/* ═══════════════════════════════════════════════
   style.css — Chlazení Klubovny
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Share+Tech+Mono&family=Barlow:wght@400;600;700&display=swap');

/* ── Variables ─────────────────────────────────── */
:root {
  --bg:       #0d0f0e;
  --surface:  #141714;
  --card:     #1a1e1a;
  --border:   #2a302a;
  --accent:   #f5a623;
  --beer:     #d4820a;
  --cold:     #4fc3f7;
  --green:    #4caf50;
  --red:      #f44336;
  --text:     #e8ead6;
  --muted:    #6b7468;

  --font-display: 'Bebas Neue', sans-serif;
  --font-mono:    'Share Tech Mono', monospace;
  --font-body:    'Barlow', sans-serif;

  --radius:   12px;
  --gap:      16px;
}

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

/* ── Base ───────────────────────────────────────── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Grain overlay */
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='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 999;
  opacity: 0.35;
}

/* ── Header ─────────────────────────────────────── */
header {
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
  gap: 12px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.9rem;
  letter-spacing: 3px;
  color: var(--accent);
  display: flex; align-items: center; gap: 10px;
}
.logo span { color: var(--text); }

.mqtt-status {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
}

.mqtt-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--red);
  flex-shrink: 0;
  transition: background 0.3s;
  box-shadow: 0 0 6px currentColor;
}
.mqtt-dot.connected    { background: var(--green); }
.mqtt-dot.connecting   { background: var(--accent); animation: pulse 1s infinite; }

/* ── Main layout ────────────────────────────────── */
main { max-width: 1100px; margin: 0 auto; padding: 24px var(--gap); }

/* ── Power section ──────────────────────────────── */
.power-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 36px 0 28px;
  gap: 18px;
}

.power-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 4px;
  color: var(--muted);
  text-transform: uppercase;
}

.power-btn {
  width: 200px; height: 200px;
  border-radius: 50%;
  border: 4px solid var(--border);
  background: radial-gradient(circle at 35% 35%, #1e2420, #0d0f0e);
  cursor: pointer;
  position: relative;
  transition: all 0.15s ease;
  box-shadow:
    inset 0 4px 12px rgba(0,0,0,0.6),
    0 8px 32px rgba(0,0,0,0.8);
  outline: none;
  display: flex; align-items: center; justify-content: center;
}
.power-btn::before {
  content: '';
  position: absolute; inset: 8px;
  border-radius: 50%;
  border: 2px solid var(--border);
  transition: border-color 0.3s;
}
.power-btn .icon {
  font-size: 4rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.5));
  transition: filter 0.3s;
  position: relative; z-index: 1;
}
.power-btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 0 8px rgba(245,166,35,0.07),
    inset 0 4px 12px rgba(0,0,0,0.6),
    0 12px 40px rgba(0,0,0,0.9);
}
.power-btn:active { transform: scale(0.97); }

.power-btn.ON {
  border-color: var(--cold);
  box-shadow:
    0 0 0 12px rgba(79,195,247,0.08),
    0 0 40px rgba(79,195,247,0.2),
    inset 0 4px 12px rgba(0,0,0,0.4),
    0 8px 40px rgba(79,195,247,0.15);
}
.power-btn.ON::before { border-color: rgba(79,195,247,0.3); }
.power-btn.ON .icon   { filter: drop-shadow(0 0 12px var(--cold)); }
.power-btn.OFF        { border-color: var(--muted); }

.state-text {
  font-family: var(--font-display);
  font-size: 2.8rem;
  letter-spacing: 8px;
  transition: color 0.3s;
}
.state-text.ON  { color: var(--cold); text-shadow: 0 0 20px rgba(79,195,247,0.4); }
.state-text.OFF { color: var(--muted); }

/* ── Grid ───────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--gap);
  margin-bottom: var(--gap);
}

/* ── Card ───────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
}
.card::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.card-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 14px;
}

/* ── Temperature card ───────────────────────────── */
.temp-display {
  font-family: var(--font-display);
  font-size: 4.5rem;
  line-height: 1;
  color: var(--cold);
  display: flex; align-items: flex-start;
}
.temp-unit { font-size: 2rem; margin-top: 8px; opacity: 0.6; }
.temp-sub  { font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); margin-top: 6px; }

