/* ─────────────────────────────────────────
   DRONE DETECTION UA — style.css
   ───────────────────────────────────────── */

/* ── THEME TOKENS ── */
:root,
[data-theme="dark"] {
  --color-bg:           #0a0a0a;
  --color-surface:      #111111;
  --color-surface2:     #1a1a1a;
  --color-border:       #2a2a2a;
  --color-border-hover: #444;
  --color-text:         #f0ead6;
  --color-muted:        #888;
  --color-muted2:       #555;
  --color-safe:         #2d6a4f;
  --color-safe-light:   #52b788;
  --color-safe-bg:      rgba(82,183,136,0.12);
  --color-danger:       #e63946;
  --color-danger-dark:  #9b2226;
  --color-danger-muted: #cc4444;
  --color-danger-bg:    rgba(230,57,70,0.07);
  --color-warning:      #e9c46a;
  --color-progress-bg:  #1e1e1e;
  --color-progress-fill:#52b788;
  --color-footer-text:  #333;
  --shadow-card:        0 2px 12px rgba(0,0,0,0.45);
  --scanline: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.07) 2px,
    rgba(0,0,0,0.07) 4px
  );
}

[data-theme="light"] {
  --color-bg:           #f5f3ee;
  --color-surface:      #ffffff;
  --color-surface2:     #f0ede7;
  --color-border:       #ddd8cf;
  --color-border-hover: #bbb5ab;
  --color-text:         #1a1816;
  --color-muted:        #888480;
  --color-muted2:       #aaa89e;
  --color-safe:         #2d6a4f;
  --color-safe-light:   #1f7a54;
  --color-safe-bg:      rgba(31,122,84,0.08);
  --color-danger:       #c1121f;
  --color-danger-dark:  #a40000;
  --color-danger-muted: #c44;
  --color-danger-bg:    rgba(193,18,31,0.06);
  --color-warning:      #b5830a;
  --color-progress-bg:  #e4e0d8;
  --color-progress-fill:#1f7a54;
  --color-footer-text:  #bbb;
  --shadow-card:        0 2px 12px rgba(0,0,0,0.09);
  --scanline: none;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Oswald', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  transition: background 0.35s, color 0.35s;
}

/* scanlines overlay — dark only */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: var(--scanline);
  pointer-events: none;
  z-index: 100;
}

/* ── ALERT OVERLAY ── */
#alert-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-danger-bg);
  pointer-events: none;
  z-index: 50;
  opacity: 0;
  transition: opacity 0.3s;
}
body.danger #alert-overlay {
  opacity: 1;
  animation: pulseOverlay 1.2s ease-in-out infinite;
}
@keyframes pulseOverlay {
  0%,100% { background: rgba(230,57,70,0.04); }
  50%      { background: rgba(230,57,70,0.13); }
}
[data-theme="light"] #alert-overlay { --color-danger-bg: rgba(193,18,31,0.05); }

/* ── HEADER ── */
header {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 2rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 20;
  transition: background 0.35s, border-color 0.35s;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.logo-slash {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  color: var(--color-danger);
}
.logo-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text);
}
.logo-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--color-muted);
  letter-spacing: 0.2em;
  border: 1px solid var(--color-border);
  padding: 1px 6px;
  border-radius: 2px;
}

/* UPDATE BLOCK (center) */
.header-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  min-width: 200px;
}

.update-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
}

.update-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.update-label strong {
  color: var(--color-text);
  font-weight: 500;
}

.progress-track {
  width: 100%;
  max-width: 200px;
  height: 3px;
  background: var(--color-progress-bg);
  border-radius: 99px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 100%;
  background: var(--color-progress-fill);
  border-radius: 99px;
  transform-origin: left;
  transition: transform 1s linear, background 0.35s;
}
body.danger .progress-fill {
  background: var(--color-danger);
}

.refresh-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  padding: 4px 10px;
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, transform 0.15s;
}
.refresh-btn:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text);
}
.refresh-btn:active { transform: scale(0.97); }
.refresh-btn svg { flex-shrink: 0; }
.refresh-btn.spinning svg {
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* HEADER RIGHT */
.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.status-badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  border: 1px solid;
  transition: all 0.3s;
  white-space: nowrap;
}
.status-badge.safe {
  background: var(--color-safe-bg);
  color: var(--color-safe-light);
  border-color: var(--color-safe-light);
}
.status-badge.alarm {
  background: rgba(230,57,70,0.15);
  color: #ff8fa3;
  border-color: var(--color-danger);
  animation: badgePulse 0.8s steps(1) infinite;
}
[data-theme="light"] .status-badge.alarm {
  color: var(--color-danger);
}
@keyframes badgePulse {
  0%,49%  { opacity: 1; }
  50%,100% { opacity: 0.45; }
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  width: 30px;
  height: 30px;
  border-radius: 2px;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s, transform 0.2s;
}
.theme-toggle:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text);
  transform: rotate(20deg);
}

.clock {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--color-muted);
  letter-spacing: 0.05em;
  min-width: 68px;
  text-align: right;
}

/* ── MAIN ── */
main {
  width: 100%;
  max-width: 960px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
}

/* ── MAIN CARD ── */
.main-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 3rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
  box-shadow: var(--shadow-card);
}
body.danger .main-card {
  border-color: var(--color-danger);
}
[data-theme="dark"] body.danger .main-card {
  background: #110a0a;
}
[data-theme="light"] body.danger .main-card {
  background: #fff8f8;
}

