/* ============================================================================
   RSSMS — Liquid Glass Design System
   Layered ON TOP of the app's existing Tailwind (CDN) markup. It does not change
   layout or flow — it restyles surfaces (panels, cards, sidebar, topbar, inputs,
   buttons, modals, tables) with a frosted "liquid glass" aesthetic, plus an
   animated aurora background for the login. Dark mode keys off the `.dark` class
   that the app already toggles on <html>.
   ============================================================================ */

:root {
  /* Light theme glass tokens */
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.72);
  --glass-bg-soft: rgba(255, 255, 255, 0.38);
  --glass-border: rgba(255, 255, 255, 0.65);
  --glass-border-soft: rgba(255, 255, 255, 0.35);
  --glass-highlight: rgba(255, 255, 255, 0.85);
  --glass-shadow: 0 8px 32px rgba(15, 23, 42, 0.12), 0 2px 8px rgba(15, 23, 42, 0.06);
  --glass-shadow-lg: 0 24px 64px rgba(15, 23, 42, 0.22), 0 8px 24px rgba(15, 23, 42, 0.12);
  --glass-blur: 18px;
  --glass-saturate: 180%;
  --glass-text: #0f172a;
  --glass-text-soft: #475569;
  --accent: #1e3a8a;       /* university blue */
  --accent-2: #2563eb;
  --accent-gold: #d4af37;  /* university gold */
}

.dark {
  /* Dark theme glass tokens */
  --glass-bg: rgba(30, 32, 44, 0.55);
  --glass-bg-strong: rgba(30, 32, 44, 0.74);
  --glass-bg-soft: rgba(30, 32, 44, 0.4);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-border-soft: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.45), 0 2px 8px rgba(0, 0, 0, 0.3);
  --glass-shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.6), 0 8px 24px rgba(0, 0, 0, 0.4);
  --glass-text: #f1f5f9;
  --glass-text-soft: #cbd5e1;
}

/* ----- Core frosted surface ------------------------------------------------ */
.glass,
.glass-panel,
.glass-card,
.glass-sidebar,
.glass-topbar,
.glass-modal {
  position: relative;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
}

/* Specular sheen across the top edge — the signature "liquid glass" gleam. */
.glass::before,
.glass-card::before,
.glass-panel::before,
.glass-modal::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.28) 0%,
    rgba(255, 255, 255, 0.06) 32%,
    rgba(255, 255, 255, 0) 60%
  );
  pointer-events: none;
  z-index: 0;
}
.glass > *,
.glass-card > *,
.glass-panel > *,
.glass-modal > * {
  position: relative;
  z-index: 1;
}

.glass-card { border-radius: 1.25rem; }
.glass-panel { border-radius: 1rem; }
.glass-modal { border-radius: 1.5rem; box-shadow: var(--glass-shadow-lg), inset 0 1px 0 var(--glass-highlight); }

.glass-strong { background: var(--glass-bg-strong); }
.glass-soft { background: var(--glass-bg-soft); }

/* Hover lift for interactive cards */
.glass-hover {
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease;
}
.glass-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-lg), inset 0 1px 0 var(--glass-highlight);
}

/* ----- Sidebar & topbar ---------------------------------------------------- */
.glass-sidebar {
  border-radius: 0;
  border-top: none;
  border-bottom: none;
  border-left: none;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(24px) saturate(var(--glass-saturate));
  backdrop-filter: blur(24px) saturate(var(--glass-saturate));
}
.glass-topbar {
  border-radius: 0;
  border-left: none;
  border-right: none;
  border-top: none;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(20px) saturate(var(--glass-saturate));
  backdrop-filter: blur(20px) saturate(var(--glass-saturate));
}

/* ----- Inputs -------------------------------------------------------------- */
.glass-input {
  background: var(--glass-bg-soft) !important;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border) !important;
  color: var(--glass-text) !important;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.glass-input::placeholder { color: var(--glass-text-soft); opacity: 0.7; }
.glass-input:focus {
  outline: none;
  border-color: var(--accent-2) !important;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.18);
  background: var(--glass-bg-strong) !important;
}

