/* ==========================================================================
   1. GLOBAL GEN-Z OBSIDIAN PALETTE
   ========================================================================== */
:root {
  --bg: #06080d;
  --bg2: #0f121a;
  --card: #141824;
  --card2: #1b2030;
  --text: #f3f5f9;
  --dim: #848c9e;
  --border: #232a3d;
  --border2: #343e59;

  --accent: #38bdf8;
  --accent2: #7dd3fc;
  --pink: #f43f5e;
  --pink2: #fb7185;
  --lime: #10b981;
  --amber: #f59e0b;

  --ag: rgba(56, 189, 248, 0.25);
  --r: 24px;
  --rs: 18px;
  --rx: 10px;

  --f: 'Plus Jakarta Sans', system-ui, sans-serif;
  --m: 'JetBrains Mono', monospace;
  --t: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: var(--f);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 32px);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

#ptc { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

/* ==========================================================================
   2. 🔥 GPU ACCELERATED 60FPS BORDER 🔥 (No Blurs)
   ========================================================================== */
.ww {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 760px;
  border-radius: calc(var(--r) + 2px);
  padding: 3px; 
  /* Ultra-fast linear background pan */
  background: linear-gradient(90deg, var(--accent), var(--pink), var(--lime), var(--accent));
  background-size: 300% 100%;
  animation: gpuPan 6s linear infinite;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
  transition: max-width var(--t);
  transform: translateZ(0); /* Hardware acceleration */
}
@keyframes gpuPan { 0% { background-position: 0% 0; } 100% { background-position: -300% 0; } }

.w {
  background: var(--card);
  border-radius: var(--r);
  position: relative;
  overflow: hidden;
  z-index: 1;
  height: 100%;
  animation: wIn 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes wIn { from { opacity: 0; transform: translateY(30px) scale(0.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
.w::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 20% 0%, rgba(56, 189, 248, 0.08), transparent 60%),
              radial-gradient(ellipse at 80% 100%, rgba(244, 63, 94, 0.06), transparent 50%);
  pointer-events: none; z-index: 0;
}
.wi { padding: 28px 24px 24px; position: relative; z-index: 1; }

/* ==========================================================================
   3. HEADER & TIME SIMULATOR
   ========================================================================== */
.hd { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; animation: fD 0.5s 0.12s both; }
@keyframes fD { from { opacity: 0; transform: translateY(-14px); } to { opacity: 1; transform: translateY(0); } }

.hd .tm { font-family: var(--m); font-size: clamp(32px, 5vw, 38px); font-weight: 700; letter-spacing: -1.5px; line-height: 1; background: linear-gradient(135deg, var(--text), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; cursor: pointer; transition: transform var(--t), filter var(--t); display: flex; align-items: center; gap: 8px; }
.hd .tm:hover { transform: scale(1.03); filter: drop-shadow(0 0 12px var(--ag)); }
.hd .tm .ap { font-size: 16px; font-weight: 600; -webkit-text-fill-color: var(--accent); }
.sim-badge { font-family: var(--f); font-size: 9px; font-weight: 800; -webkit-text-fill-color: #000; background: var(--amber); padding: 3px 8px; border-radius: 6px; letter-spacing: 0.5px; animation: pulse 1.5s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.hd .dr { display: flex; align-items: center; gap: 8px; margin-top: 8px; font-size: 14px; color: var(--dim); font-weight: 500; }
.hd .db { background: rgba(56, 189, 248, 0.12); color: var(--accent2); font-weight: 700; padding: 3px 12px; border-radius: 20px; font-size: 11px; border: 1px solid rgba(56, 189, 248, 0.2); }

