/* ════════════════════════════════════════════════════════════════════════
   CARLOS · OS  —  "ATLAS"  HUD theme
   Light steel-blue tactical interface. Hairline grid, registration ticks,
   tracked monospace labels, precise data readouts.
   ════════════════════════════════════════════════════════════════════════ */

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

:root {
  /* ── field & surfaces ── */
  --bg:      #fcfdfd;
  --bg2:     #F7FAFB;
  --bg3:     #DCE3E8;
  --panel-edge: #EEF3F5;

  /* ── lines ── */
  --border:  #C8D2D9;
  --border2: #A9B8C1;
  --tick:    #7C93A0;

  /* ── ink ── */
  --text:    #15242C;
  --text2:   #56697A;
  --text3:   #92A2AD;

  /* ── steel-cyan accent ── */
  --accent:     #1B7B9C;
  --accent2:    #2E98BC;
  --accent-dim: rgba(27,123,156,0.10);

  /* ── semantic (kept low-saturation, names preserved for JS/markup) ── */
  --purple:  #1B7B9C;  --purple-dim: rgba(27,123,156,0.11);
  --teal:    #2C8A77;  --teal-dim:   rgba(44,138,119,0.11);
  --coral:   #BC553B;  --coral-dim:  rgba(188,85,59,0.11);
  --amber:   #A2762B;  --amber-dim:  rgba(162,118,43,0.11);
  --pink:    #9A5670;  --pink-dim:   rgba(154,86,112,0.11);
  --blue:    #2E73A8;  --blue-dim:   rgba(46,115,168,0.11);
  --green:   #4F7A37;  --green-dim:  rgba(79,122,55,0.11);
  --gray:    #5C6B74;  --gray-dim:   rgba(92,107,116,0.11);
  --link:    #1B7B9C;

  --font:    'Fira Code', ui-monospace, monospace;
  --mono:    'Fira Code', ui-monospace, monospace;
}

/* ── base field with hairline grid ── */
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}
body::before {
  content: none;
}

.main {
  max-width: 1760px;
  margin: 0 auto;
  padding: 0 0 60px;
  position: relative;
  z-index: 1;
}

/* ════════════════════════════════════ HUD MASTHEAD ═══════════════════════ */
.hud-bar {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 24px;
  margin: 0 0 26px;
  padding: 16px 0 14px;
  border-bottom: none;
  background: transparent;
  position: relative;
}
.hud-bar::after { content: none; }

.hud-left  { display: flex; flex-direction: column; gap: 6px; justify-content: center; }
.hud-right { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; justify-content: center; }

.hud-brand { display: flex; align-items: center; gap: 11px; }
.hud-mark {
  width: 22px; height: 22px;
  display: grid; place-items: center;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-size: 12px; line-height: 1;
  position: relative;
}
.hud-mark::before,
.hud-mark::after {
  content: ""; position: absolute; width: 4px; height: 4px;
  border-color: var(--accent);
}
.hud-word {
  font: 600 13px/1 var(--mono);
  letter-spacing: .22em;
  color: var(--text);
  text-transform: uppercase;
}
.hud-word .hud-dot { color: var(--accent); }
.hud-ver {
  font: 500 9px/1 var(--mono);
  letter-spacing: .18em;
  color: var(--text3);
  text-transform: uppercase;
  padding: 3px 7px;
  border: 1px solid var(--border);
}

.greeting {
  font: 600 24px/1.1 var(--font);
  letter-spacing: -0.02em;
  color: var(--text);
}

/* nav as segmented tactical control */
.page-tabs {
  display: flex;
  border: 1px solid var(--border2);
  background: var(--bg3);
}
.page-tab {
  font: 600 10px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 8px 16px;
  text-decoration: none;
  color: var(--text3);
  border-right: 1px solid var(--border2);
  transition: background .15s, color .15s;
}
.page-tab:last-child { border-right: none; }
.page-tab:hover { color: var(--text); background: var(--panel-edge); }
.page-tab.active {
  background: var(--accent);
  color: #fff;
}

