/* Erthiox Study Planner – Ghost UI V2 dark theme */

:root {
  --sp-bg: #111622;
  --sp-surface: #171d2e;
  --sp-surface-2: #1e2539;
  --sp-border: rgba(197, 168, 128, 0.16);
  --sp-border-strong: rgba(197, 168, 128, 0.32);
  --sp-gold: #c5a880;
  --sp-gold-dim: rgba(197, 168, 128, 0.12);
  --sp-text: #eef1f7;
  --sp-muted: #9aa3b8;
  --sp-danger: #ea6a6a;
  --sp-radius: 14px;
}

/* ---------- Hero ---------- */
.sp-hero { padding: 40px 24px 8px; }
.sp-hero-inner { max-width: 1200px; margin: 0 auto; }
.sp-hero-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--sp-text);
  margin: 0 0 8px;
}
.sp-hero-sub { color: var(--sp-muted); margin: 0; font-size: 1rem; max-width: 720px; }

/* ---------- Toolbar ---------- */
.sp-toolbar {
  max-width: 1200px;
  margin: 20px auto 0;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}
.sp-toolbar-left, .sp-toolbar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.sp-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--sp-border);
  background: var(--sp-surface);
  color: var(--sp-text);
  font: 500 13.5px/1 Roboto, "Google Sans", sans-serif;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.1s;
  white-space: nowrap;
}
.sp-btn:hover { border-color: var(--sp-border-strong); background: var(--sp-surface-2); }
.sp-btn:active { transform: translateY(1px); }
.sp-btn .material-symbols-outlined { font-size: 18px; }
.sp-btn-icon { padding: 9px 10px; }

.sp-btn-primary { background: #1a73e8; border-color: #1a73e8; color: #fff; }
.sp-btn-primary:hover { background: #1b7ef0; border-color: #1b7ef0; }
.sp-btn-gold { background: linear-gradient(135deg, #c5a880, #a8875e); border: none; color: #14100a; font-weight: 600; }
.sp-btn-gold:hover { filter: brightness(1.08); }
.sp-btn-danger { background: transparent; border-color: rgba(234, 106, 106, 0.5); color: var(--sp-danger); }
.sp-btn-danger:hover { background: rgba(234, 106, 106, 0.1); }

.sp-view-toggle { display: flex; border: 1px solid var(--sp-border); border-radius: 10px; overflow: hidden; }
.sp-view-btn {
  padding: 9px 16px;
  background: transparent;
  border: none;
  color: var(--sp-muted);
  font: 500 13.5px/1 Roboto, sans-serif;
  cursor: pointer;
}
.sp-view-btn.active { background: var(--sp-gold-dim); color: var(--sp-gold); }

.sp-range-label { color: var(--sp-text); font-weight: 600; font-size: 14px; min-width: 190px; }

.sp-sync-note {
  max-width: 1200px;
  margin: 12px auto 0;
  padding: 10px 24px;
  color: var(--sp-muted);
  font-size: 13px;
}

/* ---------- Grid ---------- */
.sp-grid-wrap {
  max-width: 1200px;
  margin: 12px auto 48px;
  padding: 0 24px;
}
.sp-grid {
  display: grid;
  grid-template-columns: 56px repeat(7, minmax(0, 1fr));
  border: 1px solid var(--sp-border);
  border-radius: var(--sp-radius);
  overflow: hidden;
  background: var(--sp-surface);
}
.sp-grid.day-mode { grid-template-columns: 56px 1fr; }

.sp-gutter-head, .sp-day-head {
  padding: 10px 6px;
  text-align: center;
  border-bottom: 1px solid var(--sp-border);
  background: var(--sp-surface-2);
}
.sp-day-head .sp-day-name { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--sp-muted); }
.sp-day-head .sp-day-num { display: block; font-size: 18px; font-weight: 700; color: var(--sp-text); margin-top: 2px; }
.sp-day-head.today .sp-day-num {
  background: var(--sp-gold);
  color: #14100a;
  width: 32px; height: 32px;
  line-height: 32px;
  border-radius: 50%;
  margin: 2px auto 0;
}

.sp-gutter { position: relative; }
.sp-gutter .sp-hour-label {
  position: absolute;
  right: 8px;
  transform: translateY(-50%);
  font-size: 10.5px;
  color: var(--sp-muted);
}

