/* ============================================================
   InstaScheduler AI — Sleek Premium Design
   ============================================================ */

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

:root {
  --bg-app: #000000;
  --bg-sidebar: rgba(10, 10, 10, 0.95);
  --bg-card: #0a0a0a;
  --bg-card-hover: #121212;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.03);
  
  --text-main: #ffffff;
  --text-secondary: #a1a1aa; /* zinc-400 */
  --text-dim: #71717a; /* zinc-500 */
  
  --primary: #e879f9; /* fuchsia-400 */
  --primary-hover: #f0abfc; /* fuchsia-300 */
  --primary-bg: rgba(232, 121, 249, 0.1);
  --primary-glow: rgba(232, 121, 249, 0.3);
  
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ── Background & Effects ── */
.bg-ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 50% 0%, rgba(232, 121, 249, 0.08) 0%, transparent 60%);
  pointer-events: none;
}
.bg-ambient::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.02'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* ── Typography ── */
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; }
p { line-height: 1.6; }

/* ═══════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════ */
.sidebar {
  width: 260px;
  height: 100vh;
  background: var(--bg-sidebar);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 2.5rem;
  text-decoration: none;
}
.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: #000;
  box-shadow: 0 0 20px var(--primary-glow);
}
.logo-text {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.nav-links { display: flex; flex-direction: column; gap: 6px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: var(--transition);
}
.nav-item i { font-size: 1.1rem; width: 24px; text-align: center; }
.nav-item:hover {
  color: var(--text-main);
  background: var(--glass-bg);
}
.nav-item.active {
  background: var(--primary-bg);
  color: var(--primary);
  font-weight: 600;
}

.sidebar-footer {
  margin-top: auto;
}
.status-badge {
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  margin-bottom: 12px;
}
.status-badge-title { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.status-indicator { display: flex; align-items: center; gap: 8px; }
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.4);
}
.status-text { font-size: 0.8rem; font-weight: 600; color: var(--success); }

/* ═══════════════════════════════════════
   MAIN CONTENT
═══════════════════════════════════════ */
.main-wrapper {
  flex: 1;
  padding: 3rem 4rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

/* ── Header ── */
.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 3rem;
  animation: fadeIn 0.5s ease;
}
.header-left h1 {
  font-size: 2.2rem;
  color: var(--text-main);
  margin-bottom: 4px;
}
.header-left p {
  color: var(--text-secondary);
  font-size: 1rem;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.account-badge {
  background: var(--bg-card);
  padding: 0.6rem 1.2rem;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.85rem;
}

/* ── Cards ── */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.card-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-title i { color: var(--text-main); font-size: 1rem; }

.stat-value {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -1px;
}
.stat-desc {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--glass-bg);
  border-radius: 4px;
  margin-top: 1.5rem;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 1s ease;
}

/* ── Forms ── */
.form-group { margin-bottom: 1.5rem; }
.label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.8rem;
}
.label i { color: var(--text-dim); }

.input, .textarea, select.input {
  width: 100%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: var(--transition);
}
.input::placeholder, .textarea::placeholder { color: var(--text-dim); }
.input:focus, .textarea:focus, select.input:focus {
  border-color: var(--primary);
  outline: none;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 0 0 2px var(--primary-bg);
}
select.input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23a1a1aa'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  cursor: pointer;
}
select.input option { background: var(--bg-card); color: var(--text-main); }
.textarea { resize: vertical; min-height: 120px; }

/* ── Buttons ── */
.btn {
  background: var(--text-main);
  color: #000;
  border: none;
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn:hover { background: #e4e4e7; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary); color: #000; }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 4px 20px var(--primary-glow); }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}
.btn-ghost:hover {
  background: var(--glass-bg);
  border-color: var(--border-hover);
}

.btn-sm { padding: 0.6rem 1rem; font-size: 0.85rem; }
.btn-danger { background: rgba(239, 68, 68, 0.1); color: var(--error); border: 1px solid rgba(239, 68, 68, 0.2); }
.btn-danger:hover { background: rgba(239, 68, 68, 0.15); }

/* ── Dropzone ── */
.dropzone {
  border: 1px dashed var(--border-hover);
  border-radius: var(--radius-md);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.01);
  transition: var(--transition);
}
.dropzone:hover {
  border-color: var(--primary);
  background: var(--primary-bg);
}