.eb { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border); border-radius: 14px; width: 48px; height: 48px; font-size: 20px; cursor: pointer; transition: transform var(--t), border-color var(--t), box-shadow var(--t), color var(--t); display: flex; align-items: center; justify-content: center; color: var(--dim); position: relative; overflow: hidden; }
.eb::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, var(--accent), var(--pink)); opacity: 0; transition: opacity var(--t); }
.eb:hover { color: #fff; border-color: transparent; transform: rotate(90deg) scale(1.08); box-shadow: 0 0 24px var(--ag); }
.eb:hover::before { opacity: 1; }
.eb span { position: relative; z-index: 1; }

/* ==========================================================================
   4. DASHBOARD CARDS
   ========================================================================== */
.cc { border-radius: var(--rs); padding: 24px 26px 22px; color: #fff; margin-bottom: 16px; position: relative; overflow: hidden; background: linear-gradient(135deg, #0f172a 0%, #083344 100%); border: 1px solid #164e63; box-shadow: 0 12px 32px rgba(0,0,0,0.5); animation: cSI 0.5s 0.22s both; text-align: center; }
@keyframes cSI { from { opacity: 0; transform: translateX(-24px); } to { opacity: 1; transform: translateX(0); } }

.cc .lb { display: flex; justify-content: space-between; align-items: center; font-size: 11px; font-weight: 800; letter-spacing: 1px; opacity: 0.85; margin-bottom: 12px; position: relative; z-index: 1; color: var(--accent2); }
.cc .lb-left { display: flex; align-items: center; gap: 7px; text-transform: uppercase; }
.cc .lb-right { font-family: var(--m); font-size: 11px; background: rgba(0,0,0,0.3); padding: 3px 10px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.1); color: #fff;}
.cc .pd { width: 7px; height: 7px; background: var(--accent); border-radius: 50%; animation: pDot 1.5s ease-in-out infinite; box-shadow: 0 0 10px var(--accent); }
@keyframes pDot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.2; transform: scale(0.5); } }

.cc .tt { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; position: relative; z-index: 1; text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3); margin: 6px 0; }
.cc .mr { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 6px; font-size: 15px; opacity: 0.95; position: relative; z-index: 1; }
.cc .rp { background: rgba(0, 0, 0, 0.2); padding: 4px 16px; border-radius: 20px; font-weight: 700; border: 1px solid rgba(255, 255, 255, 0.1); }

.cc .ps { margin-top: 22px; position: relative; z-index: 1; }
.cc .pi { display: flex; justify-content: flex-end; font-size: 13px; opacity: 0.8; margin-bottom: 8px; font-weight: 600; }
.cc .pt { height: 8px; background: rgba(0, 0, 0, 0.4); border-radius: 10px; overflow: hidden; position: relative; padding: 2px; }
.cc .pf { height: 100%; background: linear-gradient(90deg, #38bdf8, #34d8ac, #f43f5e); background-size: 200% 100%; border-radius: 10px; transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1); width: 0%; position: relative; box-shadow: 0 0 16px rgba(56,189,248,0.8); animation: barShimmer 3s linear infinite; will-change: background-position; }
@keyframes barShimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }
.cc .rm { font-size: 14px; font-weight: 600; opacity: 0.9; margin-top: 10px; text-align: center; }

.nc { background: var(--card2); border-radius: var(--rs); padding: 20px 24px; margin-bottom: 20px; border: 1px solid var(--border); position: relative; overflow: hidden; transition: border-color var(--t), box-shadow var(--t); text-align: center; }
.nc:hover { border-color: rgba(56, 189, 248, 0.4); box-shadow: 0 0 24px rgba(56, 189, 248, 0.08); }
.nc::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--accent), transparent); opacity: 0.5; }
.nc .lb { display: block; width: 100%; text-align: center; font-size: 10px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; color: var(--dim); margin-bottom: 10px; }
.nc .rw { display: flex; justify-content: center; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.nc .rw .tt { font-size: 22px; font-weight: 700; }
.nc .rw .eta { font-size: 13px; font-weight: 700; color: var(--accent2); background: rgba(56, 189, 248, 0.12); padding: 5px 14px; border-radius: 20px; border: 1px solid rgba(56, 189, 248, 0.25); white-space: nowrap; }
.nc .sb { font-size: 14px; color: var(--dim); margin-top: 6px; font-weight: 500; }
.nc .sb .rm { font-weight: 700; color: var(--text); }

