:root {
  --bg: #0a0c10;
  --surface: #111318;
  --surface2: #181c24;
  --border: #1e2430;
  --accent: #e8b84b;
  --accent2: #4b9fe8;
  --accent3: #e84b6e;
  --accent4: #4be88a;
  --text: #e8e4dc;
  --muted: #6b7280;
  --PORT: #4b9fe8;
  --RLM: #4be88a;
  --DC: #e84b6e;
  --DH: #c084fc;
  --LINDB: #e8b84b;
  --REV: #f97316;
  --ING: #fb923c;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}

.cfsd-banner {
  background: #ff4d4f;
  color: #fff;
  display: flex;
  align-items: center;
  padding: 8px 12px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  position: sticky;
  top: 0;
  z-index: 120;
  gap: 8px;
}

.cfsd-banner span { flex: 1; text-align: center; }

.cfsd-close {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  padding: 6px 8px;
  line-height: 1;
}

.cfsd-close:hover { opacity: 0.9; }

header {
  padding: 48px 40px 32px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

header::after {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(232,184,75,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(232,184,75,0.3);
  padding: 4px 12px;
  border-radius: 2px;
  margin-bottom: 12px;
  display: inline-block;
}

h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

h1 span { color: var(--accent); }

.subtitle {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.05em;
}

.stats-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.stat { text-align: center; }

.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-family: 'IBM Plex Mono', monospace;
  margin-top: 4px;
}

.stat-sep { width: 1px; background: var(--border); align-self: stretch; }

.site-footer {
  margin-top: 16px;
  padding: 16px 40px 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.footer-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  font-weight: 600;
}

.footer-github svg {
  width: 17px;
  height: 17px;
}

.footer-github:hover {
  border-bottom-color: var(--accent);
}

.controls {
  padding: 20px 40px;
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 110;
  background: rgba(10,12,16,0.95);
  backdrop-filter: blur(12px);
}

.controls-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-right: 8px;
}

.month-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  padding: 8px 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.2s;
  border-radius: 2px;
}

.month-btn.active,
.month-btn:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.view-btn {
  margin-left: auto;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 7px 16px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.2s;
  border-radius: 2px;
}

.view-btn.active,
.view-btn:hover {
  background: var(--surface2);
  color: var(--text);
  border-color: var(--muted);
}

.link-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 7px 16px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.2s;
  border-radius: 2px;
  text-decoration: none;
}

.link-btn:hover {
  background: var(--surface2);
  color: var(--text);
  border-color: var(--muted);
}

.header-link {
  display: inline-block;
  margin-top: 14px;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  align-items: center;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.2s;
  border-radius: 2px;
  white-space: nowrap;
}

.action-btn:hover {
  background: var(--surface2);
  color: var(--text);
  border-color: var(--muted);
}

.action-btn--pdf {
  border-color: rgba(232,184,75,0.3);
  color: var(--accent);
}

.action-btn--pdf:hover {
  background: rgba(232,184,75,0.1);
  border-color: var(--accent);
}

.header-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.legend {
  padding: 12px 40px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.avail-panel {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 16px 40px;
}

.avail-panel-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
}

.avail-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.avail-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.avail-days {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.day-toggle {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 6px 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s;
  text-transform: uppercase;
}

.day-toggle.active {
  background: var(--surface2);
  color: var(--text);
  border-color: var(--accent);
}

.day-toggle--sat {
  border-color: rgba(249,115,22,0.4);
  color: var(--REV);
  cursor: default;
  opacity: 0.8;
}

.day-toggle--sat.active {
  background: rgba(249,115,22,0.08);
  border-color: var(--REV);
  color: var(--REV);
}

.avail-hours-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hours-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 160px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.hours-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.hours-value {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  min-width: 36px;
  line-height: 1;
}

.avail-section--result {
  margin-left: auto;
  align-items: flex-end;
}

.avail-result-grid {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.avail-stat {
  text-align: right;
}

.avail-stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.avail-stat-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 3px;
}

.avail-warn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--DC);
  margin-top: 4px;
  letter-spacing: 0.05em;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

main { padding: 32px 40px; }

.week-container { margin-bottom: 48px; }

.week-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.week-title {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  font-weight: 700;
}

.week-dates {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.week-progress {
  margin-left: auto;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.days-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.day-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.2s;
}

.day-col:hover { border-color: rgba(232,184,75,0.3); }

.day-header {
  padding: 8px 10px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.day-name {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