.target-row {
  display: flex; align-items: center; gap: 10px;
  margin-top: 14px; padding-top: 14px;
  border-top: 1px solid var(--border);
}
.target-row label { font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); flex: 1; }

.temp-ctrl { display: flex; align-items: center; gap: 6px; }
.temp-ctrl button {
  width: 28px; height: 28px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.temp-ctrl button:hover { background: var(--border); }

.target-val {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent);
  min-width: 50px;
  text-align: center;
}

/* ── Info list ──────────────────────────────────── */
.info-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.info-item { display: flex; justify-content: space-between; align-items: center; }
.info-key  { color: var(--muted); font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 1px; }
.info-val  { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text); }
.info-val.ok   { color: var(--green); }
.info-val.err  { color: var(--red); }
.info-val.warn { color: var(--accent); }

/* WiFi bars */
.wifi-bars { display: flex; gap: 3px; align-items: flex-end; }
.bar { width: 5px; background: var(--border); border-radius: 2px; transition: background 0.3s; }
.bar:nth-child(1) { height: 6px; }
.bar:nth-child(2) { height: 10px; }
.bar:nth-child(3) { height: 14px; }
.bar:nth-child(4) { height: 18px; }
.bar.active { background: var(--green); }

/* ── Schedule card ──────────────────────────────── */
.schedule-card, .ota-card, .log-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: var(--gap);
}

.section-header {
  display: flex; align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 12px;
  flex-wrap: wrap;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 2px;
  color: var(--accent);
}

.days-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.day-tab {
  padding: 6px 13px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1px;
  transition: all 0.15s;
  position: relative;
}
.day-tab:hover  { border-color: var(--accent); color: var(--accent); }
.day-tab.active { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 700; }
.day-tab.has-events::after {
  content: '';
  position: absolute; top: 3px; right: 3px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--cold);
}

.events-list { display: flex; flex-direction: column; gap: 8px; min-height: 50px; margin-bottom: 14px; }
.no-events   { color: var(--muted); font-family: var(--font-mono); font-size: 0.78rem; padding: 10px 0; }

.event-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  animation: slideIn 0.2s ease;
}
.event-row.on-event  { border-left: 3px solid var(--cold); }
.event-row.off-event { border-left: 3px solid var(--muted); }

.event-time { font-family: var(--font-mono); font-size: 1rem; color: var(--text); min-width: 50px; }
.event-badge {
  padding: 3px 10px; border-radius: 4px;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 2px;
}
.event-badge.on  { background: rgba(79,195,247,0.12); color: var(--cold);  border: 1px solid rgba(79,195,247,0.3); }
.event-badge.off { background: rgba(107,116,104,0.15); color: var(--muted); border: 1px solid var(--border); }
.event-del {
  margin-left: auto;
  background: none; border: none;
  color: var(--muted); cursor: pointer;
  font-size: 0.9rem; padding: 4px 6px;
  border-radius: 4px; transition: color 0.15s;
}
.event-del:hover { color: var(--red); }

/* Timeline */
.timeline {
  height: 22px; border-radius: 4px;
  background: var(--surface); border: 1px solid var(--border);
  position: relative; overflow: hidden;
  margin-bottom: 4px;
}
.timeline-label {
  font-family: var(--font-mono); font-size: 0.58rem; color: var(--muted);
  display: flex; justify-content: space-between;
  padding: 0 2px; margin-bottom: 14px;
}
.tl-segment {
  position: absolute; height: 100%;
  background: rgba(79,195,247,0.3);
  border-left: 2px solid var(--cold);
  border-right: 2px solid var(--cold);
}

/* Add event row */
.add-event { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.add-event input[type="time"] {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text);
  font-family: var(--font-mono); font-size: 0.88rem;
  padding: 8px 12px; outline: none;
  transition: border-color 0.15s;
}
.add-event input[type="time"]:focus { border-color: var(--accent); }