.cs { animation: fU 0.5s 0.42s both; margin-bottom: 20px; }
@keyframes fU { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.cs-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.csh { font-size: 14px; font-weight: 800; color: var(--text); letter-spacing: 0.5px; text-transform: uppercase; }
.day-nav-btn { background: var(--card2); border: 1px solid var(--border); color: var(--accent2); padding: 6px 14px; border-radius: 18px; font-size: 12px; font-weight: 700; cursor: pointer; transition: transform var(--t), background var(--t), border-color var(--t); }
.day-nav-btn:hover { border-color: var(--accent); background: rgba(56,189,248,0.15); transform: translateY(-1px); }

.chg { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; }

.ch { display: grid; grid-template-columns: 85px 1fr 85px; align-items: center; gap: 10px; background: var(--card2); border: 1px solid var(--border); border-radius: var(--rx); padding: 16px 14px; cursor: pointer; transition: transform var(--t), box-shadow var(--t), border-color var(--t); position: relative; overflow: hidden; transform: translateZ(0); }
.ch::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; border-radius: 0 4px 4px 0; transition: width var(--t); }
.ch:hover { border-color: var(--border2); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5); }
.ch.ca { background: rgba(14, 165, 233, 0.15) !important; border: 2px solid #38bdf8 !important; box-shadow: 0 0 28px rgba(56, 189, 248, 0.45), inset 0 0 16px rgba(56, 189, 248, 0.25) !important; transform: translateY(-2px) scale(1.01); animation: neonPulse 2s infinite alternate; }
@keyframes neonPulse { 0% { box-shadow: 0 0 16px rgba(56, 189, 248, 0.4), inset 0 0 8px rgba(56, 189, 248, 0.2); } 100% { box-shadow: 0 0 28px rgba(56, 189, 248, 0.6), inset 0 0 16px rgba(56, 189, 248, 0.35); } }
.ch.cp { opacity: 0.35; filter: saturate(0.3); }

.cht { font-family: var(--m); font-size: 13px; color: var(--dim); line-height: 1.4; font-weight: 600; text-align: center; margin: 0; padding: 0; }
.chi { display: flex; flex-direction: column; gap: 4px; text-align: center; justify-content: center; }
.chn { font-size: 16px; font-weight: 800; line-height: 1.2; transition: color var(--t); }
.chr { font-size: 12px; color: var(--dim); white-space: nowrap; font-weight: 600; }
.ctb { font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.5px; padding: 4px 10px; border-radius: 6px; justify-self: end; white-space: nowrap; }

.vrw { animation: fU 0.5s 0.52s both; }
.vrb { width: 100%; background: transparent; color: var(--text); border: 1.5px solid var(--border); border-radius: var(--rs); padding: 18px; font-size: 16px; font-weight: 700; cursor: pointer; transition: transform var(--t), box-shadow var(--t), border-color var(--t); font-family: var(--f); display: flex; align-items: center; justify-content: center; gap: 10px; position: relative; overflow: hidden; letter-spacing: 0.3px; transform: translateZ(0); }
.vrb::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, var(--accent), var(--pink)); opacity: 0; transition: opacity var(--t); }
.vrb:hover::before { opacity: 1; }
.vrb:hover { border-color: transparent; transform: translateY(-2px); box-shadow: 0 8px 30px var(--ag); }
.vrb span { position: relative; z-index: 1; }
.vrb .ar { position: relative; z-index: 1; transition: transform var(--t); display: inline-block; }
.vrb:hover .ar { transform: translateX(6px); }

