/**
 * Startmining Admin Panel - Design System
 * Based on Startmining Simulator design
 */

/* ========================================
   CSS VARIABLES - DESIGN TOKENS
   ======================================== */

:root {
  /* Brand Colors */
  --brand-green: #00bc82;
  --brand-green-soft: #32d8a1;
  --brand-deep: #071c2f;
  --brand-ink: #112b45;
  --brand-stone: #e3ebf0;
  --brand-fog: #f3f5f8;

  /* Light Theme (default) */
  --bg-color: var(--brand-fog);
  --container-bg: #ffffff;
  --text-color: #112b45;
  --text-secondary: #4f677a;
  --text-muted: #6b7c8a;
  --card-bg: #ffffff;
  --border-color: #d4dde4;
  --shadow-color: rgba(7, 28, 47, 0.08);
  --primary-color: var(--brand-green);
  --primary-hover: #00a572;
  --accent: var(--brand-green);
  --hover-color: rgba(0, 188, 130, 0.12);
  --bg-hover: rgba(0, 0, 0, 0.04);
  --input-bg: #ffffff;
  --chip-bg: rgba(0, 188, 130, 0.09);
  --chip-text: var(--brand-ink);

  /* Status Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-color: #050d16;
  --container-bg: #091523;
  --text-color: #f3f7fb;
  --text-secondary: #9fb5c8;
  --text-muted: #8a9db0;
  --card-bg: #0f1e30;
  --border-color: rgba(243, 247, 251, 0.12);
  --shadow-color: rgba(3, 9, 16, 0.6);
  --primary-color: #2bd6a0;
  --primary-hover: #25c090;
  --accent: #2bd6a0;
  --hover-color: rgba(43, 214, 160, 0.18);
  --bg-hover: rgba(255, 255, 255, 0.06);
  --input-bg: #132338;
  --chip-bg: rgba(43, 214, 160, 0.18);
  --chip-text: #cbf4e8;
  --brand-green-soft: #2bd6a0;
}

/* ========================================
   BASE STYLES
   ======================================== */

* {
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden;
}

body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  margin: 0;
  padding: 64px 24px 24px 24px;
  background: radial-gradient(circle at 10% 20%, rgba(0, 188, 130, 0.12), transparent 45%),
              radial-gradient(circle at 90% 10%, rgba(17, 43, 69, 0.16), transparent 55%),
              var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
  min-height: 100vh;
  font-size: 15px;
}

[data-theme="dark"] body {
  background: radial-gradient(circle at 10% 20%, rgba(43, 214, 160, 0.12), transparent 45%),
              radial-gradient(circle at 85% 0%, rgba(6, 30, 51, 0.55), transparent 60%),
              var(--bg-color);
}

/* ========================================
   APP SHELL (HEADER)
   ======================================== */

.app-shell {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .app-shell {
  background: rgba(9, 21, 35, 0.92);
}

.app-shell__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 16px 0;
  max-width: 1400px;
  margin: 0 auto;
}

.app-shell__left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.app-shell__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.app-shell__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.app-shell__logo img {
  height: 32px;
  width: auto;
}

.app-shell__logo .logo-dark {
  display: none;
}

[data-theme="dark"] .app-shell__logo .logo-light {
  display: none;
}

[data-theme="dark"] .app-shell__logo .logo-dark {
  display: block;
}

.app-shell__separator {
  color: var(--text-muted);
  font-size: 1.1rem;
  user-select: none;
}

.app-shell__title {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-color);
}

.app-shell__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.app-shell__link {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-color);
  text-decoration: none;
  background: transparent;
  border: 1px solid transparent;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.app-shell__link:hover {
  background: var(--hover-color);
}

.app-shell__link--active {
  background: var(--chip-bg);
  border-color: var(--primary-color);
  color: var(--chip-text);
}

/* ========================================
   CONTAINER & LAYOUT
   ======================================== */

.container {
  width: calc(100% - 20px);
  max-width: 1400px;
  margin: 0 auto;
  background-color: var(--container-bg);
  padding: 32px;
  border-radius: 20px;
  box-shadow: 0 24px 45px var(--shadow-color);
  border: 1px solid var(--border-color);
  transition: background-color 0.3s, box-shadow 0.3s;
}

.page-content {
  margin-top: 24px;
}

.page-hero {
  margin-bottom: 24px;
}

.page-hero h1 {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-color);
}

.page-lede {
  color: var(--text-secondary);
  margin-top: 8px;
  margin-bottom: 0;
}