.day-date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--border);
}

.day-hours {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px;
  color: var(--muted);
  padding: 4px 10px;
  border-bottom: 1px solid var(--border);
  opacity: 0.7;
}

.day-sessions {
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.session {
  border-radius: 3px;
  padding: 6px 8px;
  position: relative;
  cursor: pointer;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.session:hover {
  filter: brightness(1.15);
  transform: translateX(2px);
}

.session.studied {
  filter: grayscale(1) saturate(0.2) brightness(0.7);
  border-left-color: #7a7a7a !important;
}

.session.studied .session-subject,
.session.studied .session-topic,
.session.studied .session-time,
.session.studied .session-type-badge {
  color: #9aa0a6 !important;
  text-decoration: line-through;
}

.session.studied .session-type-badge {
  background: rgba(154,160,166,0.15) !important;
}

.session.teoria { opacity: 1; }
.session.exercicio { opacity: 0.9; }

.session.revisao {
  border-style: dashed;
  border-width: 1px;
  border-left-width: 3px;
  border-left-style: solid;
}

.session-time {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 2px;
}

.session-subject {
  font-size: 10px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.session-topic {
  font-size: 9px;
  color: rgba(255,255,255,0.6);
  margin-top: 1px;
  line-height: 1.3;
}

.session-type-badge {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 1px 5px;
  border-radius: 2px;
  margin-top: 3px;
  opacity: 0.8;
}

.PORT { background: rgba(75,159,232,0.15); border-left-color: var(--PORT); }
.PORT .session-subject { color: var(--PORT); }
.PORT .session-type-badge { background: rgba(75,159,232,0.2); color: var(--PORT); }

.RLM { background: rgba(75,232,138,0.12); border-left-color: var(--RLM); }
.RLM .session-subject { color: var(--RLM); }
.RLM .session-type-badge { background: rgba(75,232,138,0.15); color: var(--RLM); }

.DC { background: rgba(232,75,110,0.12); border-left-color: var(--DC); }
.DC .session-subject { color: var(--DC); }
.DC .session-type-badge { background: rgba(232,75,110,0.15); color: var(--DC); }

.DH { background: rgba(192,132,252,0.12); border-left-color: var(--DH); }
.DH .session-subject { color: var(--DH); }
.DH .session-type-badge { background: rgba(192,132,252,0.15); color: var(--DH); }

.LINDB { background: rgba(232,184,75,0.12); border-left-color: var(--LINDB); }
.LINDB .session-subject { color: var(--LINDB); }
.LINDB .session-type-badge { background: rgba(232,184,75,0.15); color: var(--LINDB); }

.REV { background: rgba(249,115,22,0.1); border-left-color: var(--REV); }
.REV .session-subject { color: var(--REV); }
.REV .session-type-badge { background: rgba(249,115,22,0.15); color: var(--REV); }

.ING { background: rgba(251,146,60,0.12); border-left-color: var(--ING); }
.ING .session-subject { color: var(--ING); }
.ING .session-type-badge { background: rgba(251,146,60,0.15); color: var(--ING); }

.tooltip {
  position: fixed;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 14px;
  font-size: 11px;
  font-family: 'IBM Plex Sans', sans-serif;
  max-width: 220px;
  pointer-events: none;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.15s;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.tooltip.visible { opacity: 1; }
.tooltip-title { font-weight: 600; margin-bottom: 4px; color: var(--accent); }
.tooltip-row { color: var(--muted); margin-top: 2px; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px;
}

.summary-card-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.summary-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

.summary-item:last-child { border-bottom: none; }
.summary-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }

.hidden { display: none; }

.pmmg-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  padding: 12px 24px;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  z-index: 9000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  white-space: nowrap;
}

.pmmg-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.pmmg-toast--error {
  border-color: var(--DC);
  color: var(--DC);
}

@media (max-width: 1024px) {
  .days-grid { grid-template-columns: repeat(3, 1fr); }
  main { padding: 20px; }
  .controls, .legend { padding: 12px 20px; }
  .avail-panel { padding: 12px 20px; }
  .avail-section--result { margin-left: 0; align-items: flex-start; }
  header { padding: 32px 20px 20px; }
  .site-footer { padding: 14px 20px 20px; }
  .controls { top: 0; }
}

@media (max-width: 640px) {
  .days-grid { grid-template-columns: repeat(2, 1fr); }
}