/* ==========================================================================
   4. MODALS & FLUID HORIZONTAL MATRIX TIMETABLE
   ========================================================================== */
/* 🔥 ZERO BLUR BACKGROUND TO FIX MOBILE FPS LAG 🔥 */
.mo { display: none; position: fixed; inset: 0; background: rgba(6, 8, 13, 0.98); align-items: center; justify-content: center; z-index: 999; padding: 12px; transition: opacity 0.3s ease; }
.mo.open { display: flex; animation: mBg 0.25s ease; }
@keyframes mBg { from { opacity: 0; } to { opacity: 1; } }

.md { background: var(--card); border-radius: var(--r); width: 100%; max-height: 92vh; overflow-y: auto; box-shadow: 0 24px 80px rgba(0, 0, 0, 0.8); border: 1px solid var(--border); animation: mIn 0.35s cubic-bezier(0.16, 1, 0.3, 1); position: relative;}
.md.md-wide { max-width: 96vw; }
@keyframes mIn { from { opacity: 0; transform: translateY(30px) scale(0.96); } to { opacity: 1; transform: translateY(0) scale(1); } }

/* Absolute Close Button for cleanly stripped header */
.cls.absolute-close { position: absolute; top: 16px; left: 16px; z-index: 100; background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 10px; width: 36px; height: 36px; font-size: 16px; cursor: pointer; color: var(--dim); transition: transform var(--t), color var(--t), background var(--t); display: flex; align-items: center; justify-content: center; }
.cls.absolute-close:hover { border-color: var(--pink); color: var(--pink); transform: rotate(90deg); background: rgba(244,63,94,0.1); }

/* Mobile Float Rotate Button (Hidden on Desktop) */
#mobileRotateFab { display: none; position: absolute; top: 16px; right: 16px; z-index: 100; width: 36px; height: 36px; border-radius: 10px; background: rgba(56, 189, 248, 0.15); border: 1px solid var(--accent); color: var(--accent); font-size: 18px; font-weight: bold; cursor: pointer; transition: transform var(--t); }
#mobileRotateFab:active { transform: scale(0.9); }

/* 🔥 FULLSCREEN LANDSCAPE ROTATION LOGIC 🔥 */
.mo.rotated-mode .md.view-md {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  width: 100dvh !important; height: 100dvw !important;
  max-width: 100dvh !important; max-height: 100dvw !important;
  border-radius: 0; border: none;
}
.mo.rotated-mode .tw { height: 100dvw; padding-top: 16px; }

/* Standard Modal Headers (For Edit/Time menus) */
.md-h { padding: 22px 24px 0; display: flex; justify-content: space-between; align-items: flex-start; }
.md-h h2 { font-size: 26px; font-weight: 800; background: linear-gradient(135deg, #fff, var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.md-h .cls { background: none; border: 1px solid var(--border); border-radius: 10px; width: 38px; height: 38px; font-size: 18px; cursor: pointer; color: var(--dim); transition: transform var(--t), color var(--t); display: flex; align-items: center; justify-content: center; }
.md-h .cls:hover { border-color: var(--pink); color: var(--pink); transform: rotate(90deg); }
.md-sb { color: var(--dim); font-size: 14px; padding: 6px 24px 0; font-weight: 500; }
.md-acts { display: flex; gap: 8px; padding: 16px 24px; flex-wrap: wrap; }
.md-acts button { padding: 10px 18px; border-radius: var(--rx); border: 1px solid var(--border); background: var(--card2); color: var(--text); cursor: pointer; font-size: 13px; transition: box-shadow var(--t), border-color var(--t), color var(--t); font-family: var(--f); font-weight: 700; }
.md-acts button:hover { border-color: var(--accent); color: var(--accent2); box-shadow: 0 0 16px var(--ag); }

/* Matrix Table Wrapper */
.tw { padding: 24px 20px; width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-top: 40px; /* Space for absolute close btn */ }