.hud-sys {
  display: flex;
  align-items: center;
  gap: 16px;
}
.dateline {
  font: 400 11px/1 var(--mono);
  letter-spacing: .04em;
  color: var(--text3);
}
.hud-clock {
  font: 500 12px/1 var(--mono);
  letter-spacing: .08em;
  color: var(--text2);
  font-variant-numeric: tabular-nums;
}
.hud-stat {
  display: inline-flex; align-items: center; gap: 6px;
  font: 500 10px/1 var(--mono);
  letter-spacing: .14em;
  color: var(--teal);
  text-transform: uppercase;
}
.hud-stat .blip {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 rgba(44,138,119,.5);
  animation: blip 2.4s ease-out infinite;
}
@keyframes blip {
  0%   { box-shadow: 0 0 0 0 rgba(44,138,119,.45); }
  70%  { box-shadow: 0 0 0 5px rgba(44,138,119,0); }
  100% { box-shadow: 0 0 0 0 rgba(44,138,119,0); }
}
.hud-signout { cursor: pointer; transition: color .15s; }
.hud-signout:hover { color: var(--coral); }

/* legacy simple top bar (reading / tasks pages) */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 0 26px;
  padding: 18px 0 16px;
  border-bottom: none;
  background: transparent;
}
.top-bar > div:last-child { display: flex; align-items: center; gap: 18px; }

/* ════════════════════════════════════ COLUMNS ════════════════════════════ */
.columns   { display: grid; grid-template-columns: 1fr 1.6fr; gap: 18px; align-items: start; }
@media (max-width: 1100px) { .columns { grid-template-columns: 1fr; } }

.columns-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; align-items: start; }
@media (max-width: 1000px) { .columns-2 { grid-template-columns: 1fr; } }

.columns-3 { display: grid; grid-template-columns: 1.05fr 1fr 1fr; gap: 18px; align-items: start; }
@media (max-width: 1300px) { .columns-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 800px)  { .columns-3 { grid-template-columns: 1fr; } }

.col-stack { display: flex; flex-direction: column; gap: 18px; }

/* ════════════════════════════════════ PANELS ═════════════════════════════ */
.card {
  background: transparent;
  border: 1px solid var(--border2);
  border-left: none;
  border-right: none;
  border-bottom: none;
  border-radius: 0;
  padding: 16px 0 18px;
  position: relative;
}
/* registration corner brackets removed */
.card::before,
.card::after { content: none; }

.card-title {
  font: 600 10px/1 var(--mono);
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 9px;
}
.card-title.with-meta { justify-content: space-between; }
.card-title > span:first-child { color: var(--text2); }
/* leading index marker */
.card-title::before {
  content: "";
  width: 4px; height: 11px;
  background: var(--accent);
  flex-shrink: 0;
  margin-right: 2px;
}
.card-title.with-meta .dateline,
.card-title.with-meta > span:last-child { letter-spacing: .1em; }

/* ════════════════════════════════════ HABITS ═════════════════════════════ */
.habit-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.habit-row:last-child { border-bottom: none; }
.habit-name {
  font: 400 13px/1.1 var(--font);
  color: var(--text2);
  flex: 1;
  letter-spacing: .01em;
}
.dot-row {
  display: flex;
  gap: 5px;
  padding: 4px 6px;
  background: var(--bg3);
  border: 1px solid var(--border);
}
.hdot {
  width: 12px; height: 12px;
  border-radius: 1px;
  flex-shrink: 0;
}
.hdot.on  { background: var(--accent); }
.hdot.off { background: var(--bg2); border: 1px solid var(--border2); }
.hdot.today {
  cursor: pointer;
  outline: 1.5px solid var(--accent);
  outline-offset: 1.5px;
}
.hdot.today.off { background: var(--panel-edge); }

.empty-state {
  font: 400 11px/1.5 var(--mono);
  color: var(--text3);
  padding: 12px 0;
  letter-spacing: .03em;
}

/* ════════════════════════════════════ ARTICLE LIST ═══════════════════════ */
.article-list { list-style: none; }
.article-list li {
  border-bottom: 1px solid var(--border);
  padding: 13px 0;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 12px;
}
.article-list li:last-child { border-bottom: none; }
.al-body { flex: 1; min-width: 0; }
.al-title { font: 500 14px/1.4 var(--font); color: var(--text); display: block; text-decoration: none; }
.al-title:hover { color: var(--accent); }
.al-meta { font: 400 10px/1 var(--mono); color: var(--text3); margin-top: 4px; letter-spacing: .06em; text-transform: uppercase; }
.al-excerpt { font-size: 12px; color: var(--text2); margin-top: 4px; line-height: 1.5; }
.al-delete { opacity: 0; background: none; border: none; cursor: pointer; color: var(--text3); font-size: 14px; line-height: 1; padding: 2px 4px; flex-shrink: 0; transition: opacity .15s, color .15s; }
.article-list li:hover .al-delete { opacity: 1; }
.al-delete:hover { color: var(--coral); }

