/* =============================================
   FINDLY v2.0 – style.css
   Dark futuristic design system with light mode
   ============================================= */

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

:root {
  --bg-base:      #0a0b0f;
  --bg-surface:   #111218;
  --bg-card:      #16181f;
  --bg-card-hover:#1c1f2a;
  --bg-input:     #0e0f15;

  --border:       rgba(255,255,255,0.07);
  --border-focus: rgba(99,102,241,0.6);

  --accent:       #6366f1;
  --accent-light: #818cf8;
  --accent-glow:  rgba(99,102,241,0.25);

  --green:        #22d3a0;
  --green-glow:   rgba(34,211,160,0.2);

  --text-primary:   #f0f2ff;
  --text-secondary: #8b92b3;
  --text-muted:     #4a4f6b;

  --red:    #f87171;
  --yellow: #fbbf24;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;

  --font: 'Inter', system-ui, -apple-system, sans-serif;

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 4px 32px rgba(0,0,0,0.45);
  --shadow-glow: 0 0 40px var(--accent-glow);
}

/* ----------- LIGHT THEME ----------- */
[data-theme="light"] {
  --bg-base:      #f4f5f9;
  --bg-surface:   #ebedf3;
  --bg-card:      #ffffff;
  --bg-card-hover:#f7f8fc;
  --bg-input:     #f0f1f6;

  --border:       rgba(0,0,0,0.08);
  --border-focus: rgba(99,102,241,0.5);

  --text-primary:   #1a1c2e;
  --text-secondary: #5a5f7d;
  --text-muted:     #9096b4;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.08);
}

html {
  scroll-behavior: smooth;
  transition: background var(--transition), color var(--transition);
}

body {
  font-family: var(--font);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

/* ----------- SCROLLBAR ----------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }

/* ----------- HEADER ----------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,11,15,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

[data-theme="light"] .header {
  background: rgba(244,245,249,0.88);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon { font-size: 1.3rem; }

.logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #f0f2ff 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .logo-text {
  background: linear-gradient(135deg, #1a1c2e 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.logo-badge {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 99px;
  background: var(--accent-glow);
  color: var(--accent-light);
  border: 1px solid rgba(99,102,241,0.3);
  text-transform: uppercase;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ----------- THEME TOGGLE ----------- */
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition);
}

.theme-toggle:hover {
  background: rgba(99,102,241,0.15);
  border-color: rgba(99,102,241,0.3);
  transform: rotate(20deg) scale(1.1);
}

/* ----------- HERO ----------- */
.hero {
  position: relative;
  text-align: center;
  padding: 90px 24px 70px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 8s ease-in-out infinite;
}

.orb-1 {
  width: 350px;
  height: 350px;
  background: rgba(99,102,241,0.3);
  top: -80px;
  left: 20%;
  animation-delay: 0s;
}

.orb-2 {
  width: 280px;
  height: 280px;
  background: rgba(139,92,246,0.25);
  top: 30px;
  right: 15%;
  animation-delay: -3s;
}

.orb-3 {
  width: 200px;
  height: 200px;
  background: rgba(34,211,160,0.2);
  bottom: -40px;
  left: 50%;
  animation-delay: -5s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(20px, -25px) scale(1.05); }
  66%      { transform: translate(-15px, 15px) scale(0.95); }
}

[data-theme="light"] .orb { opacity: 0.2; }

.hero-content { position: relative; z-index: 1; }

.hero-title {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -1.5px;
  margin-bottom: 18px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--green) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 30px;
  line-height: 1.7;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.badge {
  font-size: 0.78rem;
  padding: 7px 16px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: all var(--transition);
}

.badge:hover {
  border-color: rgba(99,102,241,0.3);
  background: rgba(99,102,241,0.06);
  transform: translateY(-2px);
}

/* ----------- MAIN ----------- */
.main-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ----------- CARD ----------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  animation: fadeUp 0.5s ease both;
}

.card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(99,102,241,0.05);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

.upload-section  { animation-delay: 0.05s; }
.search-section  { animation-delay: 0.12s; }
.summary-section { animation-delay: 0.19s; }

.card-header { margin-bottom: 22px; }

.card-title {
  font-size: 1.08rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.icon { font-size: 1.1rem; }

.card-subtitle {
  font-size: 0.83rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* KBD HINT */
.kbd-hint {
  display: inline-block;
  font-size: 0.65rem;
  font-family: var(--font);
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 5px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* ----------- DROP ZONE ----------- */
.drop-zone {
  border: 2px dashed rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 44px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
  background: var(--bg-input);
  position: relative;
}

.drop-zone:hover,
.drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(99,102,241,0.05);
  transform: scale(1.01);
}

.drop-zone:focus { outline: none; border-color: var(--accent); }

.drop-zone-inner { pointer-events: none; }

.drop-icon { font-size: 2.8rem; margin-bottom: 12px; }

.drop-text {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.drop-subtext {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.highlight-link { color: var(--accent-light); }

/* ----------- PROGRESS BAR ----------- */
.progress-wrap {
  margin-top: 16px;
  animation: fadeUp 0.3s ease both;
}

.progress-bar {
  width: 100%;
  height: 6px;
  border-radius: 99px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), var(--green));
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
}

/* ----------- FILE ITEM ----------- */
.file-list { margin-top: 14px; }

.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  animation: fadeUp 0.3s ease both;
  transition: border-color var(--transition);
}

.file-item:hover { border-color: rgba(99,102,241,0.2); }

.file-icon { font-size: 1.3rem; }

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.remove-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 6px 8px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.remove-btn:hover { color: var(--red); background: rgba(248,113,113,0.1); }

