 16px;
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-full);
  background: rgba(15, 27, 46, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.user-chip:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-hover);
}

.app-footer {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-2xl);
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}

/* ========== HELPERS ========== */

.card--narrow {
  max-width: 500px;
  margin: var(--spacing-2xl) auto;
}

.actions-row {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
}

/* ========== ACCORDION ========== */

.acc {
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(15, 27, 46, 0.4);
  transition: all var(--transition-base);
  margin-bottom: var(--spacing-md);
}

.acc:hover {
  border-color: var(--border-accent);
  background: rgba(15, 27, 46, 0.6);
}

.acc-h {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: transparent;
  color: inherit;
  border: 0;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-base);
}

.acc-h:hover {
  background: var(--accent-soft);
}

.acc-h .acc-title {
  font-weight: var(--font-weight-bold);
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.acc-h .acc-sub {
  opacity: 0.7;
  font-size: 13px;
  font-weight: var(--font-weight-normal);
  color: var(--text-muted);
}

.acc-h .acc-ico {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  flex: 0 0 auto;
  transition: all var(--transition-base);
  color: var(--accent);
  font-size: 18px;
  font-weight: bold;
}

.acc.is-open .acc-ico {
  background: var(--accent);
  color: white;
  transform: rotate(180deg);
}

.acc-b {
  padding: var(--spacing-xl);
  display: none;
  background: rgba(10, 22, 40, 0.4);
  animation: fadeIn 0.3s ease-out;
}

.acc.is-open .acc-b {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== RESPONSIVE ========== */

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
  }
  
  .btn {
    padding: 10px 18px;
  }
  
  .app-header {
    padding: var(--spacing-md);
    flex-wrap: wrap;
  }
}

@media (max-width: 680px) {
  .app-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-md);
  }

  .app-left, .app-right {
    justify-content: space-between;
    width: 100%;
  }

  .nav {
    width: 100%;
    padding-bottom: var(--spacing-xs);
  }
  
  .nav-link {
    flex: 1 1 auto;
    text-align: center;
  }
}

/* ========== ДОПЪЛНИТЕЛНИ СТИЛОВЕ ========== */

.nav-link.is-disabled {
  opacity: 0.5;
  pointer-events: none;
  cursor: not-allowed;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
  background: rgba(15, 27, 46, 0.8);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  color: var(--accent-light);
}

/* Tree/D3 specific */
.tree-container {
  width: 100%;
  height: calc(100vh - 80px);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

.node circle {
  stroke: var(--bg-surface);
  stroke-width: 2px;
  cursor: pointer;
}

.node text {
  font-size: 12px;
  fill: var(--text-main);
  cursor: pointer;
}

.link {
  fill: none;
  stroke: var(--border-subtle);
  stroke-width: 2px;
}

.node-male circle {
  fill: var(--info);
}

.node-female circle {
  fill: #ec4899;
}

.node-unknown circle {
  fill: var(--text-muted);
}

/* Input file стил */
input[type="file"] {
  padding: var(--spacing-md);
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  background: rgba(15, 27, 46, 0.4);
  color: var(--text-main);
  cursor: pointer;
  transition: all var(--transition-base);
}

input[type="file"]:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* Family selector */
.family-select-wrap {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-right: var(--spacing-md);
}

.family-select {
  min-width: 220px;
  max-width: 280px;
}

@media (max-width: 900px) {
  .family-select {
    min-width: 160px;
    max-width: 200px;
  }
}