/* ============================================================
   SmartTech Smart Home Planner - Main Stylesheet
   ============================================================ */

:root {
  --blue-dark:   #0d2d5e;
  --blue-main:   #1a6fbd;
  --blue-light:  #3a8fd4;
  --blue-pale:   #deeaf8;
  --green-main:  #7ab629;
  --green-dark:  #5a9012;
  --green-light: #96d438;
  --grey-900:    #1a1d23;
  --grey-800:    #252930;
  --grey-700:    #353a44;
  --grey-600:    #4a5060;
  --grey-500:    #6b7280;
  --grey-400:    #9ca3af;
  --grey-300:    #d1d5db;
  --grey-200:    #e5e7eb;
  --grey-100:    #f3f4f6;
  --grey-50:     #f9fafb;
  --white:       #ffffff;
  --danger:      #dc2626;
  --warning:     #d97706;
  --success:     #16a34a;
  --info:        #0891b2;

  --sidebar-w:   260px;
  --topbar-h:    64px;
  --radius:      8px;
  --radius-lg:   14px;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:   0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:   0 10px 40px rgba(0,0,0,.14);
  --transition:  .2s ease;
  --font-main:   'Exo 2', sans-serif;
  --font-body:   'Inter', sans-serif;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--grey-100);
  color: var(--grey-800);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Typography ─────────────────────────────────────────── */
h1,h2,h3,h4,h5,h6 { font-family: var(--font-main); font-weight: 700; line-height: 1.25; }
h1 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }
p  { color: var(--grey-600); }
a  { color: var(--blue-main); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-dark); }

/* ── Login Page ─────────────────────────────────────────── */
body.page-login {
  background: linear-gradient(135deg, var(--blue-dark) 0%, var(--grey-900) 60%, #0f2040 100%);
  display: flex; align-items: center; justify-content: center; min-height: 100vh;
  position: relative; overflow: hidden;
}
body.page-login::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231a6fbd' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.login-card {
  background: rgba(255,255,255,.97);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem 2.8rem;
  width: 100%; max-width: 440px;
  position: relative; z-index: 1;
  animation: slideUp .5s ease;
}
.login-logo { text-align: center; margin-bottom: 2rem; }
.login-logo img { max-height: 56px; }
.login-title { font-size: 1.5rem; font-family: var(--font-main); color: var(--blue-dark); text-align:center; margin-bottom:.3rem; }
.login-sub   { text-align:center; color:var(--grey-500); font-size:.9rem; margin-bottom:2rem; }

/* ── Forms ──────────────────────────────────────────────── */
.form-group { margin-bottom: 1.2rem; }
.form-label { display:block; font-weight:600; font-size:.85rem; color:var(--grey-700); margin-bottom:.4rem; }
.form-control {
  width: 100%; padding: .65rem 1rem;
  border: 1.5px solid var(--grey-300);
  border-radius: var(--radius); font-family:var(--font-body); font-size:.93rem;
  color: var(--grey-800); background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus { outline:none; border-color:var(--blue-main); box-shadow:0 0 0 3px rgba(26,111,189,.15); }
.form-control.is-invalid { border-color:var(--danger); }
.invalid-feedback { color:var(--danger); font-size:.8rem; margin-top:.25rem; }

.input-group { position:relative; }
.input-group .form-control { padding-left: 2.6rem; }
.input-group-icon {
  position:absolute; left:.85rem; top:50%; transform:translateY(-50%);
  color:var(--grey-400); font-size:.95rem; pointer-events:none;
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; gap:.45rem;
  padding:.6rem 1.4rem; border:none; border-radius:var(--radius);
  font-family:var(--font-body); font-weight:600; font-size:.9rem;
  cursor:pointer; transition:all var(--transition); white-space:nowrap;
  text-decoration:none;
}
.btn-primary   { background:var(--blue-main); color:var(--white); }
.btn-primary:hover   { background:var(--blue-dark); color:var(--white); transform:translateY(-1px); box-shadow:0 4px 12px rgba(26,111,189,.3); }
.btn-success   { background:var(--green-main); color:var(--white); }
.btn-success:hover   { background:var(--green-dark); color:var(--white); }
.btn-danger    { background:var(--danger); color:var(--white); }
.btn-danger:hover    { background:#b91c1c; color:var(--white); }
.btn-outline   { background:transparent; border:1.5px solid var(--grey-300); color:var(--grey-700); }
.btn-outline:hover   { border-color:var(--blue-main); color:var(--blue-main); background:var(--blue-pale); }
.btn-sm  { padding:.4rem .9rem; font-size:.82rem; }
.btn-lg  { padding:.8rem 2rem; font-size:1rem; }
.btn-block { width:100%; justify-content:center; }
.btn:disabled { opacity:.55; cursor:not-allowed; transform:none; }