/* 🌟 Compact & Scrollable Matrix 🌟 */
.t-grid { 
  width: 100%; 
  min-width: 760px;
  display: grid; 
  grid-template-columns: 100px repeat(6, minmax(95px, 1fr)); 
  gap: 8px; 
  align-items: stretch; 
}
.t-header { font-family: var(--m); font-size: clamp(10px, 1.1vw, 12px); font-weight: 700; color: var(--dim); background: var(--bg2); padding: 10px 4px; border-radius: var(--rx); border: 1px solid var(--border); text-align: center; display: flex; flex-direction: column; justify-content: center; letter-spacing: 0.3px; transition: transform var(--t); }

/* 🔥 SOLID OPAQUE STICKY COLUMNS 🔥 */
.t-header.th-day { 
  text-align: left; padding-left: 14px; background: var(--card); border-color: var(--border2); color: var(--text); font-weight: 800; font-family: var(--f); 
  position: sticky; left: 0; z-index: 20; 
  border-radius: var(--rx) 0 0 var(--rx);
  border-right: 1px solid var(--border);
}
.day-card { 
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--rx) 0 0 var(--rx); border-right: 1px solid var(--border);
  padding: 10px 12px; height: 100%; display: flex; flex-direction: column; justify-content: center; min-height: 75px; 
  position: sticky; left: 0; z-index: 10; 
}

/* Invisible solid wall prevents classes from showing between vertical grid gaps */
.t-header.th-day::before, .day-card::before {
  content: ''; position: absolute; 
  top: -4px; bottom: -4px; left: -20px; right: -1px; 
  background: var(--card);
  z-index: -1; 
  border-right: 1px solid var(--border);
}

.t-header.active-time-col { background: #16283d !important; border: 1.5px solid var(--accent); color: #fff; box-shadow: 0 0 24px var(--ag); position: relative; transform: translateY(-2px); z-index: 5;}
.t-header.active-time-col::after { content: 'NOW'; position: absolute; top: -8px; right: 8px; background: var(--accent); color: #000; font-size: 8px; font-weight: 800; padding: 2px 6px; border-radius: 4px; letter-spacing: 0.5px; box-shadow: 0 2px 8px rgba(0,0,0,0.5); }
.day-card.tod { background: #16283d !important; border-color: var(--accent); z-index: 15; }
.day-card .d-name { font-size: clamp(13px, 1.3vw, 15px); font-weight: 800; color: var(--text); letter-spacing: 0.3px; }
.day-card.tod .d-name { color: var(--accent2); }
.day-card .d-tag { font-size: 9px; font-weight: 800; color: #000; margin-top: 4px; display: inline-block; background: var(--accent2); padding: 2px 6px; border-radius: 6px; width: max-content; }

.t-card { border-radius: var(--rx); padding: 8px 10px; height: 100%; display: flex; flex-direction: column; gap: 4px; position: relative; overflow: hidden; transition: transform var(--t), filter var(--t), box-shadow var(--t); cursor: pointer; min-height: 75px; border: 1.5px solid transparent; text-align: center; align-items: center; justify-content: center; }
.t-card:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0, 0, 0, 0.6); filter: brightness(1.15); z-index: 5; }
.t-card.live { box-shadow: 0 0 28px var(--ag); border-color: #fff !important; animation: aGlow 3s ease-in-out infinite; z-index: 5;}
.t-card .t-subj { font-size: clamp(12px, 1.2vw, 15px); font-weight: 800; letter-spacing: -0.3px; line-height: 1.2; word-wrap: normal; white-space: normal; transition: color var(--t); }
.t-card .t-inst { font-size: clamp(10px, 1vw, 11px); font-weight: 600; opacity: 0.9; }
.t-card .t-meta { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 4px; margin-top: auto; padding-top: 4px; font-size: clamp(9px, 0.9vw, 11px); font-weight: 700; }
.t-card .t-badge { font-size: 8px; font-weight: 800; text-transform: uppercase; padding: 2px 6px; border-radius: 4px; background: rgba(0, 0, 0, 0.35); letter-spacing: 0.5px; white-space: nowrap; }