.sp-day-col {
  position: relative;
  border-left: 1px solid var(--sp-border);
  cursor: crosshair;
  background-image:
    repeating-linear-gradient(to bottom, transparent 0, transparent 55px, rgba(197, 168, 128, 0.10) 55px, rgba(197, 168, 128, 0.10) 56px);
}
.sp-day-col.today { background-color: rgba(197, 168, 128, 0.04); }

/* Study blocks */
.sp-block {
  position: absolute;
  border-radius: 8px;
  padding: 5px 7px;
  font-size: 12px;
  line-height: 1.3;
  color: #fff;
  overflow: hidden;
  cursor: pointer;
  border-left: 3px solid rgba(255, 255, 255, 0.55);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
  transition: filter 0.15s, transform 0.15s;
}
.sp-block:hover { filter: brightness(1.15); }
.sp-block .sp-block-title { font-weight: 600; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-block .sp-block-time { opacity: 0.85; font-size: 11px; }

/* Google events: muted, read-only */
.sp-gevent {
  position: absolute;
  border-radius: 8px;
  padding: 5px 7px;
  font-size: 12px;
  line-height: 1.3;
  color: #c3c9d6;
  overflow: hidden;
  cursor: default;
  background: rgba(90, 99, 118, 0.22);
  border: 1px dashed rgba(154, 163, 184, 0.5);
}
.sp-gevent .sp-block-title { font-weight: 500; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-gevent .sp-block-time { opacity: 0.7; font-size: 11px; }

/* Now line */
.sp-now-line { position: absolute; left: 0; right: 0; height: 2px; background: #ea4335; z-index: 5; pointer-events: none; }
.sp-now-line::before { content: ""; position: absolute; left: -4px; top: -4px; width: 10px; height: 10px; border-radius: 50%; background: #ea4335; }

/* ---------- Modals ---------- */
.sp-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 16, 0.72);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 16px;
  z-index: 1000;
  overflow-y: auto;
}
.sp-modal {
  background: var(--sp-surface);
  border: 1px solid var(--sp-border-strong);
  border-radius: 18px;
  padding: 28px;
  width: 100%;
  max-width: 520px;
  position: relative;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}
.sp-modal-wide { max-width: 760px; }
.sp-modal-close {
  position: absolute;
  top: 14px; right: 14px;
  background: transparent;
  border: none;
  color: var(--sp-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
}
.sp-modal-close:hover { color: var(--sp-text); background: var(--sp-surface-2); }
.sp-modal-title { margin: 0 0 4px; font-size: 1.35rem; font-weight: 700; color: var(--sp-text); letter-spacing: -0.3px; }
.sp-modal-sub { color: var(--sp-muted); font-size: 13.5px; margin: 0 0 18px; }
.sp-step-title { color: var(--sp-text); margin: 14px 0 4px; font-size: 1.05rem; }

.sp-field { margin-bottom: 16px; position: relative; }
.sp-field > label { display: block; font-size: 12.5px; font-weight: 600; color: var(--sp-muted); margin-bottom: 7px; text-transform: uppercase; letter-spacing: 0.6px; }
.sp-input {
  width: 100%;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--sp-border);
  background: var(--sp-bg);
  color: var(--sp-text);
  font: 400 14px/1.4 Roboto, sans-serif;
  box-sizing: border-box;
}
.sp-input:focus { outline: none; border-color: var(--sp-gold); box-shadow: 0 0 0 3px var(--sp-gold-dim); }
textarea.sp-input { resize: vertical; }
.sp-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.sp-check-row { display: flex; align-items: center; gap: 10px; }
.sp-check-row input { width: 18px; height: 18px; accent-color: var(--sp-gold); }
.sp-check-row label { text-transform: none; letter-spacing: 0; font-size: 14px; color: var(--sp-text); margin: 0; }

.sp-course-results {
  position: absolute;
  top: 100%; left: 0; right: 0;
  max-height: 260px;
  overflow-y: auto;
  background: var(--sp-surface-2);
  border: 1px solid var(--sp-border-strong);
  border-radius: 10px;
  margin-top: 6px;
  z-index: 10;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
}
.sp-course-opt {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  cursor: pointer;
  color: var(--sp-text);
  font-size: 13.5px;
}
.sp-course-opt:hover { background: var(--sp-gold-dim); }
.sp-course-opt .material-symbols-outlined { font-size: 18px; flex-shrink: 0; }
.sp-course-opt .sp-course-cat { margin-left: auto; font-size: 11px; color: var(--sp-muted); }