/* ── Alerts ─────────────────────────────────────────────── */
.alert { padding:.85rem 1.2rem; border-radius:var(--radius); font-size:.9rem; margin-bottom:1rem; display:flex; align-items:flex-start; gap:.6rem; }
.alert-success { background:#d1fae5; color:#065f46; border:1px solid #a7f3d0; }
.alert-danger  { background:#fee2e2; color:#7f1d1d; border:1px solid #fca5a5; }
.alert-warning { background:#fef3c7; color:#78350f; border:1px solid #fde68a; }
.alert-info    { background:#e0f2fe; color:#075985; border:1px solid #bae6fd; }

/* ── Dashboard Layout ───────────────────────────────────── */
.dashboard-wrapper { display:flex; min-height:100vh; }

.sidebar {
  width: var(--sidebar-w); background:var(--blue-dark);
  display:flex; flex-direction:column;
  position:fixed; top:0; left:0; height:100vh;
  z-index:100; transition:transform var(--transition);
  box-shadow: 3px 0 20px rgba(0,0,0,.2);
}
.sidebar-logo {
  padding: 1.2rem 1.4rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.sidebar-logo img { max-height: 44px; filter: brightness(0) invert(1); }
.sidebar-logo-text { color:var(--white); font-family:var(--font-main); font-weight:700; font-size:1.05rem; margin-top:.3rem; opacity:.7; }

.sidebar-nav { flex:1; overflow-y:auto; padding:1rem 0; }
.sidebar-nav::-webkit-scrollbar { width:4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background:rgba(255,255,255,.2); border-radius:2px; }

.nav-section { padding:.6rem 1.2rem .3rem; font-size:.7rem; font-weight:700; text-transform:uppercase; letter-spacing:.1em; color:rgba(255,255,255,.35); }

.nav-item {
  display:flex; align-items:center; gap:.75rem;
  padding:.7rem 1.4rem; color:rgba(255,255,255,.75);
  font-size:.9rem; font-weight:500; cursor:pointer;
  transition:all var(--transition); position:relative;
  text-decoration:none;
}
.nav-item:hover, .nav-item.active { color:var(--white); background:rgba(255,255,255,.1); }
.nav-item.active::before {
  content:''; position:absolute; left:0; top:20%; height:60%;
  width:3px; background:var(--green-main); border-radius:0 3px 3px 0;
}
.nav-item i { width:18px; text-align:center; font-size:.95rem; color:var(--green-light); }
.nav-badge { margin-left:auto; background:var(--green-main); color:var(--white); font-size:.7rem; padding:.15rem .45rem; border-radius:20px; font-weight:700; }

.sidebar-footer {
  padding:1rem 1.4rem; border-top:1px solid rgba(255,255,255,.1);
}
.user-card { display:flex; align-items:center; gap:.75rem; }
.user-avatar {
  width:36px; height:36px; border-radius:50%;
  background:var(--green-main); display:flex; align-items:center; justify-content:center;
  color:var(--white); font-weight:700; font-size:.95rem;
}
.user-info .name { color:var(--white); font-weight:600; font-size:.85rem; }
.user-info .role { color:rgba(255,255,255,.5); font-size:.75rem; }
.user-logout { margin-left:auto; color:rgba(255,255,255,.5); cursor:pointer; transition:color var(--transition); }
.user-logout:hover { color:var(--danger); }