.page-stack {
  display: grid;
  gap: 20px;
}

.page-stack + .page-stack {
  margin-top: 1.5rem;
}

.page-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 12px var(--shadow-color);
}

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

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  margin: 0;
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0.25rem 0 0;
}

/* Dashboard Panels */
.dashboard-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.dashboard-panel {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1.25rem;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dashboard-panel__label {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--text-muted);
}

.dashboard-panel__value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-color);
}

.dashboard-panel__change {
  font-size: 0.85rem;
  font-weight: 500;
}

.dashboard-panel__change--up {
  color: var(--success);
}

.dashboard-panel__change--down {
  color: var(--danger);
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

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

.btn-secondary {
  background: transparent;
  color: var(--text-color);
  border-color: var(--border-color);
}

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

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}

.btn-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* ========================================
   FORMS
   ======================================== */

.config-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

input, select, textarea {
  padding: 10px 12px;
  font-size: 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--input-bg);
  color: var(--text-color);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 188, 130, 0.15);
}

.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-unit input {
  padding-right: 50px;
  width: 100%;
}

.input-unit {
  position: absolute;
  right: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  pointer-events: none;
}

/* ========================================
   TABLES
   ======================================== */

.table-wrapper {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead {
  background: var(--bg-hover);
}

th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--text-color);
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

tbody tr:hover {
  background: var(--hover-color);
}

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

/* ========================================
   STATUS BADGES
   ======================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

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

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

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

.badge--info {
  background: rgba(59, 130, 246, 0.15);
  color: var(--info);
}

/* ========================================
   THEME TOGGLE
   ======================================== */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: transparent;
  cursor: pointer;
}

.theme-toggle__icon {
  display: none;
  font-size: 1.1rem;
  line-height: 1;
  filter: grayscale(1);
}

[data-theme="light"] .theme-toggle__icon--moon,
:not([data-theme]) .theme-toggle__icon--moon {
  display: block;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  display: block;
}

/* ========================================
   UTILITIES
   ======================================== */

.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

.hidden { display: none !important; }

/* ========================================
   PAGE HERO WITH ACTIONS
   ======================================== */

.page-hero__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ========================================
   FILTERS BAR
   ======================================== */

.filters-bar {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  min-width: 200px;
}

.search-box input {
  width: 100%;
}

.filters-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filters-group select {
  min-width: 150px;
}

/* ========================================
   USER CELL
   ======================================== */

.user-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  flex-shrink: 0;
}

/* ========================================
   ACTION BUTTONS
   ======================================== */

.action-buttons {
  display: flex;
  gap: 0.5rem;
}

.btn-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  font-size: 0.9rem;
  filter: grayscale(1);
  opacity: 0.7;
}

.btn-icon:hover {
  background: var(--hover-color);
  border-color: var(--primary-color);
  filter: grayscale(0);
  opacity: 1;
}

.btn-icon--danger:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--danger);
}

/* ========================================
   PAGINATION
   ======================================== */

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  margin-top: 1rem;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 1rem;
}

.pagination__info {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.pagination__controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pagination__pages {
  display: flex;
  gap: 0.25rem;
}

.pagination__page {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-color);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
}

.pagination__page:hover {
  background: var(--hover-color);
}

.pagination__page--active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
}

/* ========================================
   MODAL
   ======================================== */

.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal[hidden] {
  display: none;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal__content {
  position: relative;
  background: var(--card-bg);
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 24px 48px var(--shadow-color);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  color: var(--text-color);
}

.modal__close {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal__close:hover {
  background: var(--hover-color);
  color: var(--text-color);
}

.modal__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
}

/* ========================================
   ADDITIONAL BADGES
   ======================================== */

.badge--secondary {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.badge--muted {
  background: var(--bg-hover);
  color: var(--text-muted);
}

/* ========================================
   FOOTER
   ======================================== */

.site-footer {
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 3rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--primary-color);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

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

@media (max-width: 768px) {
  body {
    padding: 56px 12px 12px 12px;
  }

  .app-shell {
    padding: 0 12px;
  }

  .container {
    padding: 16px;
    border-radius: 12px;
  }

  .page-hero h1 {
    font-size: 1.5rem;
  }

  .app-shell__nav {
    display: none;
  }

  .config-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .page-grid {
    grid-template-columns: 1fr;
  }
}