/* ==========================================================
   CCHPS Room Booking System — Design tokens & base
   ========================================================== */
:root{
  --primary:#6366f1; --primary-dark:#4f46e5; --primary-soft:#eef2ff;
  --violet:#8b5cf6;  --violet-soft:#f5f3ff;
  --sky:#0ea5e9;     --sky-soft:#f0f9ff;
  --emerald:#10b981; --emerald-soft:#ecfdf5;
  --amber:#f59e0b;   --amber-soft:#fffbeb;
  --rose:#f43f5e;    --rose-soft:#fff1f2;
  --pink:#ec4899;    --pink-soft:#fdf2f8;
  --teal:#14b8a6;    --teal-soft:#f0fdfa;
  --slate:#64748b;   --slate-soft:#f8fafc;

  --bg:#f5f7fb; --surface:#ffffff; --surface-2:#fbfcfe;
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --faint:#94a3b8;
  --line:#e8ecf3; --line-2:#f1f5f9;

  --g-primary:linear-gradient(135deg,#6366f1,#8b5cf6);
  --g-sky:linear-gradient(135deg,#0ea5e9,#38bdf8);
  --g-emerald:linear-gradient(135deg,#10b981,#34d399);
  --g-amber:linear-gradient(135deg,#f59e0b,#fbbf24);
  --g-rose:linear-gradient(135deg,#f43f5e,#fb7185);
  --g-pink:linear-gradient(135deg,#ec4899,#f472b6);
  --g-violet:linear-gradient(135deg,#8b5cf6,#a78bfa);
  --g-slate:linear-gradient(135deg,#64748b,#94a3b8);

  --sh-xs:0 1px 2px rgba(15,23,42,.05);
  --sh-sm:0 2px 8px rgba(15,23,42,.06);
  --sh:0 6px 20px rgba(15,23,42,.07);
  --sh-lg:0 14px 38px rgba(15,23,42,.10);
  --sh-xl:0 24px 60px rgba(15,23,42,.14);

  --r-sm:10px; --r:14px; --r-lg:18px; --r-xl:24px; --r-full:999px;
  --tr:.25s cubic-bezier(.4,0,.2,1);
  --sidebar-w:264px; --topbar-h:68px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
img,svg{display:block;max-width:100%}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:9px}
::-webkit-scrollbar-thumb:hover{background:#94a3b8}

/* ------------------------------------------------- typography */
h1,h2,h3,h4{line-height:1.25;font-weight:700;letter-spacing:-.015em}
h1{font-size:1.6rem}h2{font-size:1.2rem}h3{font-size:1rem}h4{font-size:.9rem}
.muted{color:var(--muted)}.faint{color:var(--faint)}
.small{font-size:.78rem}.tiny{font-size:.7rem}
.bold{font-weight:600}.center{text-align:center}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------------------------------------------------- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border:1px solid transparent;border-radius:var(--r-sm);
  font-weight:600;font-size:.86rem;cursor:pointer;transition:var(--tr);white-space:nowrap;background:none}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}
.btn-primary{background:var(--g-primary);color:#fff;box-shadow:0 4px 14px rgba(99,102,241,.32)}
.btn-primary:hover:not(:disabled){box-shadow:0 8px 22px rgba(99,102,241,.42);transform:translateY(-1px)}
.btn-success{background:var(--g-emerald);color:#fff;box-shadow:0 4px 14px rgba(16,185,129,.3)}
.btn-danger{background:var(--g-rose);color:#fff;box-shadow:0 4px 14px rgba(244,63,94,.3)}
.btn-warn{background:var(--g-amber);color:#fff;box-shadow:0 4px 14px rgba(245,158,11,.3)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-2)}
.btn-ghost:hover:not(:disabled){background:var(--slate-soft);border-color:#cbd5e1}
.btn-soft{background:var(--primary-soft);color:var(--primary-dark)}
.btn-soft:hover{background:#e0e7ff}
.btn-sm{padding:7px 13px;font-size:.78rem;border-radius:9px}
.btn-xs{padding:5px 10px;font-size:.72rem;border-radius:8px}
.btn-icon{width:38px;height:38px;padding:0;border-radius:11px}
.btn-block{width:100%}

/* ------------------------------------------------------ forms */
.field{margin-bottom:16px}
.field label{display:block;font-size:.78rem;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field label .req{color:var(--rose)}
.input,.select,.textarea{width:100%;padding:11px 14px;border:1.5px solid var(--line);
  border-radius:var(--r-sm);background:var(--surface);transition:var(--tr);font-size:.88rem}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(99,102,241,.12)}
.input::placeholder{color:var(--faint)}
.textarea{resize:vertical;min-height:88px}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8.5 1.5 4h9z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:36px}
.input-icon{position:relative}
.input-icon i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--faint);font-size:.85rem;pointer-events:none}
.input-icon .input{padding-left:40px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.form-note{font-size:.74rem;color:var(--faint);margin-top:6px}

/* ---------------------------------------------------- avatars */
.avatar{width:38px;height:38px;border-radius:var(--r-full);display:grid;place-items:center;
  color:#fff;font-weight:700;font-size:.76rem;flex:none;box-shadow:var(--sh-xs);letter-spacing:.02em}
.avatar.xs{width:26px;height:26px;font-size:.62rem}
.avatar.sm{width:32px;height:32px;font-size:.68rem}
.avatar.lg{width:52px;height:52px;font-size:1rem}
.avatar-stack{display:flex}
.avatar-stack .avatar{margin-left:-9px;border:2.5px solid #fff}
.avatar-stack .avatar:first-child{margin-left:0}