.t-empty { background: rgba(255, 255, 255, 0.015); border: 1px dashed rgba(255, 255, 255, 0.06); border-radius: var(--rx); height: 100%; min-height: 75px; display: flex; align-items: center; justify-content: center; color: var(--dim); font-size: 12px; opacity: 0.3; font-weight: 500; }
.t-empty.live-empty { background: rgba(16, 185, 129, 0.08); border: 1.5px dashed var(--lime); color: var(--lime); opacity: 0.9; font-weight: 800; font-size: 10px; letter-spacing: 0.5px; box-shadow: inset 0 0 16px rgba(16, 185, 129, 0.1); }

/* ==========================================================================
   5. EDIT SCHEDULE & CRUD FORM CONTROLS
   ========================================================================== */
.rc { padding: 0 24px; margin: 10px 0 14px; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: thin; scrollbar-color: var(--border) transparent; }
.rc::-webkit-scrollbar { height: 4px; } .rc::-webkit-scrollbar-track { background: transparent; } .rc::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.rci { display: flex; gap: 10px; min-width: max-content; padding-bottom: 4px; }
.dc { min-width: 150px; max-width: 170px; flex-shrink: 0; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--rs); overflow: hidden; transition: transform var(--t), border-color var(--t); animation: dcI 0.4s ease both; }
.dc:hover { border-color: var(--border2); transform: translateY(-2px); }
.dc.tod { border-color: var(--accent); box-shadow: 0 0 20px var(--ag); }
@keyframes dcI { from { opacity: 0; transform: translateY(12px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.dc-h { padding: 10px 14px 8px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.dc.tod .dc-h { background: rgba(56, 189, 248, 0.08); border-bottom-color: rgba(56, 189, 248, 0.2); }
.dc-h .dn { font-size: 13px; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; color: var(--dim); }
.dc.tod .dc-h .dn { color: var(--accent2); }
.dc-h .cnt { font-size: 11px; font-weight: 700; color: var(--dim); background: var(--border); padding: 1px 8px; border-radius: 10px; }
.dc.tod .dc-h .cnt { background: rgba(56, 189, 248, 0.15); color: var(--accent2); }
.dc-b { padding: 6px; }
.dc-e { padding: 8px 10px; border-radius: var(--rx); margin-bottom: 4px; cursor: default; transition: background var(--t), border-color var(--t); position: relative; border: 1px solid transparent; }
.dc-e:hover { background: var(--card); border-color: var(--border); }
.dc-e.ac { background: rgba(56, 189, 248, 0.1); border-color: rgba(56, 189, 248, 0.2); }
.dc-e .et { font-family: var(--m); font-size: 10px; color: var(--dim); margin-bottom: 2px; font-weight: 600; }
.dc-e .en { font-size: 14px; font-weight: 700; line-height: 1.3; margin-bottom: 1px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dc-e .ei { font-size: 11px; color: var(--accent2); font-weight: 600; margin-bottom: 2px; }
.dc-e .er { font-size: 11px; color: var(--dim); font-weight: 500; }
.dc-e .ed { position: absolute; top: 6px; right: 6px; width: 22px; height: 22px; border-radius: 6px; border: none; background: transparent; color: var(--dim); cursor: pointer; font-size: 15px; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity var(--t), background var(--t), color var(--t); }
.dc-e:hover .ed { opacity: 0.6; }
.dc-e .ed:hover { opacity: 1; background: rgba(244, 63, 94, 0.15); color: var(--pink); }
.dc-empty { padding: 20px 12px; text-align: center; font-size: 12px; color: var(--dim); opacity: 0.5; font-weight: 500; }