/* ── Main Content ───────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex:1; display:flex; flex-direction:column; min-height:100vh;
}
.topbar {
  height:var(--topbar-h); background:var(--white);
  display:flex; align-items:center; padding:0 1.8rem;
  border-bottom:1px solid var(--grey-200);
  position:sticky; top:0; z-index:50;
  box-shadow:var(--shadow-sm);
  gap:1rem;
}
.topbar-title { font-family:var(--font-main); font-weight:700; color:var(--blue-dark); font-size:1.1rem; }
.topbar-actions { margin-left:auto; display:flex; align-items:center; gap:.8rem; }
.topbar-btn {
  width:38px; height:38px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  color:var(--grey-600); cursor:pointer; transition:all var(--transition);
  background:var(--grey-100); border:none;
}
.topbar-btn:hover { background:var(--blue-pale); color:var(--blue-main); }
.notification-dot { position:relative; }
.notification-dot::after {
  content:''; position:absolute; top:6px; right:6px;
  width:8px; height:8px; background:var(--danger); border-radius:50%;
  border:2px solid var(--white);
}

.page-content { padding:1.8rem; flex:1; }
.page-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:1.6rem; flex-wrap:wrap; gap:1rem; }
.breadcrumb { display:flex; align-items:center; gap:.4rem; font-size:.82rem; color:var(--grey-500); margin-top:.3rem; }
.breadcrumb a { color:var(--grey-500); }
.breadcrumb a:hover { color:var(--blue-main); }
.breadcrumb span { color:var(--grey-300); }

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background:var(--white); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm); border:1px solid var(--grey-200);
  overflow:hidden;
}
.card-header {
  padding:1rem 1.4rem; border-bottom:1px solid var(--grey-200);
  display:flex; align-items:center; justify-content:space-between;
  background:var(--grey-50);
}
.card-title { font-family:var(--font-main); font-weight:700; color:var(--blue-dark); font-size:1rem; }
.card-body { padding:1.4rem; }
.card-footer { padding:.9rem 1.4rem; border-top:1px solid var(--grey-200); background:var(--grey-50); }

/* ── Stats Cards ────────────────────────────────────────── */
.stats-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:1.2rem; margin-bottom:1.8rem; }
.stat-card {
  background:var(--white); border-radius:var(--radius-lg);
  padding:1.4rem; border:1px solid var(--grey-200);
  box-shadow:var(--shadow-sm); display:flex; align-items:center; gap:1.2rem;
  transition:transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); }
.stat-icon {
  width:50px; height:50px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; flex-shrink:0;
}
.stat-icon.blue   { background:var(--blue-pale); color:var(--blue-main); }
.stat-icon.green  { background:#dcfce7; color:var(--green-dark); }
.stat-icon.orange { background:#fef3c7; color:var(--warning); }
.stat-icon.red    { background:#fee2e2; color:var(--danger); }
.stat-value { font-family:var(--font-main); font-size:1.8rem; font-weight:800; color:var(--blue-dark); line-height:1; }
.stat-label { font-size:.8rem; color:var(--grey-500); margin-top:.2rem; }

/* ── Tables ─────────────────────────────────────────────── */
.table-wrapper { overflow-x:auto; border-radius:var(--radius); }
table { width:100%; border-collapse:collapse; }
thead th {
  background:var(--grey-50); padding:.75rem 1rem;
  font-size:.78rem; font-weight:700; text-transform:uppercase;
  letter-spacing:.05em; color:var(--grey-500);
  border-bottom:2px solid var(--grey-200); white-space:nowrap;
}
tbody td { padding:.8rem 1rem; border-bottom:1px solid var(--grey-100); font-size:.88rem; vertical-align:middle; }
tbody tr:hover td { background:var(--grey-50); }
tbody tr:last-child td { border-bottom:none; }

/* ── Badges ─────────────────────────────────────────────── */
.badge {
  display:inline-flex; align-items:center; gap:.3rem;
  padding:.2rem .65rem; border-radius:20px; font-size:.75rem; font-weight:600;
}
.badge-active   { background:#dcfce7; color:#15803d; }
.badge-pending  { background:#fef9c3; color:#92400e; }
.badge-inactive { background:var(--grey-200); color:var(--grey-600); }
.badge-danger   { background:#fee2e2; color:#991b1b; }
.badge-blue     { background:var(--blue-pale); color:var(--blue-dark); }

