/* ============================================================
   Project Veda – Style Sheet
   Theme: Military HUD / Dark Terminal
   ============================================================ */

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

:root {
  --bg: #080c0e;
  --bg-panel: #0d1418;
  --bg-panel2: #111a1f;
  --accent: #00ff88;
  --accent2: #00ccff;
  --danger: #ff4455;
  --text: #c8d8dc;
  --text-dim: #4a6a72;
  --border: rgba(0, 255, 136, 0.18);
  --border2: rgba(0, 204, 255, 0.15);
  --glow: 0 0 18px rgba(0, 255, 136, 0.3);
  --glow2: 0 0 18px rgba(0, 204, 255, 0.25);
  --font-hud: "Orbitron", monospace;
  --font-mono: "Share Tech Mono", monospace;
  --font-body: "Inter", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

/* --- Scanlines overlay --- */
.scanlines {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.06) 2px,
    rgba(0, 0, 0, 0.06) 4px
  );
}

/* ============================================================
   Header
   ============================================================ */
.hud-header {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    rgba(0, 255, 136, 0.04) 0%,
    transparent 100%
  );
  padding: 0 2rem;
  height: 70px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-block {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.logo-icon {
  font-family: var(--font-hud);
  font-size: 1.8rem;
  color: var(--accent);
  text-shadow: var(--glow);
  animation: pulse-icon 3s ease-in-out infinite;
}

@keyframes pulse-icon {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-title {
  font-family: var(--font-hud);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-shadow: var(--glow);
}

.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  margin-top: 4px;
}

.status-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--glow);
  animation: blink-dot 1.4s ease-in-out infinite;
}

@keyframes blink-dot {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.2;
  }
}

/* ============================================================
   Main Layout
   ============================================================ */
.main-container {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .main-container {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Panel
   ============================================================ */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  min-height: 520px;
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.7;
}

.upload-panel::before {
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.result-panel::before {
  background: linear-gradient(90deg, transparent, var(--accent2), transparent);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.8rem;
}

.panel-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
}

.result-panel .panel-label {
  color: var(--accent2);
}

.result-status {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border: 1px solid var(--text-dim);
  border-radius: 2px;
  transition: all 0.3s;
}

.result-status.active {
  color: var(--accent2);
  border-color: var(--accent2);
  box-shadow: var(--glow2);
}

.result-status.done {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: var(--glow);
}

/* ============================================================
   Drop Zone
   ============================================================ */
.drop-zone {
  border: 1.5px dashed var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  flex: 1;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(0, 255, 136, 0.04);
  box-shadow: var(--glow);
}

.drop-zone-inner {
  text-align: center;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  padding: 2rem;
}

.drop-icon {
  font-size: 3rem;
  color: var(--accent);
  opacity: 0.6;
  line-height: 1;
  transition: all 0.25s;
}

.drop-zone:hover .drop-icon {
  opacity: 1;
  transform: scale(1.1);
}

.drop-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  letter-spacing: 0.05em;
}

.drop-sub {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ============================================================
   Image Preview
   ============================================================ */
.preview-container {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
  flex: 1;
}

.preview-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 220px;
  max-height: 300px;
  filter: brightness(0.85) saturate(0.85);
}

.preview-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.5rem 1rem;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.2em;
}

.preview-label::before {
  content: "● ";
  animation: blink-dot 0.8s ease-in-out infinite;
}

/* ============================================================
   Analyze Button
   ============================================================ */
.analyze-btn {
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  cursor: pointer;
  border-radius: 3px;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-hud);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  transition: all 0.2s;
  text-shadow: var(--glow);
  position: relative;
  overflow: hidden;
}

.analyze-btn::before {
  content: "";
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 255, 136, 0.1),
    transparent
  );
  transition: left 0.4s;
}

.analyze-btn:hover::before {
  left: 100%;
}

.analyze-btn:hover {
  background: rgba(0, 255, 136, 0.08);
  box-shadow: var(--glow);
}

.analyze-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-icon {
  font-size: 1rem;
}
.btn-text {
  flex: 1;
}
.btn-sub {
  font-size: 0.6rem;
  color: var(--text-dim);
}

/* ============================================================
   Result Panel States
   ============================================================ */
.idle-state,
.loading-state,
.error-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
  padding: 2rem;
}

.idle-icon {
  font-size: 3rem;
  color: var(--text-dim);
  animation: spin-slow 8s linear infinite;
}

@keyframes spin-slow {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.idle-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.8;
  letter-spacing: 0.05em;
}

/* Loading */
.loader-ring {
  width: 52px;
  height: 52px;
  border: 3px solid rgba(0, 204, 255, 0.1);
  border-top-color: var(--accent2);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loader-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent2);
  letter-spacing: 0.05em;
}

.loader-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.15em;
  animation: fade-pulse 1.5s ease-in-out infinite;
}

@keyframes fade-pulse {
  0%,
  100% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
}

/* Error */
.error-icon {
  font-size: 2.5rem;
  color: var(--danger);
}

.error-message {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--danger);
  line-height: 1.6;
}

/* ============================================================
   Result Content (Markdown rendered)
   ============================================================ */
.result-content {
  flex: 1;
  overflow-y: auto;
  padding-right: 0.3rem;
  animation: fadein 0.5s ease;
}

@keyframes fadein {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-content::-webkit-scrollbar {
  width: 4px;
}
.result-content::-webkit-scrollbar-track {
  background: transparent;
}
.result-content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

/* Rendered Markdown styles */
.result-content h3 {
  font-family: var(--font-hud);
  font-size: 0.75rem;
  color: var(--accent2);
  letter-spacing: 0.15em;
  margin: 1.2rem 0 0.6rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border2);
  text-shadow: var(--glow2);
}

.result-content h3:first-child {
  margin-top: 0;
}

.result-content p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.result-content ul,
.result-content ol {
  padding-left: 1.2rem;
  margin-bottom: 0.5rem;
}

.result-content li {
  font-size: 0.87rem;
  line-height: 1.9;
  color: var(--text);
}

.result-content strong {
  color: var(--accent);
  font-weight: 500;
}

/* ============================================================
   Footer
   ============================================================ */
.hud-footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

/* ============================================================
   Utility
   ============================================================ */
.hidden {
  display: none !important;
}