.mf { padding: 18px 26px 24px; border-top: 1px solid var(--border); }
.mf .fr { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.mf .fg { margin-bottom: 14px; }
.mf .fg label { display: block; font-size: 12px; font-weight: 800; margin-bottom: 6px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.5px; }
.mf .fg input, .mf .fg select { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--rx); background: var(--bg2); color: var(--text); font-size: 15px; transition: border-color var(--t), box-shadow var(--t); font-family: var(--f); font-weight: 500; }
.mf .fg input:focus, .mf .fg select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--ag); }
.mf .ma { display: flex; gap: 10px; margin-top: 18px; justify-content: flex-end; flex-wrap: wrap; }
.mf .ma button { padding: 12px 26px; border-radius: var(--rx); border: none; font-weight: 700; font-size: 15px; cursor: pointer; transition: transform var(--t), box-shadow var(--t), background var(--t); font-family: var(--f); }
.mf .ma .bp { background: linear-gradient(135deg, var(--accent), var(--pink)); color: #fff; }
.mf .ma .bp:hover { box-shadow: 0 4px 20px var(--ag); transform: translateY(-1px); }
.mf .ma .bd { background: rgba(244, 63, 94, 0.12); color: var(--pink); border: 1px solid rgba(244, 63, 94, 0.2); }
.mf .ma .bd:hover { background: rgba(244, 63, 94, 0.2); }

.toast { position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(100px); background: var(--card); color: var(--text); padding: 14px 24px; border-radius: var(--rs); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7); font-size: 15px; font-weight: 600; transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s; opacity: 0; z-index: 1100; border: 1px solid var(--border); display: flex; align-items: center; gap: 14px; white-space: nowrap; }
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast .ub { background: linear-gradient(135deg, var(--accent), var(--pink)); color: #fff; border: none; padding: 6px 18px; border-radius: 8px; font-size: 13px; font-weight: 800; cursor: pointer; transition: transform var(--t), box-shadow var(--t); font-family: var(--f); letter-spacing: 0.5px; }
.toast .ub:hover { transform: scale(1.05); box-shadow: 0 2px 12px var(--ag); }

/* ==========================================================================
   6. RESPONSIVE BREAKPOINTS (MOBILE TWEAKS)
   ========================================================================== */
@media (max-width: 640px) {
  body { padding: 16px 12px; }
  
  /* Show Mobile Rotation Button */
  #mobileRotateFab { display: flex; align-items: center; justify-content: center; }

  /* Maintain border on mobile */
  .ww { max-width: 100%; border-radius: 28px; padding: 3px; margin-bottom: 0; }
  .ww-border, .ww-glow { display: block; }
  .w { border-radius: 25px; }
  .wi { padding: 24px 16px 16px; }
  
  .hd .tm { font-size: 32px; }
  .cc .tt { font-size: 26px; }
  .nc .rw .tt { font-size: 18px; }
  
  .ch { padding: 14px 10px; gap: 6px; grid-template-columns: 80px 1fr 75px; }
  .chn { font-size: 14px; }
  .cht { font-size: 11px; }
  .chg { grid-template-columns: 1fr; }
  
  .md-h { padding: 18px 16px 0; }
  .md-acts { padding: 10px 16px; }
  .rc { padding: 0 16px; }
  .mf { padding: 14px 16px 18px; }
  .mf .fr { grid-template-columns: 1fr; }
  
  .tw { padding: 0 10px 18px; margin-top: 60px; /* Space for fab */ }
  .t-grid { grid-template-columns: 90px repeat(6, minmax(95px, 1fr)); gap: 6px; min-width: 670px; }
  .t-card { padding: 8px 6px; min-height: 70px; border-radius: 8px; }
  .t-card .t-subj { font-size: 12px; }
  .t-card .t-meta { font-size: 9px; flex-direction: column; align-items: center; gap: 2px; }
  .t-card .t-badge { margin-top: 2px; }
  .day-card { padding: 8px; min-height: 70px; border-radius: 8px 0 0 8px; }
  .t-header.th-day { border-radius: 8px 0 0 8px; }
  
  .day-card.tod { background: #16283d !important; box-shadow: inset 4px 0 0 var(--accent); }
  .t-header.active-time-col { background: #16283d !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}