.sp-modal-actions { display: flex; align-items: center; gap: 10px; margin-top: 20px; }
.sp-spacer { flex: 1; }
.sp-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--sp-gold);
  font-size: 13.5px; font-weight: 600;
  text-decoration: none;
  background: none; border: none; cursor: pointer; padding: 0;
}
.sp-link:hover { text-decoration: underline; }
.sp-back-link { margin-bottom: 6px; font-size: 13px; }
.sp-hint { font-size: 12.5px; color: var(--sp-muted); line-height: 1.6; margin: 8px 0 0; }
.sp-hint a { color: var(--sp-gold); }
.sp-settings-actions { margin-top: 0; }

/* ---------- Template cards ---------- */
.sp-template-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.sp-template-card {
  background: var(--sp-bg);
  border: 1px solid var(--sp-border);
  border-radius: 14px;
  padding: 18px;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
  text-align: left;
  color: var(--sp-text);
  font-family: inherit;
}
.sp-template-card:hover { border-color: var(--sp-gold); transform: translateY(-2px); }
.sp-template-card .material-symbols-outlined { font-size: 30px; color: var(--sp-gold); margin-bottom: 10px; }
.sp-template-card h4 { margin: 0 0 6px; font-size: 15px; font-weight: 700; }
.sp-template-card p { margin: 0 0 10px; font-size: 12.5px; color: var(--sp-muted); line-height: 1.5; }
.sp-template-card .sp-template-meta { font-size: 11.5px; color: var(--sp-gold); font-weight: 600; }

.sp-intensity { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.sp-intensity-opt input { display: none; }
.sp-intensity-opt span {
  display: block;
  border: 1px solid var(--sp-border);
  border-radius: 12px;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  background: var(--sp-bg);
}
.sp-intensity-opt span b { display: block; color: var(--sp-text); font-size: 14px; }
.sp-intensity-opt span i { display: block; font-style: normal; color: var(--sp-muted); font-size: 12px; margin-top: 4px; }
.sp-intensity-opt input:checked + span { border-color: var(--sp-gold); background: var(--sp-gold-dim); }

.sp-days { display: flex; gap: 8px; flex-wrap: wrap; }
.sp-day-check input { display: none; }
.sp-day-check span {
  display: inline-block;
  width: 42px; height: 42px;
  line-height: 42px; text-align: center;
  border-radius: 50%;
  border: 1px solid var(--sp-border);
  color: var(--sp-muted);
  font-size: 12px; font-weight: 600;
  cursor: pointer;
  background: var(--sp-bg);
}
.sp-day-check input:checked + span { background: var(--sp-gold); border-color: var(--sp-gold); color: #14100a; }

.sp-preview-list { max-height: 320px; overflow-y: auto; border: 1px solid var(--sp-border); border-radius: 12px; }
.sp-preview-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--sp-border);
  font-size: 13.5px;
  color: var(--sp-text);
}
.sp-preview-row:last-child { border-bottom: none; }
.sp-preview-row .sp-preview-date { color: var(--sp-gold); font-weight: 600; min-width: 132px; }
.sp-preview-row .sp-preview-course { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .sp-grid { grid-template-columns: 48px repeat(7, minmax(110px, 1fr)); }
  .sp-grid-wrap { overflow-x: auto; }
  .sp-grid { min-width: 860px; }
  .sp-row { grid-template-columns: 1fr; }
  .sp-intensity { grid-template-columns: 1fr; }
  .sp-toolbar { flex-direction: column; align-items: stretch; }
  .sp-toolbar-left, .sp-toolbar-right { justify-content: flex-start; }
}

.d-none { display: none !important; }

/* ---------- Settings: imported files ---------- */
.sp-import-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--sp-border);
  border-radius: 10px;
  background: var(--sp-bg);
  margin-bottom: 8px;
}
.sp-import-row .material-symbols-outlined { color: var(--sp-gold); font-size: 20px; flex-shrink: 0; }
.sp-import-name { flex: 1; font-size: 13.5px; color: var(--sp-text); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sp-import-name i { display: block; font-style: normal; font-weight: 400; font-size: 11.5px; color: var(--sp-muted); margin-top: 2px; white-space: normal; }
.sp-btn-sm { padding: 7px 10px; font-size: 12.5px; }
.sp-btn-sm .material-symbols-outlined { font-size: 16px; }