/* ============================================================
   TNDS Spark — style.css
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg-base:     #000000;
  --bg-card:     #111111;
  --bg-raised:   #1A1A1A;
  --gold:        #FFB800;
  --gold-bright: #FFD700;
  --accent:      #FF6B00;
  --white:       #FFFFFF;
  --gray-light:  #888888;
  --gray-dark:   #333333;
  --success:     #00C48C;
  --radius-sm:   8px;
  --radius-md:   14px;
  --shadow-gold: 0 4px 24px rgba(255,184,0,0.2);
  --transition:  0.25s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg-base);
  color: var(--white);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow-x: hidden;
}

#app {
  width: 100%;
  max-width: 430px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.screen { display: none; flex-direction: column; width: 100%; min-height: 100vh; }
.screen.active { display: flex; }

/* ── Hero ────────────────────────────────────────────────────── */
.hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 36px 24px 20px;
  text-align: center;
  gap: 10px;
}

.hero-logo { width: 130px; object-fit: contain; }

.hero-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
}
.hero-title .gold { color: var(--gold); }

.hero-sub {
  font-size: 13px;
  color: var(--gray-light);
  line-height: 1.5;
  max-width: 280px;
}

/* ── Day Tabs ────────────────────────────────────────────────── */
.day-tabs {
  display: flex;
  gap: 8px;
  padding: 0 16px 14px;
}

.day-tab {
  flex: 1;
  padding: 10px 8px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--gray-dark);
  background: var(--bg-card);
  color: var(--gray-light);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.day-tab.active {
  border-color: var(--gold);
  background: rgba(255,184,0,0.08);
  color: var(--gold);
}

/* ── Sessions List ───────────────────────────────────────────── */
.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 16px 32px;
  flex: 1;
}

.session-card {
  background: var(--bg-card);
  border: 1px solid var(--gray-dark);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.session-card:active {
  transform: scale(0.98);
}

.session-card:hover {
  border-color: var(--gold);
  background: rgba(255,184,0,0.04);
}

.session-card.session-break {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

.session-time {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  color: var(--gold);
  text-transform: uppercase;
}

.session-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  line-height: 1.35;
}

.session-speaker {
  font-size: 12px;
  color: var(--gray-light);
  line-height: 1.4;
}

.keynote-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #FFB800, #FF6B00);
  color: #000;
  padding: 2px 8px;
  border-radius: 100px;
  vertical-align: middle;
  margin-left: 6px;
}

.session-cta {
  font-size: 12px;
  color: var(--gold);
  font-weight: 600;
  margin-top: 4px;
}

/* ── Card Screen Header ──────────────────────────────────────── */
.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--gray-dark);
  flex-shrink: 0;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--gold);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 0;
}

.card-header-title {
  font-size: 16px;
  font-weight: 700;
}

/* ── Session info banner (on photo-picker screen) ────────────── */
.session-info-banner {
  margin: 16px 16px 0;
  padding: 14px 16px;
  background: rgba(255,184,0,0.07);
  border: 1px solid rgba(255,184,0,0.2);
  border-radius: var(--radius-md);
}

.banner-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 4px;
}

.banner-speaker {
  font-size: 12px;
  color: var(--gold);
}

/* ── Photo Picker ────────────────────────────────────────────── */
.photo-picker {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.spark-input-wrap {
  padding: 16px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: var(--gray-light);
  text-transform: uppercase;
}

.form-optional {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--gray);
  font-size: 11px;
}

.spark-textarea {
  width: 100%;
  background: var(--bg-raised);
  border: 1.5px solid var(--gray-dark);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  padding: 12px 14px;
  resize: none;
  outline: none;
  transition: var(--transition);
}
.spark-textarea:focus { border-color: var(--gold); }

.spark-input {
  width: 100%;
  background: var(--bg-raised);
  border: 1.5px solid var(--gray-dark);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  padding: 11px 14px;
  outline: none;
  transition: var(--transition);
}
.spark-input:focus { border-color: var(--gold); }

.char-count {
  font-size: 11px;
  color: var(--gray);
  text-align: right;
  margin-top: -2px;
}

.photo-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 16px;
}

.btn-camera, .btn-upload {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px;
  border-radius: var(--radius-md);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-camera {
  background: linear-gradient(135deg, var(--gold), var(--accent));
  color: #000;
}

.btn-upload {
  background: var(--bg-raised);
  color: var(--white);
  border: 1.5px solid var(--gray-dark);
}

.btn-camera:hover { opacity: 0.9; }
.btn-upload:hover { border-color: var(--gold); }

.photo-hint {
  font-size: 12px;
  color: var(--gray-light);
  text-align: center;
  padding: 0 32px 24px;
  line-height: 1.5;
}

/* ── Crop Screen ─────────────────────────────────────────────── */
.crop-hint {
  font-size: 12px;
  color: var(--gray-light);
  text-align: center;
  padding: 8px 16px;
}

.crop-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #000;
  touch-action: none;
  cursor: grab;
}
.crop-viewport:active { cursor: grabbing; }

#crop-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: block;
}

.crop-frame {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border: 2px solid rgba(255,184,0,0.6);
  box-shadow: inset 0 0 0 9999px rgba(0,0,0,0.25);
}

/* Corner markers */
.crop-frame::before,
.crop-frame::after {
  content: '';
  position: absolute;
  width: 28px; height: 28px;
  border-color: var(--gold);
  border-style: solid;
}
.crop-frame::before {
  top: 0; left: 0;
  border-width: 3px 0 0 3px;
}
.crop-frame::after {
  bottom: 0; right: 0;
  border-width: 0 3px 3px 0;
}

.crop-zoom-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  color: var(--gray-light);
}

.crop-zoom-wrap input[type=range] {
  flex: 1;
  accent-color: var(--gold);
  height: 4px;
  cursor: pointer;
}

.crop-actions {
  padding: 0 16px 24px;
}

/* ── Card Preview ────────────────────────────────────────────── */
.card-preview {
  display: flex;
  flex-direction: column;
  flex: 1;
}

#spark-canvas {
  width: 100% !important;
  max-width: 100%;
  height: auto !important;
  display: block;
  overflow: hidden;
}

.card-actions {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 8px;
  padding: 14px 16px;
}

.btn-retake {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 13px 10px;
  background: var(--bg-raised);
  border: 1.5px solid var(--gray-dark);
  border-radius: var(--radius-md);
  color: var(--gray-light);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-retake:hover { border-color: var(--gray-light); color: var(--white); }

.btn-share-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px;
  background: var(--gold);
  border: none;
  border-radius: var(--radius-md);
  color: #000;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.btn-share-primary:hover { background: var(--gold-bright); }

.btn-save {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 13px 10px;
  background: var(--bg-raised);
  border: 1.5px solid var(--gray-dark);
  border-radius: var(--radius-md);
  color: var(--gray-light);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-save:hover { border-color: var(--gold); color: var(--gold); }

/* ── Fallback Share ──────────────────────────────────────────── */
.fallback-share {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0 16px 24px;
}

.fallback-label {
  font-size: 12px;
  color: var(--gray-light);
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.share-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.share-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 10px 4px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  transition: var(--transition);
}
.share-btn:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-whatsapp  { background: #25D366; }
.btn-instagram { background: linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888); }
.btn-facebook  { background: #1877F2; }
.btn-linkedin  { background: #0A66C2; }