/* ----------------------------------------------------- badges */
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 11px;border-radius:var(--r-full);
  font-size:.7rem;font-weight:700;letter-spacing:.02em}
.badge i{font-size:.62rem}
.b-primary{background:var(--primary-soft);color:var(--primary-dark)}
.b-success{background:var(--emerald-soft);color:#047857}
.b-warn{background:var(--amber-soft);color:#b45309}
.b-danger{background:var(--rose-soft);color:#be123c}
.b-info{background:var(--sky-soft);color:#0369a1}
.b-violet{background:var(--violet-soft);color:#6d28d9}
.b-pink{background:var(--pink-soft);color:#be185d}
.b-muted{background:var(--slate-soft);color:var(--slate)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}
.dot-live{animation:blink 1.4s ease-in-out infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ------------------------------------------------------ cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm)}
.card-pad{padding:20px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 20px;border-bottom:1px solid var(--line-2)}
.card-head h3{display:flex;align-items:center;gap:9px;font-size:.95rem}
.card-head h3 i{color:var(--primary)}
.card-body{padding:18px 20px}

/* --------------------------------------------------- utility */
.flex{display:flex}.aic{align-items:center}.jcb{justify-content:space-between}
.jcc{justify-content:center}.wrap{flex-wrap:wrap}.col{flex-direction:column}
.gap-4{gap:4px}.gap-6{gap:6px}.gap-8{gap:8px}.gap-10{gap:10px}.gap-14{gap:14px}.gap-18{gap:18px}
.mt-8{margin-top:8px}.mt-14{margin-top:14px}.mt-20{margin-top:20px}.mb-14{margin-bottom:14px}
.grow{flex:1}.hide{display:none!important}
.spin{animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.skeleton{background:linear-gradient(90deg,#eef2f7 25%,#f8fafc 50%,#eef2f7 75%);
  background-size:200% 100%;animation:shimmer 1.3s infinite;border-radius:var(--r-sm)}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.empty{padding:46px 20px;text-align:center;color:var(--muted)}
.empty i{font-size:2.4rem;color:#dbe3ee;margin-bottom:12px;display:block}
.empty h4{color:var(--ink-2);margin-bottom:5px}

/* ============================== LOGIN / AUTH PAGE ============== */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}
.auth-art{position:relative;overflow:hidden;background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 45%,#0ea5e9 100%);
  display:flex;flex-direction:column;justify-content:center;padding:60px;color:#fff}
.auth-art::before,.auth-art::after{content:'';position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.auth-art::before{width:460px;height:460px;background:#ec4899;top:-140px;right:-120px;animation:float1 16s ease-in-out infinite}
.auth-art::after{width:400px;height:400px;background:#22d3ee;bottom:-130px;left:-90px;animation:float2 19s ease-in-out infinite}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(-50px,60px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(60px,-50px)}}
.auth-art-inner{position:relative;z-index:2;max-width:470px}
.auth-logo{width:70px;height:70px;border-radius:20px;background:rgba(255,255,255,.16);backdrop-filter:blur(10px);
  display:grid;place-items:center;font-size:1.8rem;margin-bottom:28px;border:1px solid rgba(255,255,255,.25)}
.auth-art h1{font-size:2.25rem;margin-bottom:14px;letter-spacing:-.03em}
.auth-art p{opacity:.9;font-size:.95rem;line-height:1.75}
.auth-feats{margin-top:38px;display:grid;gap:13px}
.auth-feat{display:flex;align-items:center;gap:13px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);padding:13px 17px;border-radius:var(--r);backdrop-filter:blur(8px);font-size:.85rem}
.auth-feat i{width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.2);display:grid;place-items:center;flex:none}
.auth-side{display:flex;align-items:center;justify-content:center;padding:40px 32px;background:var(--surface)}
.auth-box{width:100%;max-width:400px}
.auth-box h2{font-size:1.55rem;margin-bottom:6px}
.auth-tabs{display:flex;background:var(--slate-soft);border-radius:var(--r-sm);padding:4px;margin:22px 0}
.auth-tab{flex:1;padding:9px;border:none;background:none;border-radius:8px;font-weight:600;
  font-size:.82rem;color:var(--muted);cursor:pointer;transition:var(--tr)}
.auth-tab.active{background:var(--surface);color:var(--primary-dark);box-shadow:var(--sh-xs)}
.alert{padding:12px 15px;border-radius:var(--r-sm);font-size:.82rem;margin-bottom:16px;
  display:flex;gap:10px;align-items:flex-start;line-height:1.5}
.alert i{margin-top:2px}
.alert-error{background:var(--rose-soft);color:#be123c;border:1px solid #fecdd3}
.alert-ok{background:var(--emerald-soft);color:#047857;border:1px solid #a7f3d0}
.alert-info{background:var(--sky-soft);color:#0369a1;border:1px solid #bae6fd}
.alert-warn{background:var(--amber-soft);color:#b45309;border:1px solid #fde68a}
.auth-foot{margin-top:24px;text-align:center;font-size:.76rem;color:var(--faint);line-height:1.7}
@media(max-width:900px){
  .auth-wrap{grid-template-columns:1fr}
  .auth-art{display:none}
  .auth-side{min-height:100vh}
}