/* ----- Buttons ------------------------------------------------------------- */
.glass-btn {
  position: relative;
  overflow: hidden;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: var(--glass-text);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.glass-btn:hover { transform: translateY(-1px); background: var(--glass-bg-strong); }
.glass-btn:active { transform: translateY(0) scale(0.985); }

.glass-btn-primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.glass-btn-primary:hover {
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* Animated light streak that sweeps across primary buttons on hover. */
.glass-btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}
.glass-btn-primary:hover::after { left: 130%; }

/* ----- Tables -------------------------------------------------------------- */
.glass-table {
  background: var(--glass-bg-soft);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border-soft);
  border-radius: 1rem;
  overflow: hidden;
}
.glass-table thead { background: var(--glass-bg-strong); }

/* ----- Aurora / animated background (auth pages) --------------------------- */
/* Light: academic pale sky/cream. Dark: deep navy aurora.                     */
.aurora-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  /* Light mode — soft academic sky */
  background: linear-gradient(145deg,
    #e0eaff 0%, #dbeafe 22%, #eff6ff 44%, #fefce8 68%, #e0f2fe 100%);
}
.dark .aurora-bg {
  background:
    radial-gradient(120% 120% at 0% 0%, #1e3a8a 0%, #0f172a 45%, #020617 100%);
}
.aurora-bg::before,
.aurora-bg::after {
  content: "";
  position: absolute;
  width: 60vmax;
  height: 60vmax;
  border-radius: 50%;
  animation: aurora-float 22s ease-in-out infinite alternate;
}
/* Light mode blobs: subtle navy/gold tints, normal blend */
.aurora-bg::before {
  top: -20%; left: -10%;
  background: radial-gradient(ellipse 70% 60% at 20% 20%, rgba(30,58,138,.16), transparent 65%);
  filter: blur(70px);
  opacity: 0.75;
  mix-blend-mode: normal;
}
.aurora-bg::after {
  bottom: -25%; right: -10%;
  background: radial-gradient(ellipse 60% 50% at 80% 80%, rgba(212,175,55,.13), transparent 60%);
  filter: blur(70px);
  opacity: 0.65;
  mix-blend-mode: normal;
  animation-duration: 28s;
  animation-direction: alternate-reverse;
}
/* Dark mode blobs: vibrant blue/indigo, screen blend */
.dark .aurora-bg::before {
  background: radial-gradient(circle at 30% 30%, #3b82f6, transparent 60%);
  filter: blur(80px);
  opacity: 0.55;
  mix-blend-mode: screen;
}
.dark .aurora-bg::after {
  background: radial-gradient(circle at 70% 70%, #6366f1, transparent 60%);
  filter: blur(80px);
  opacity: 0.55;
  mix-blend-mode: screen;
}
@keyframes aurora-float {
  0%   { transform: translate(0, 0) scale(1) rotate(0deg); }
  50%  { transform: translate(6vw, 4vh) scale(1.15) rotate(20deg); }
  100% { transform: translate(-4vw, -6vh) scale(1.05) rotate(-15deg); }
}

/* ----- rssms-aurora — shared animated background for ALL pages ------------- */
/* Fixed <div class="rssms-aurora"> at top of every <body>.                    */
/* Light: academic pale sky. Dark: deep navy aurora.                            */
.rssms-aurora {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background: linear-gradient(145deg,
    #e0eaff 0%, #dbeafe 20%, #eff6ff 42%, #fefce8 68%, #e0f2fe 100%);
  transition: background 0.5s ease;
}
.dark .rssms-aurora {
  background: radial-gradient(120% 120% at 0% 0%,
    #1e3a8a 0%, #0f172a 45%, #020617 100%);
}
.rssms-aurora::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 10% 10%, rgba(30,58,138,.14) 0%, transparent 65%),
    radial-gradient(ellipse 55% 45% at 88% 85%, rgba(212,175,55,.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 45% at 55% 40%, rgba(37,99,235,.07) 0%, transparent 65%);
  animation: rssms-pulse 14s ease-in-out infinite alternate;
}
.dark .rssms-aurora::before {
  background:
    radial-gradient(ellipse 70% 60% at 0%   0%,  rgba(59,130,246,.35) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 100% 100%, rgba(99,102,241,.25) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 50%  50%, rgba(15,32,68,.4)    0%, transparent 70%);
}
.rssms-aurora::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 40% at 72% 18%, rgba(37,99,235,.06) 0%, transparent 55%);
  animation: rssms-pulse 20s ease-in-out infinite alternate-reverse;
}
.dark .rssms-aurora::after {
  background: radial-gradient(ellipse 60% 50% at 72% 28%, rgba(59,130,246,.22) 0%, transparent 60%);
}
@keyframes rssms-pulse {
  from { opacity: .75; transform: scale(1)    rotate(0deg); }
  to   { opacity: 1;   transform: scale(1.06) rotate(4deg); }
}