/* ════════════════════════════════════ EVENTS / TODAY ═════════════════════ */
.event-row {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
}
.event-row:last-child { border-bottom: none; }
.event-time {
  font: 400 10.5px/1.5 var(--mono);
  color: var(--text3);
  white-space: nowrap;
  min-width: 116px;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.event-title { font: 400 13.5px/1.1 var(--font); color: var(--text); flex: 1; min-width: 0; }

/* TODAY */
#today-container .event-time { min-width: 42px; color: var(--text2); }

/* UPCOMING EVENTS — vertical timeline rail */


#events-container .event-row:first-child::before { top: 14px; }
#events-container .event-row:last-child::before  { bottom: calc(100% - 14px); }
#events-container .event-row::after { content: none; }

.today-tag {
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 3px 8px;
  border-radius: 0;
  border: 1px solid currentColor;
  flex-shrink: 0;
  align-self: center;
}
.today-tag-event { color: var(--accent); background: var(--accent-dim); }
.today-tag-task  { color: var(--blue);   background: var(--blue-dim); }

/* ════════════════════════════════════ NOTES ══════════════════════════════ */
.note-input-row { display: flex; gap: 8px; margin-bottom: 14px; }
.note-input-row input[type="text"] {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 0;
  padding: 9px 13px;
  color: var(--text);
  font: 400 13px var(--font);
  outline: none;
  transition: border-color .15s, background .15s;
}
.note-input-row input[type="text"]::placeholder { color: var(--text3); }
.note-input-row input[type="text"]:focus { border-color: var(--accent); background: var(--bg2); }

.note-row { display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.note-row:last-child { border-bottom: none; }
.note-body { flex: 1; min-width: 0; }
.note-text { font: 400 13px/1.5 var(--font); color: var(--text); }
.note-meta { font: 400 10px/1 var(--mono); color: var(--text3); margin-top: 4px; letter-spacing: .05em; }
.note-delete { opacity: 0; background: none; border: none; cursor: pointer; color: var(--text3); font-size: 14px; line-height: 1; padding: 2px 4px; flex-shrink: 0; transition: opacity .15s, color .15s; }
.note-row:hover .note-delete { opacity: 1; }
.note-delete:hover { color: var(--coral); }

/* ════════════════════════════════════ QUOTE ══════════════════════════════ */
.quote-text {
  font: 400 15px/1.6 var(--font);
  color: var(--text);
  font-style: italic;
  padding-left: 16px;
  border-left: 2px solid var(--accent);
  position: relative;
}
.quote-author {
  font: 500 10px/1 var(--mono);
  color: var(--text3);
  margin-top: 12px;
  padding-left: 16px;
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* ════════════════════════════════════ TASKS STATS ════════════════════════ */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.stat-card {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 0;
  padding: 13px 15px;
  position: relative;
}
.stat-card::after {
  content: ""; position: absolute; top: 0; left: 0;
  width: 18px; height: 2px; background: var(--tick);
}
.stat-card.total::after   { background: var(--text2); }
.stat-card.pending::after { background: var(--amber); }
.stat-card.done::after    { background: var(--teal); }
.stat-card.overdue::after { background: var(--coral); }
.stat-card .label { font: 500 9px/1 var(--mono); color: var(--text3); text-transform: uppercase; letter-spacing: .12em; margin-bottom: 8px; }
.stat-card .value { font: 500 26px/1 var(--mono); letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat-card.total .value   { color: var(--text); }
.stat-card.pending .value { color: var(--amber); }
.stat-card.done .value    { color: var(--teal); }
.stat-card.overdue .value { color: var(--coral); }

/* ════════════════════════════════════ TOOLBAR / FORMS ════════════════════ */
.toolbar { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.toolbar input[type="text"], .toolbar select {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 0;
  padding: 9px 13px;
  color: var(--text);
  font: 400 13px var(--font);
  outline: none;
  transition: border-color .15s;
}
.toolbar input[type="text"] { flex: 1; min-width: 140px; }
.toolbar input[type="text"]:focus, .toolbar select:focus { border-color: var(--accent); }
.toolbar select { cursor: pointer; }