/* ── Calendar ── */
.cal-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-bottom: 8px;
}
.cal-header-cell {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 0;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}
.cal-day {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  position: relative;
}
.cal-day.today {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
}
.cal-day.has-posts::after {
  content: '';
  position: absolute;
  bottom: 8px;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--text-main);
}
.cal-day.other-month { opacity: 0.3; }

/* ── Sched Card ── */
.sched-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  transition: var(--transition);
}
.sched-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.sched-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.sched-account { font-size: 0.8rem; font-weight: 600; color: var(--text-main); }
.sched-badge {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 4px;
}
.sched-badge.pending { background: rgba(245, 158, 11, 0.1); color: var(--warning); }
.sched-badge.success { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.sched-badge.error { background: rgba(239, 68, 68, 0.1); color: var(--error); }
.sched-img-container { width: 100%; height: 180px; border-radius: var(--radius-sm); overflow: hidden; background: #000; }
.sched-thumb { width: 100%; height: 100%; object-fit: cover; opacity: 0.9; transition: opacity 0.3s; }
.sched-card:hover .sched-thumb { opacity: 1; }

/* ── Login Screen ── */
#login-screen {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-app);
}
.login-card {
  width: 100%;
  max-width: 400px;
  padding: 3rem;
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-align: center;
}
.login-logo {
  width: 64px; height: 64px;
  background: var(--primary);
  border-radius: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.8rem; color: #000;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 30px var(--primary-glow);
}
.login-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.5rem; }
.login-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 2.5rem; }

/* ── Modals & Overlays ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 11000;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
}
.modal-content {
  width: 90%; max-width: 460px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.spinner {
  width: 32px; height: 32px;
  border: 2px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

#toast-container { position: fixed; bottom: 2rem; right: 2rem; z-index: 12000; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 500;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.section { display: none; }
.section.active { display: block; animation: fadeIn 0.4s ease; }

/* ── Selection Bar ── */
.selection-bar {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(150%);
  background: var(--bg-card); border: 1px solid var(--border-color);
  padding: 1rem 2rem; border-radius: 100px;
  display: flex; align-items: center; gap: 2rem;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000; box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}
.selection-bar.active { transform: translateX(-50%) translateY(0); }
.selection-count { font-weight: 600; color: var(--text-main); }
.selection-checkbox {
  position: absolute; top: 12px; right: 12px; z-index: 10;
  width: 24px; height: 24px; border-radius: 6px;
  border: 1px solid var(--border-hover);
  background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: var(--transition);
}
.selection-checkbox.checked { background: var(--text-main); border-color: var(--text-main); }
.selection-checkbox.checked i { display: block; color: #000; }
.selection-checkbox i { display: none; font-size: 0.8rem; }
.sched-card.selected { border-color: var(--primary); background: var(--primary-bg); }

/* ── Layout Classes ── */
.dashboard-grid-activity { grid-template-columns: 1fr 380px; margin-top: 2rem; }
.dashboard-grid-new-post { grid-template-columns: 1fr 420px; }

/* ── Animations ── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ── */
@media (max-width: 1200px) {
  .dashboard-grid, .dashboard-grid-activity, .dashboard-grid-new-post { grid-template-columns: repeat(2, 1fr); }
  .main-wrapper { padding: 2.5rem; }
}

@media (max-width: 900px) {
  .sidebar { width: 80px; padding: 2rem 1rem; align-items: center; }
  .logo-text, .nav-item span, .status-badge { display: none; }
  .nav-item i { margin: 0; font-size: 1.3rem; }
  .nav-item { justify-content: center; padding: 1rem; }
  .sidebar-footer .btn { width: auto; padding: 1rem; }
  .sidebar-footer .btn span { display: none; }
  .dashboard-grid, .dashboard-grid-activity, .dashboard-grid-new-post { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  body { flex-direction: column; }
  .sidebar {
    position: fixed; bottom: 0; left: 0; width: 100%; height: 70px;
    flex-direction: row; padding: 0 1rem; border-right: none; border-top: 1px solid var(--border-color);
    z-index: 10000; background: rgba(10, 10, 10, 0.98);
  }
  .logo-container, .status-badge { display: none; }
  .nav-links { flex-direction: row; width: 100%; justify-content: space-around; }
  .sidebar-footer { display: none; } /* Move logout somewhere else if needed, or keep minimal */
  .main-wrapper { padding: 1.5rem; padding-bottom: 90px; }
  .header { flex-direction: column; gap: 1rem; }
  .stat-value { font-size: 2.5rem; }
}