/* ----- rssms-grid — graph-paper overlay (all pages) ----------------------- */
.rssms-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(30,58,138,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,58,138,.06) 1px, transparent 1px);
  background-size: 48px 48px;
}
.dark .rssms-grid {
  background-image:
    linear-gradient(rgba(212,175,55,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,175,55,.04) 1px, transparent 1px);
}

/* Floating glass cubes (evolves the original login's .box-area animation). */
.glass-orbs { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.glass-orbs span {
  position: absolute;
  display: block;
  list-style: none;
  background: rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 30%;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
  bottom: -160px;
  animation: orb-rise 24s linear infinite;
}
.glass-orbs span:nth-child(1)  { left: 84%; width: 84px;  height: 84px;  animation-delay: 0s; }
.glass-orbs span:nth-child(2)  { left: 12%; width: 30px;  height: 30px;  animation-delay: 2s;  animation-duration: 12s; }
.glass-orbs span:nth-child(3)  { left: 70%; width: 110px; height: 110px; animation-delay: 5s; }
.glass-orbs span:nth-child(4)  { left: 42%; width: 150px; height: 150px; animation-delay: 0s;  animation-duration: 18s; }
.glass-orbs span:nth-child(5)  { left: 65%; width: 44px;  height: 44px;  animation-delay: 0s; }
.glass-orbs span:nth-child(6)  { left: 15%; width: 120px; height: 120px; animation-delay: 4s; }
.glass-orbs span:nth-child(7)  { left: 35%; width: 60px;  height: 60px;  animation-delay: 8s; }
.glass-orbs span:nth-child(8)  { left: 55%; width: 26px;  height: 26px;  animation-delay: 15s; animation-duration: 40s; }
.glass-orbs span:nth-child(9)  { left: 25%; width: 90px;  height: 90px;  animation-delay: 3s;  animation-duration: 14s; }
.glass-orbs span:nth-child(10) { left: 88%; width: 52px;  height: 52px;  animation-delay: 11s; }
@keyframes orb-rise {
  0%   { transform: translateY(0) rotate(0deg);   opacity: 0; }
  10%  { opacity: 1; }
  85%  { opacity: 1; }
  100% { transform: translateY(-1040px) rotate(360deg); opacity: 0; }
}

/* Respect reduced-motion preferences. */
@media (prefers-reduced-motion: reduce) {
  .aurora-bg::before, .aurora-bg::after, .glass-orbs span,
  .glass-btn-primary::after { animation: none; transition: none; }
}

/* Entrance animation reused from the original login. */
@keyframes fadeInUp {
  0%   { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}
.animate-fade-in-up { animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards; }

/* Autofill fix carried over from the PHP login. */
input:-webkit-autofill, input:-webkit-autofill:hover,
input:-webkit-autofill:focus, input:-webkit-autofill:active {
  -webkit-box-shadow: 0 0 0 30px rgba(255,255,255,0.9) inset !important;
  -webkit-text-fill-color: #0f172a !important;
  caret-color: #0f172a;
}
.dark input:-webkit-autofill, .dark input:-webkit-autofill:hover,
.dark input:-webkit-autofill:focus, .dark input:-webkit-autofill:active {
  -webkit-box-shadow: 0 0 0 30px rgba(30,32,44,0.95) inset !important;
  -webkit-text-fill-color: #fff !important;
  caret-color: #fff;
}

[x-cloak] { display: none !important; }
