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

:root {
  --bg-main: #0b0f19;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-sidebar: #0f1322;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  
  --primary: #8b5cf6;
  --primary-glow: rgba(139, 92, 246, 0.3);
  --secondary: #3b82f6;
  
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
  
  --transition-speed: 0.3s;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Outfit', sans-serif;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Sidebar Styling */
.sidebar {
  width: 260px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  flex-shrink: 0;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  background: linear-gradient(135deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 10px;
  transition: all var(--transition-speed);
  font-weight: 500;
}

.nav-item.active a, .nav-item a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border-left: 3px solid var(--primary);
  padding-left: calc(1rem - 3px);
}

.nav-icon {
  width: 20px;
  height: 20px;
  opacity: 0.7;
}

/* Main Content Area */
.main-wrapper {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.header {
  height: 70px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background-color: rgba(15, 19, 34, 0.5);
  backdrop-filter: blur(10px);
}

.search-bar {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  color: #fff;
  width: 300px;
  outline: none;
}

.profile-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.profile-name {
  font-weight: 500;
}

.profile-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.4);
}

.content-body {
  padding: 2rem;
  flex-grow: 1;
  overflow-y: auto;
}

/* Dashboard Cards & Layout */
.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-speed);
}

.stat-card:hover {
  transform: translateY(-5px);
}

.stat-title {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
}

.stat-glow {
  position: absolute;
  top: -50px;
  right: -50px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* Kanban Board Styling */
.kanban-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.kanban-column {
  background: rgba(15, 19, 34, 0.8);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1rem;
  min-height: 500px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.kanban-header {
  font-weight: 600;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.kanban-header.yapilacak { border-bottom-color: var(--text-muted); }
.kanban-header.yapiliyor { border-bottom-color: var(--info); }
.kanban-header.onay_bekliyor { border-bottom-color: var(--warning); }
.kanban-header.tamamlandi { border-bottom-color: var(--success); }

.kanban-count {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.2rem 0.5rem;
  border-radius: 10px;
  font-size: 0.75rem;
}

.kanban-cards {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-height: 400px;
}

.kanban-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
  cursor: grab;
  transition: all var(--transition-speed);
}

.kanban-card:hover {
  border-color: rgba(139, 92, 246, 0.5);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.1);
}

.task-category {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.cat-kdv { background: rgba(139, 92, 246, 0.2); color: #c084fc; }
.cat-sgk { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.cat-muhtasar { background: rgba(6, 182, 212, 0.2); color: #22d3ee; }
.cat-gecici_vergi { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.cat-diger { background: rgba(148, 163, 184, 0.2); color: #cbd5e1; }

.task-title {
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.task-client {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.task-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.task-assignee {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--secondary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.7rem;
}

/* Button & Table Styling */
.btn {
  padding: 0.5rem 1rem;
  border-radius: 10px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  transition: all var(--transition-speed);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
  filter: brightness(1.1);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.table-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  margin-top: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 1rem 1.5rem;
}

th {
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.875rem;
}

td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.95rem;
}

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

tr:hover td {
  background: rgba(255, 255, 255, 0.01);
}

/* Badges */
.badge {
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.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); }

/* Modal and Forms */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
  z-index: 1000;
}

.modal-content {
  background: #0f1322;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 500px;
  max-width: 90%;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

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

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  color: #fff;
  outline: none;
  font-size: 0.95rem;
  transition: all var(--transition-speed);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

/* Grid helper for forms */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}