.card-accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-safe-light);
  transition: background 0.3s;
}
body.danger .card-accent {
  background: var(--color-danger);
  animation: scanLine 2s linear infinite;
}
@keyframes scanLine {
  0%   { transform: scaleX(0); transform-origin: left; }
  50%  { transform: scaleX(1); transform-origin: left; }
  50.01% { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* DRONE ICON */
.drone-icon-wrap {
  width: 96px;
  height: 96px;
  margin: 0 auto 1.5rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.drone-svg {
  width: 80px;
  height: 80px;
  color: var(--color-safe-light);
  transition: color 0.3s;
  position: relative;
  z-index: 2;
}
body.danger .drone-svg {
  color: var(--color-danger);
  animation: droneSpin 3s linear infinite;
}
@keyframes droneSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* PULSE RINGS */
.pulse-ring {
  position: absolute;
  border-radius: 50%;
  border: 2px solid var(--color-danger);
  opacity: 0;
  pointer-events: none;
}
body.danger .ring1 {
  width: 96px; height: 96px;
  animation: ringPulse 1.8s ease-out infinite;
}
body.danger .ring2 {
  width: 120px; height: 120px;
  animation: ringPulse 1.8s ease-out 0.6s infinite;
}
@keyframes ringPulse {
  0%   { transform: scale(0.5); opacity: 0.7; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* STATUS TEXT */
.main-status-text {
  font-size: clamp(2rem, 6vw, 3.8rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 0.5rem;
  color: var(--color-safe-light);
  transition: color 0.3s;
}
body.danger .main-status-text {
  color: var(--color-danger);
  animation: textFlicker 4s ease-in-out infinite;
}
@keyframes textFlicker {
  0%,100% { opacity: 1; }
  91%  { opacity: 1; }
  92%  { opacity: 0.7; }
  93%  { opacity: 1; }
  95%  { opacity: 0.5; }
  96%  { opacity: 1; }
}

.main-subtitle {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 1.75rem;
  letter-spacing: 0.04em;
  transition: color 0.3s;
}
body.danger .main-subtitle {
  color: var(--color-danger-muted);
}

.elapsed-timer {
  display: none;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 2.4rem;
  font-weight: 500;
  color: var(--color-danger);
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
  animation: timerGlow 1s ease-in-out infinite alternate;
}
body.danger .elapsed-timer { display: block; }
@keyframes timerGlow {
  from { opacity: 1; }
  to   { opacity: 0.65; }
}

/* SHELTER PANEL */
.shelter-panel {
  display: none;
  background: var(--color-surface2);
  border: 1px solid var(--color-danger-dark);
  border-radius: 4px;
  padding: 1.4rem;
  text-align: left;
  animation: slideDown 0.4s cubic-bezier(.22,1,.36,1);
  margin-top: 0.5rem;
}
[data-theme="light"] .shelter-panel {
  background: #fff5f5;
  border-color: #f4a0a0;
}
body.danger .shelter-panel { display: block; }
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.shelter-header {
  font-size: 11px;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--color-danger);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.shelter-dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--color-danger);
  border-radius: 50%;
  animation: badgePulse 0.8s steps(1) infinite;
}

.shelter-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.shelter-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--color-text);
  opacity: 0.9;
}
[data-theme="light"] .shelter-steps li { color: #3a1010; }

.step-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  min-width: 24px; height: 24px;
  background: rgba(230,57,70,0.15);
  color: var(--color-danger);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── INFO GRID ── */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1.1rem 1.25rem;
  transition: background 0.35s, border-color 0.35s;
}
.info-card-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.45rem;
}
.info-card-value {
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.3s;
}
.info-card-value.small { font-size: 0.95rem; padding-top: 6px; }
.info-card-value.ok   { color: var(--color-safe-light); }
.info-card-value.warn { color: var(--color-warning); }

/* ── CONTROLS ── */
.controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.controls button {
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.75rem 2rem;
  border-radius: 2px;
  border: 1px solid;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s, opacity 0.15s;
  position: relative;
  overflow: hidden;
}
.controls button:active { transform: scale(0.97); }

.btn-danger {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: #fff;
}
.btn-danger:hover { filter: brightness(0.88); }

.btn-safe {
  background: transparent;
  border-color: var(--color-safe-light);
  color: var(--color-safe-light);
}
.btn-safe:hover { background: var(--color-safe-bg); }

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

/* ── LOG ── */
.log-section { }
.log-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.6rem;
}
.event-log {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 0.85rem 1rem;
  max-height: 160px;
  overflow-y: auto;
  display: flex;
  flex-direction: column-reverse;
  gap: 5px;
  transition: background 0.35s, border-color 0.35s;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}
.log-entry {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--color-muted);
  display: flex;
  gap: 12px;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.log-time { color: var(--color-muted2); min-width: 72px; }
.log-entry.danger-log { color: #cc4444; }
.log-entry.safe-log   { color: var(--color-safe-light); }
.log-entry.info-log   { color: var(--color-muted); }

/* ── FOOTER ── */
footer {
  margin-top: auto;
  padding: 1.25rem 2rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--color-footer-text);
  text-align: center;
  border-top: 1px solid var(--color-border);
  width: 100%;
  transition: color 0.35s, border-color 0.35s;
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  header {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
  }
  .header-center {
    grid-column: 1 / -1;
    order: 3;
  }
  .logo-sub { display: none; }
  main { padding: 1.25rem 1rem; }
  .main-card { padding: 2rem 1.25rem; }
  .controls { flex-direction: column; align-items: stretch; }
  .controls button { text-align: center; }
}