.toggle-group { display: flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.toggle-group button {
  padding: 8px 16px; border: none;
  background: var(--surface); color: var(--muted);
  cursor: pointer; font-family: var(--font-mono);
  font-size: 0.72rem; letter-spacing: 2px;
  transition: all 0.15s;
}
.toggle-group button.active-on  { background: rgba(79,195,247,0.15); color: var(--cold); }
.toggle-group button.active-off { background: rgba(107,116,104,0.15); color: var(--text); }

/* ── Buttons ────────────────────────────────────── */
.btn-primary {
  padding: 9px 22px;
  border-radius: 8px; border: none;
  background: var(--accent); color: #000;
  cursor: pointer; font-family: var(--font-display);
  font-size: 1.05rem; letter-spacing: 2px;
  transition: all 0.15s; white-space: nowrap;
}
.btn-primary:hover { background: var(--beer); transform: translateY(-1px); }

.btn-secondary {
  padding: 8px 18px;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: rgba(245,166,35,0.08);
  color: var(--accent); cursor: pointer;
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 2px; transition: all 0.15s; white-space: nowrap;
}
.btn-secondary:hover { background: rgba(245,166,35,0.18); }

.btn-danger {
  padding: 8px 18px;
  border-radius: 6px;
  border: 1px solid var(--red);
  background: rgba(244,67,54,0.08);
  color: var(--red); cursor: pointer;
  font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 1px; transition: all 0.15s; white-space: nowrap;
}
.btn-danger:hover { background: rgba(244,67,54,0.18); }

/* ── OTA card ───────────────────────────────────── */
.ota-upload-row {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 14px;
}
.ota-upload-row input[type="file"] {
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--muted); cursor: pointer;
}
.ota-upload-row input[type="file"]::file-selector-button {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text);
  padding: 6px 14px; cursor: pointer;
  font-family: var(--font-mono); font-size: 0.72rem;
  margin-right: 10px; transition: background 0.15s;
}
.ota-upload-row input[type="file"]::file-selector-button:hover { background: var(--border); }

.ota-progress { display: none; }
.ota-bar-wrap {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; height: 12px; overflow: hidden;
  margin-bottom: 8px;
}
.ota-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--cold), var(--accent));
  border-radius: 6px;
  transition: width 0.4s ease;
}
.ota-status-text { font-family: var(--font-mono); font-size: 0.72rem; }
.ota-status-text.ok   { color: var(--green); }
.ota-status-text.err  { color: var(--red); }
.ota-status-text.info { color: var(--muted); }

.ota-info {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--muted); line-height: 1.6;
  border-top: 1px solid var(--border);
  padding-top: 12px; margin-top: 4px;
}

/* ── Log ────────────────────────────────────────── */
.log-title {
  font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 3px; color: var(--muted);
  margin-bottom: 10px;
}
.log-inner {
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--muted); max-height: 120px;
  overflow-y: auto; display: flex;
  flex-direction: column-reverse; gap: 3px;
}
.log-line { display: flex; gap: 10px; }
.log-time { color: var(--border); min-width: 68px; flex-shrink: 0; }
.log-msg.info { color: var(--muted); }
.log-msg.ok   { color: var(--green); }
.log-msg.warn { color: var(--accent); }
.log-msg.err  { color: var(--red); }

/* ── Animations ─────────────────────────────────── */
@keyframes pulse {
  0%,100% { opacity: 1; }
  50%      { opacity: 0.3; }
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-5px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 600px) {
  .power-btn { width: 160px; height: 160px; }
  .power-btn .icon { font-size: 3rem; }
  .state-text { font-size: 2.2rem; }
  header { padding: 12px 16px; }
  .logo { font-size: 1.5rem; }
}

/* ── OTA lock ───────────────────────────────────── */
.ota-locked {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0 8px;
}
.ota-lock-hint {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 2px;
}
.ota-pin-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}
.ota-pin-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 6px;
  padding: 8px 14px;
  width: 140px;
  outline: none;
  transition: border-color 0.15s;
  text-align: center;
}
.ota-pin-input:focus { border-color: var(--accent); }
.ota-pin-input.error { border-color: var(--red); animation: shake 0.3s ease; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25%      { transform: translateX(-6px); }
  75%      { transform: translateX(6px); }
}