:root {
  color-scheme: light dark;
  /* Palette: Electric Indigo */
  --blue: #4F46E5; 
  --blue600: #4338CA;
  --blue-glow: rgba(79, 70, 229, 0.5);
  --ring: #818CF8;
  
  --text: #0F172A;
  --muted: #64748B;
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --border: #E2E8F0;
  
  /* Glass & Cards */
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(255, 255, 255, 0.6);
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(255, 255, 255, 0.4);
  
  --input-bg: #FFFFFF;
  --table-head-bg: #F8FAFC;
  --table-row-hover: #F1F5F9;
  --text-heading: #0F172A;
  
  --sidebar-bg: #0F172A;
  --sidebar-text: #94A3B8;
  --sidebar-text-hover: #F8FAFC;
  --sidebar-active-bg: #1E293B;
  --sidebar-active-accent: #4F46E5;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 40px -12px rgba(79, 70, 229, 0.15);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  
  --logo-filter: none; 

  --header-height: 84px;
  --footer-height: 60px;
  --footer-height-mobile-collapsed: 54px;
  --footer-height-mobile-expanded: 96px;
  --sidebar-width: 260px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F172A;
    --bg-soft: #1E293B;
    --text: #E2E8F0;
    --muted: #94A3B8;
    --border: #1E293B;
    
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(30, 41, 59, 0.6);
    --glass-border: rgba(255, 255, 255, 0.05);
    
    --input-bg: #0F172A;
    --table-head-bg: #0F172A;
    --table-row-hover: #334155;
    --text-heading: #F8FAFC;
    --shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
    --shadow-lg: 0 20px 40px -12px rgba(0,0,0,0.6);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    
    --logo-filter: brightness(0) invert(1);
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --text: #0F172A;
  --muted: #64748B;
  --border: #E2E8F0;
  --card-bg: rgba(255, 255, 255, 0.8);
  --card-border: rgba(255, 255, 255, 0.6);
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(255, 255, 255, 0.4);
  --input-bg: #FFFFFF;
  --table-head-bg: #F8FAFC;
  --table-row-hover: #F1F5F9;
  --text-heading: #0F172A;
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 40px -12px rgba(79, 70, 229, 0.15);
  --logo-filter: none;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0F172A;
  --bg-soft: #1E293B;
  --text: #E2E8F0;
  --muted: #94A3B8;
  --border: #1E293B;
  --card-bg: rgba(30, 41, 59, 0.7);
  --card-border: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(30, 41, 59, 0.6);
  --glass-border: rgba(255, 255, 255, 0.05);
  --input-bg: #0F172A;
  --table-head-bg: #0F172A;
  --table-row-hover: #334155;
  --text-heading: #F8FAFC;
  --shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
  --shadow-lg: 0 20px 40px -12px rgba(0,0,0,0.6);
  --logo-filter: brightness(0) invert(1);
}

*{box-sizing:border-box}

html {
    height: 100%; 
    width: 100vw; 
    overflow-x: hidden;
}

body {
  margin: 0;
  padding: 0;
  padding-top: var(--header-height); /* Override in admin.css if needed */
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
  line-height: 1.6;
  scroll-behavior: auto;
  transition: background-color 0.3s ease, color 0.3s ease;
  width: 100%;
  overflow-x: hidden; 
  overscroll-behavior-y: none; 
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--text-heading);
    letter-spacing: -0.025em;
}
h1{
  font-size:clamp(32px,5.5vw,56px);
  line-height:1.1;
  margin:0 0 16px;
  font-weight: 800;
}
h2{
  font-size:clamp(24px,3.2vw,36px);
  margin:0 0 24px;
  font-weight: 800;
}
.text-gradient {
    background: linear-gradient(135deg, var(--text-heading) 30%, var(--blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (max-width: 380px) {
    .container { padding: 0 16px; }
}

.text-block{
  max-width:720px;
  margin:0 auto;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  height:44px;
  padding:0 24px;
  border-radius:12px;
  border:1px solid transparent;
  background:var(--blue);
  color:#fff;
  font-weight:600;
  font-size:15px;
  line-height:1;
  text-decoration:none;
  white-space:nowrap;
  box-shadow: 0 4px 14px var(--blue-glow);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}
.btn:hover{
  background:var(--blue600);
  transform:translateY(-2px);
  box-shadow: 0 8px 24px var(--blue-glow);
}
.btn:active{
  transform:translateY(0);
  box-shadow: 0 2px 6px var(--blue-glow);
}
.btn-nav{
  background:linear-gradient(135deg,#4F46E5,#4338CA);
  border:none;
}
.btn-outline{
  background:transparent;
  color:var(--text);
  border:1px solid var(--border);
  box-shadow:none;
}
.btn-outline:hover{
  background:var(--bg-soft);
  color:var(--text);
  border-color:var(--blue);
}

.small{font-size:13px;}
.dim{color:var(--muted);}

/* Form Elements Global */
.form label, .auth-card label, .admin-form label {
  display:block;font-weight:600;
  margin:12px 0 6px;
  font-size: 13px;
  color: var(--text-heading);
}
.form input:not([type="checkbox"]), 
.form textarea,
.auth-card input:not([type="checkbox"]),
.admin-form input:not([type="checkbox"]), 
.admin-form textarea, 
.admin-form select {
  width:100%;padding:12px 16px;
  border:1px solid var(--border);border-radius:12px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 15px;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
  font-family: inherit;
}
.form input:focus, .form textarea:focus,
.auth-card input:focus,
.admin-form input:focus, .admin-form textarea:focus, .admin-form select:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px var(--blue-glow);
}
.field-error{
  font-size:12px;
  color:#dc2626;
  margin-top:4px;
  min-height:8px;
}
.input-error{
  border-color:#dc2626 !important;
  background-color: #FEF2F2 !important;
}

/* Toast Notifications */
.form-toast{
  position:fixed;
  top:100px;
  left:50%;
  transform:translateX(-50%);
  padding:12px 24px;
  border-radius:12px;
  background:#10B981;
  color:#fff;
  font-size:14px;
  font-weight: 600;
  box-shadow:0 10px 30px rgba(0,0,0,0.15);
  opacity:0;
  pointer-events:none;
  z-index:99999;
  text-align:center;
  transition:opacity .3s ease, transform .3s ease;
  white-space: nowrap;
}
.form-toast--visible{
  opacity:1;
  transform:translateX(-50%) translateY(10px);
}
.form-toast--error{
  background:#EF4444;
}
@media (max-width: 640px){
  .form-toast{
    top: 90px;
    width: 92%;
    max-width: 400px;
    white-space: normal;
    line-height: 1.4;
    padding: 14px 16px;
  }
}