/* ----------- DOCUMENT STATS ----------- */
.doc-stats {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  animation: fadeUp 0.3s ease both;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.stat-item:hover {
  border-color: rgba(99,102,241,0.25);
  transform: translateY(-2px);
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-light);
}

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ----------- SEARCH ----------- */
.search-bar-wrap {
  display: flex;
  gap: 10px;
}

.search-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 18px;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input::placeholder { color: var(--text-muted); }

.search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ----------- BUTTONS ----------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  outline: none;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--ripple-x, 50%) var(--ripple-y, 50%), rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
}

.btn:active::after { opacity: 1; }

.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-light);
  box-shadow: 0 0 24px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
  color: #fff;
}

.btn-accent:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 28px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }

.btn.full-width { width: 100%; justify-content: center; padding: 15px; }

.btn-icon { font-size: 1rem; }

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  filter: none;
  box-shadow: none;
}

/* ----------- RESULTS ----------- */
.results-area { margin-top: 22px; }

.results-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  font-weight: 600;
}

.results-count {
  background: var(--accent-glow);
  color: var(--accent-light);
  border-radius: 99px;
  padding: 2px 9px;
  font-size: 0.72rem;
  margin-left: 4px;
}

.results-list { display: flex; flex-direction: column; gap: 10px; }

.result-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  animation: fadeUp 0.25s ease both;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.result-card:hover {
  border-color: rgba(99,102,241,0.35);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.result-card-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.result-match-icon { font-size: 0.85rem; }

.result-source {
  font-size: 0.72rem;
  color: var(--accent-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.result-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.result-text mark {
  background: rgba(99,102,241,0.25);
  color: var(--accent-light);
  border-radius: 3px;
  padding: 1px 3px;
}

.no-results {
  text-align: center;
  padding: 32px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ----------- API KEY ----------- */
.api-key-wrap { margin-bottom: 20px; }

.api-key-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 8px;
}

.api-key-row {
  display: flex;
  gap: 8px;
}

.api-key-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.88rem;
  color: var(--text-primary);
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.api-key-input::placeholder { color: var(--text-muted); }

.api-key-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.api-key-hint {
  font-size: 0.73rem;
  color: var(--text-muted);
  margin-top: 7px;
}

/* ----------- SPINNER ----------- */
.spinner-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 36px;
  animation: fadeUp 0.25s ease both;
}

.spinner {
  width: 38px;
  height: 38px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

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

.spinner-text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ----------- SUMMARY OUTPUT ----------- */
.summary-output { margin-top: 20px; animation: fadeUp 0.35s ease both; }

.summary-card {
  background: linear-gradient(135deg, rgba(99,102,241,0.08) 0%, rgba(139,92,246,0.05) 100%);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: var(--radius-md);
  padding: 22px 24px;
}

[data-theme="light"] .summary-card {
  background: linear-gradient(135deg, rgba(99,102,241,0.06) 0%, rgba(139,92,246,0.03) 100%);
}

.summary-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.summary-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.copy-btn {
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.25);
  color: var(--accent-light);
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 0.75rem;
  cursor: pointer;
  font-family: var(--font);
  transition: all var(--transition);
}

.copy-btn:hover { background: rgba(99,102,241,0.3); transform: translateY(-1px); }

.summary-text {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.8;
  white-space: pre-wrap;
}

/* Typing cursor animation */
.summary-text.typing::after {
  content: '▌';
  animation: blink 0.6s step-end infinite;
  color: var(--accent-light);
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ----------- ERROR ----------- */
.error-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(248,113,113,0.08);
  border: 1px solid rgba(248,113,113,0.25);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin-top: 16px;
  animation: fadeUp 0.25s ease both;
}

.error-icon { font-size: 1rem; flex-shrink: 0; margin-top: 2px; }

.error-msg {
  font-size: 0.85rem;
  color: var(--red);
  line-height: 1.5;
}

/* ----------- TOAST ----------- */
.toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: toastIn 0.35s ease both;
  max-width: 380px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.toast.toast-out {
  animation: toastOut 0.3s ease both;
}

.toast-success {
  background: rgba(34,211,160,0.15);
  border: 1px solid rgba(34,211,160,0.3);
  color: var(--green);
}

.toast-error {
  background: rgba(248,113,113,0.15);
  border: 1px solid rgba(248,113,113,0.3);
  color: var(--red);
}

.toast-info {
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.3);
  color: var(--accent-light);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(60px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(60px) scale(0.95); }
}

/* ----------- FOOTER ----------- */
.footer {
  text-align: center;
  padding: 28px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer strong { color: var(--text-secondary); }

.footer-version {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 99px;
  background: var(--accent-glow);
  color: var(--accent-light);
  margin-left: 4px;
  vertical-align: middle;
}

/* ----------- RESPONSIVE ----------- */
@media (max-width: 768px) {
  .header-inner { padding: 0 16px; }
  .hero { padding: 70px 16px 50px; }
  .main-container { padding: 0 16px 60px; }
  .card { padding: 22px 20px; }
  .doc-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat-value { font-size: 1.2rem; }
  .toast-container { right: 16px; left: 16px; }
  .toast { max-width: 100%; }
}

@media (max-width: 500px) {
  .header-inner { padding: 0 14px; }
  .hero { padding: 56px 14px 40px; }
  .main-container { padding: 0 14px 50px; }
  .card { padding: 18px 16px; }
  .search-bar-wrap { flex-direction: column; }
  .hero-title { font-size: 1.9rem; }
  .nav-tag { display: none; }
  .api-key-row { flex-direction: column; }
  .doc-stats { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .stat-item { padding: 12px 6px; }
  .stat-value { font-size: 1.1rem; }
}

/* ----------- HIDDEN UTILITY ----------- */
[hidden] { display: none !important; }