.btn {
  font: 600 10px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: 0;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.btn-primary   { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent2); border-color: var(--accent2); }
.btn-secondary { background: transparent; color: var(--text2); border-color: var(--border2); }
.btn-secondary:hover { color: var(--text); border-color: var(--text2); }

.btn-icon {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 0;
  color: var(--text2);
  font-size: 0.85rem; line-height: 1;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.btn-icon:hover { background: var(--bg3); color: var(--text); }
.btn-icon-danger { color: var(--coral); }
.btn-icon-danger:hover { background: var(--coral-dim); border-color: var(--coral); }

.task-check { width: 15px; height: 15px; accent-color: var(--accent); cursor: pointer; }

/* ════════════════════════════════════ TABLE ══════════════════════════════ */
.table-wrap { background: var(--bg2); border: 1px solid var(--border2); border-radius: 0; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--bg3);
  padding: 11px 16px;
  text-align: left;
  font: 600 9px var(--mono);
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .12em;
  border-bottom: 1px solid var(--border2);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--bg3); }
td { padding: 8px 16px; font-size: 13px; vertical-align: middle; color: var(--text2); white-space: nowrap; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 0;
  font: 500 9px var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  border: 1px solid currentColor;
}
.badge-pending     { color: var(--amber); background: var(--amber-dim); }
.badge-done        { color: var(--teal);  background: var(--teal-dim); }
.badge-in_progress { color: var(--blue);  background: var(--blue-dim); }
.badge-default     { color: var(--gray);  background: var(--gray-dim); }
.badge-to_read     { color: var(--gray);  background: var(--gray-dim); }
.badge-reading     { color: var(--blue);  background: var(--blue-dim); }
.badge-finished    { color: var(--teal);  background: var(--teal-dim); }

.overdue-row td:first-child { border-left: 3px solid var(--coral); }
.actions { display: flex; gap: 6px; }
td.empty { text-align: center; color: var(--text3); padding: 40px; white-space: normal; font-family: var(--mono); font-size: 11px; letter-spacing: .04em; }

/* ════════════════════════════════════ MODAL / TOAST ══════════════════════ */
.overlay {
  position: fixed; inset: 0;
  background: rgba(21,36,44,.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  opacity: 0; pointer-events: none; transition: opacity .2s;
  backdrop-filter: blur(2px);
}
.overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 0;
  padding: 28px 30px;
  width: 100%;
  max-width: 420px;
  transform: translateY(16px);
  transition: transform .2s;
  box-shadow: 0 16px 50px rgba(21,36,44,.18);
  position: relative;
}
.modal::before, .modal::after {
  content: ""; position: absolute; width: 11px; height: 11px; pointer-events: none;
}
.modal::before { top: -1px; left: -1px; border-top: 1.5px solid var(--accent); border-left: 1.5px solid var(--accent); }
.modal::after  { bottom: -1px; right: -1px; border-bottom: 1.5px solid var(--accent); border-right: 1.5px solid var(--accent); }
.overlay.open .modal { transform: translateY(0); }
.modal h2 {
  font: 600 11px var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.field { margin-bottom: 16px; }
.field label { display: block; font: 500 9px var(--mono); color: var(--text3); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 7px; }
.field input, .field select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 0;
  padding: 9px 11px;
  color: var(--text);
  font: 400 14px var(--font);
  outline: none;
  transition: border-color .15s;
}
.field input:focus, .field select:focus { border-color: var(--accent); }

.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 24px; }

.toast {
  position: fixed; bottom: 26px; right: 26px;
  background: var(--teal); color: #fff;
  padding: 12px 18px; border-radius: 0;
  font: 600 11px var(--mono);
  letter-spacing: .08em; text-transform: uppercase;
  opacity: 0; transition: opacity .3s;
  pointer-events: none; z-index: 200;
  border-left: 3px solid rgba(255,255,255,.6);
}
.toast.error { background: var(--coral); }
.toast.show { opacity: 1; }

ul, ol { list-style: none; padding-left: 0; }

/* ── scrollbar ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 0; }

@media (prefers-reduced-motion: reduce) {
  .hud-stat .blip { animation: none; }
}