:root {
  --bg: #0b0b0d;
  --card: #141418;
  --muted: #a3a3a3;
  --primary: #e10600;
  --text: #f2f2f2;
  --accent: #ff4040;
  --border: #1f1f25;
  --border-light: #2a2a32;
  --success: #14b814;
  --error: #d82727;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  --transition: all 0.2s ease;
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, 'Tajawal', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  position: sticky;
  top: 0;
  background: rgba(11, 11, 13, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 800;
}

.brand .badge {
  background: var(--primary);
  color: #fff;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
}

/* Menu */
.menu-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.profile-mini {
  display: flex;
  align-items: center;
  gap: 8px;
}

.profile-mini img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.profile-mini img:hover {
  border-color: var(--primary);
}

.hello {
  font-size: 0.75rem;
  color: #e6e6e7;
}

.menu-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
border: 1px solid #e10600;
    background: #2b2b33;
    cursor: pointer;
  transition: var(--transition);
}

.menu-button:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

.icon {
  width: 18px;
  height: 18px;
  color: white;
}

.menu-panel {
  display: none;
  position: absolute;
  right: 12px;
  top: 58px;
  background: var(--card);
  border: 1px solid #24242c;
  box-shadow: var(--shadow);
  border-radius: var(--radius-md);
  min-width: 260px;
  padding: 8px;
  animation: slideDown 0.2s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.menu-panel a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  padding: 10px;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: var(--transition);
}

.menu-panel a:hover {
  background: #18181f;
  transform: translateX(4px);
}

.menu-panel a.active {
  background: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  background: linear-gradient(180deg, #1b1b22, #111115);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  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, 0.1), transparent);
  transition: left 0.5s;
}

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

.btn.primary {
  background: linear-gradient(160deg, var(--primary), #9b0000);
  border-color: #8a0000;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(225, 6, 0, 0.15);
}

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

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 14px;
  transition: var(--transition);
}

.card:hover {
  border-color: #2a2a35;
  transform: translateY(-1px);
}

/* Grid System */
.grid {
  display: grid;
  gap: 12px;
}

.kpis {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.kpi {
  background: #101014;
  border: 1px solid #1e1e24;
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  transition: var(--transition);
}

.kpi:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* Forms */
.input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: #0f0f13;
  color: #fff;
  border: 1px solid #27272f;
  outline: none;
  font-family: inherit;
  font-size: inherit;
  transition: var(--transition);
}

.input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(225, 6, 0, 0.1);
}

.label {
  display: block;
  margin-bottom: 6px;
  color: #d1d1d1;
  font-weight: 600;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid #25252b;
  background: var(--card);
}

.table th, .table td {
  padding: 12px;
  border-bottom: 1px solid #23232a;
  text-align: right;
}

.table th {
  background: #121218;
  font-weight: 700;
}

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

.table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

/* Alerts */
.alert {
  background: #121218;
  border-left: 3px solid var(--primary);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  margin: 12px 0;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.alert.success {
  border-left-color: var(--success);
}

.alert.error {
  border-left-color: var(--error);
}

.small {
  font-size: 0.75rem;
  color: #bcbcbc;
}

/* Week Tabs */
.week-tabs {
  display: flex;
  gap: 8px;
  margin: 10px 0 12px;
  overflow: auto;
  padding: 4px 0;
}

.week-tabs::-webkit-scrollbar {
  height: 4px;
}

.week-tabs::-webkit-scrollbar-track {
  background: #1a1a1f;
  border-radius: 2px;
}

.week-tabs::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 2px;
}

.tab {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid #2b2b33;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
  font-weight: 500;
}

.tab:hover {
  border-color: var(--primary);
  background: rgba(225, 6, 0, 0.1);
}

.tab.active {
  background: var(--primary);
  border-color: #7d0000;
}

/* Day Grid */
.day-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.day {
  background: #111116;
  border: 1px solid #22222a;
  border-radius: 14px;
  padding: 16px;
  transition: var(--transition);
}

.day:hover {
  border-color: #2a2a35;
  transform: translateY(-2px);
}

.day .badge {
  display: inline-block;
  background: #16161c;
  border: 1px solid #262632;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.75rem;
  margin-bottom: 8px;
  font-weight: 600;
}

.day.done {
  border-color: #2fe32f;
  background: #103d10;
}

.week-done {
  border-color: #2fe32f !important;
  box-shadow: 0 0 0 1px #2fe32f inset;
}

.exercise.done {
  border-color: #118311;
  background: linear-gradient(180deg, #123a12, #102510);
}

/* Hero Section */
.hero {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.hero .bg {
  position: absolute;
  inset: 0;
  background: url('https://images.unsplash.com/photo-1571019614242-c5c5dee9f50b?q=80&w=1600&auto=format&fit=crop') center/cover no-repeat;
  filter: grayscale(0.2) brightness(0.5);
  transition: transform 0.3s ease;
}

.hero:hover .bg {
  transform: scale(1.05);
}

.hero .overlay {
  position: relative;
  padding: 36px 20px;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero h1 {
  margin: 0 0 10px 0;
  font-size: 26px;
  font-weight: 800;
}

.hero p {
  margin: 0 0 16px 0;
  color: #e5e5e5;
  font-size: 1.1rem;
}

/* Page Head */
.page-head {
  margin: 10px 0 20px;
}

.page-head h2 {
  margin: 0 0 8px 0;
  font-weight: 800;
}

.page-head .desc {
  color: #cfcfcf;
  font-size: 1rem;
}

/* Responsive Design */
@media (min-width: 480px) {
  .container {
    padding: 20px;
  }
  
  .hero h1 {
    font-size: 28px;
  }
}

@media (min-width: 768px) {
  .kpis {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero h1 {
    font-size: 32px;
  }
}

@media (min-width: 1024px) {
  .day-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .hero h1 {
    font-size: 36px;
  }
}

/* Utility Classes */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.mb-0 {
  margin-bottom: 0;
}

.mt-0 {
  margin-top: 0;
}

/* Loading State */
.loading {
  opacity: 0.7;
  pointer-events: none;
  position: relative;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--primary);
  border-radius: 50%;
  border-right-color: transparent;
  animation: spin 0.8s linear infinite;
}

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