/* ── Modal ──────────────────────────────────────────────── */
.modal-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,.5);
  display:flex; align-items:center; justify-content:center;
  z-index:1000; padding:1rem;
  backdrop-filter:blur(2px);
  animation:fadeIn .2s ease;
}
.modal {
  background:var(--white); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg); width:100%; max-width:520px;
  max-height:90vh; overflow-y:auto;
  animation:slideUp .25s ease;
}
.modal-header {
  padding:1.2rem 1.4rem; border-bottom:1px solid var(--grey-200);
  display:flex; align-items:center; justify-content:space-between;
  position:sticky; top:0; background:var(--white); z-index:1;
}
.modal-title { font-family:var(--font-main); font-weight:700; color:var(--blue-dark); }
.modal-close { background:none; border:none; font-size:1.3rem; cursor:pointer; color:var(--grey-400); transition:color var(--transition); }
.modal-close:hover { color:var(--danger); }
.modal-body   { padding:1.4rem; }
.modal-footer { padding:1rem 1.4rem; border-top:1px solid var(--grey-200); display:flex; gap:.75rem; justify-content:flex-end; }

/* ── Hamburger (mobile) ─────────────────────────────────── */
.sidebar-toggle {
  display:none; background:none; border:none;
  color:var(--grey-700); font-size:1.3rem; cursor:pointer; padding:.3rem;
}

/* ── Utilities ──────────────────────────────────────────── */
.text-center { text-align:center; }
.text-muted  { color:var(--grey-500); }
.text-small  { font-size:.82rem; }
.d-flex      { display:flex; }
.align-center { align-items:center; }
.gap-1 { gap:.5rem; } .gap-2 { gap:1rem; }
.mt-1 { margin-top:.5rem; } .mt-2 { margin-top:1rem; } .mt-3 { margin-top:1.5rem; }
.mb-1 { margin-bottom:.5rem; } .mb-2 { margin-bottom:1rem; }
.fw-bold { font-weight:700; }
.img-thumb { width:40px; height:40px; object-fit:cover; border-radius:6px; border:1px solid var(--grey-200); }

/* ── Animations ─────────────────────────────────────────── */
@keyframes fadeIn  { from { opacity:0; } to { opacity:1; } }
@keyframes slideUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
@keyframes pulse   { 0%,100% { opacity:1; } 50% { opacity:.5; } }

.animate-fadein { animation:fadeIn .4s ease; }
.animate-slideup { animation:slideUp .4s ease; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    transform:translateX(-100%);
  }
  .sidebar.open { transform:translateX(0); }
  .main-content { margin-left:0; }
  .sidebar-toggle { display:block; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .page-content { padding:1rem; }
  .topbar { padding:0 1rem; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns:1fr; }
  .login-card { padding:2rem 1.5rem; }
}

/* ── Sidebar overlay (mobile) ───────────────────────────── */
.sidebar-overlay {
  display:none; position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:99;
}
.sidebar-overlay.active { display:block; }

/* ── Empty State ────────────────────────────────────────── */
.empty-state { text-align:center; padding:3rem 1rem; color:var(--grey-400); }
.empty-state i { font-size:3rem; margin-bottom:1rem; display:block; }
.empty-state p { font-size:.95rem; }

/* ── Search ─────────────────────────────────────────────── */
.search-bar {
  display:flex; align-items:center; gap:.6rem;
  background:var(--grey-100); border:1.5px solid var(--grey-200);
  border-radius:var(--radius); padding:.45rem .9rem;
  transition:border-color var(--transition);
}
.search-bar:focus-within { border-color:var(--blue-main); background:var(--white); }
.search-bar input { border:none; background:none; outline:none; font-size:.88rem; color:var(--grey-800); min-width:160px; }
.search-bar i { color:var(--grey-400); font-size:.9rem; }