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

:root {
  --bg:        #08080f;
  --bg2:       #0d0d1a;
  --surface:   rgba(255,255,255,0.04);
  --border:    rgba(255,255,255,0.08);
  --purple:    #a855f7;
  --cyan:      #06b6d4;
  --pink:      #ec4899;
  --gold:      #f59e0b;
  --green:     #10b981;
  --text:      #f1f5f9;
  --muted:     #94a3b8;
  --dim:       #475569;
  --radius:    16px;
  --radius-sm: 10px;
  --font:      'Outfit', sans-serif;
  --mono:      'JetBrains Mono', monospace;
  --glow-p:    0 0 40px rgba(168,85,247,0.3);
  --glow-c:    0 0 40px rgba(6,182,212,0.3);
}

html { scroll-behavior: smooth; }

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

/* ─── Animated Background ───────────────────────────────────────────────────── */
.bg-orbs {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  overflow: hidden;
}
.orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.18;
  animation: floatOrb 12s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #a855f7, transparent);
  top: -10%; left: -10%;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #06b6d4, transparent);
  top: 30%; right: -5%;
  animation-delay: -4s;
}
.orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, #ec4899, transparent);
  bottom: -5%; left: 40%;
  animation-delay: -8s;
}
@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(30px, -20px) scale(1.05); }
  66%  { transform: translate(-15px, 25px) scale(0.97); }
}
.grid-overlay {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ─── Navbar ────────────────────────────────────────────────────────────────── */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8,8,15,0.7);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.nav-inner {
  max-width: 900px; margin: 0 auto;
  height: 60px; display: flex;
  align-items: center; justify-content: space-between;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text);
}
.brand-icon { font-size: 1.4rem; }
.brand-name { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; }
.brand-accent { color: var(--purple); }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.history-toggle-btn {
  background: transparent; border: none;
  color: var(--muted); font-family: var(--font);
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  display: flex; align-items: center; gap: 6px;
  transition: color 0.2s;
}
.history-toggle-btn:hover { color: var(--text); }
.nav-badge {
  font-size: 0.72rem; font-weight: 500;
  color: var(--cyan); background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.25);
  padding: 4px 12px; border-radius: 100px;
}

/* ─── Main Layout ───────────────────────────────────────────────────────────── */
.main-content {
  position: relative; z-index: 1;
  max-width: 900px; margin: 0 auto;
  padding: 60px 24px 80px;
}

/* ─── Hero ──────────────────────────────────────────────────────────────────── */
.hero { text-align: center; margin-bottom: 80px; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 24px;
}
.kicker-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%  { opacity: 0.5; transform: scale(0.8); }
}
.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900; line-height: 1.1;
  letter-spacing: -0.03em; margin-bottom: 20px;
}
.title-gradient {
  background: linear-gradient(135deg, var(--purple), var(--cyan), var(--pink));
  background-size: 200%;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50%       { background-position: 100% 50%; }
}
.hero-sub {
  font-size: 1.05rem; color: var(--muted);
  max-width: 560px; margin: 0 auto 40px;
  font-weight: 400;
}

/* ─── Input Card ─────────────────────────────────────────────────────────────── */
.input-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 32px;
  backdrop-filter: blur(20px);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.input-card:focus-within {
  border-color: rgba(168,85,247,0.4);
  box-shadow: var(--glow-p);
}
.input-label {
  display: block;
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 10px;
}
.idea-textarea {
  width: 100%; resize: vertical; min-height: 90px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text); font-family: var(--font);
  font-size: 1rem; line-height: 1.6;
  padding: 14px 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.idea-textarea::placeholder { color: var(--dim); }
.idea-textarea:focus {
  border-color: rgba(168,85,247,0.5);
  box-shadow: 0 0 0 3px rgba(168,85,247,0.1);
}
.input-footer {
  display: flex; justify-content: space-between;
  align-items: center; margin-top: 8px;
}
.input-hint { font-size: 0.78rem; color: var(--dim); }
.char-counter { font-size: 0.78rem; color: var(--dim); font-variant-numeric: tabular-nums; }
.char-counter.warn { color: var(--gold); }
.char-counter.danger { color: var(--pink); }

/* ─── Options (Format & Tone) ───────────────────────────────────────────────── */
.options-container {
  display: flex; gap: 24px; margin-top: 20px;
  padding-top: 20px; border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.option-group { display: flex; flex-direction: column; gap: 8px; flex: 1; min-width: 250px; }
.options-label { font-size: 0.78rem; font-weight: 600; color: var(--dim); text-transform: uppercase; letter-spacing: 0.05em; }

/* Segmented Control (Format) */
.segmented-control {
  display: flex; background: rgba(0,0,0,0.3);
  border-radius: var(--radius-sm); padding: 4px;
  border: 1px solid var(--border);
}
.segmented-control input { display: none; }
.segmented-control label {
  flex: 1; text-align: center; padding: 8px 12px;
  font-size: 0.85rem; font-weight: 600; color: var(--muted);
  cursor: pointer; border-radius: 6px; transition: all 0.2s;
}
.segmented-control input:checked + label {
  background: rgba(255,255,255,0.1); color: var(--text);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Tone Chips */
.tone-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.tone-chips input { display: none; }
.tone-chip {
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  color: var(--muted); font-size: 0.85rem; font-weight: 500;
  padding: 6px 14px; border-radius: 100px; cursor: pointer; transition: all 0.2s;
}
.tone-chips input:checked + .tone-chip {
  background: rgba(168,85,247,0.15); border-color: rgba(168,85,247,0.5);
  color: var(--purple); box-shadow: 0 0 15px rgba(168,85,247,0.2);
}

/* ─── Example Chips ─────────────────────────────────────────────────────────── */
.example-chips {
  display: flex; flex-wrap: wrap;
  align-items: center; gap: 8px;
  margin: 20px 0;
}
.chips-label {
  font-size: 0.78rem; color: var(--dim);
  font-weight: 600; margin-right: 2px;
}
.chip {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--muted); font-family: var(--font);
  font-size: 0.78rem; font-weight: 500;
  padding: 6px 14px; border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s;
}
.chip:hover {
  background: rgba(168,85,247,0.12);
  border-color: rgba(168,85,247,0.4);
  color: var(--purple);
  transform: translateY(-1px);
}

/* ─── Generate Button ───────────────────────────────────────────────────────── */
.generate-btn {
  width: 100%; padding: 16px 32px;
  background: linear-gradient(135deg, var(--purple), #7c3aed);
  border: none; border-radius: var(--radius);
  color: #fff; font-family: var(--font);
  font-size: 1rem; font-weight: 700;
  cursor: pointer; display: flex;
  align-items: center; justify-content: center; gap: 10px;
  transition: all 0.25s;
  position: relative; overflow: hidden;
  margin-top: 8px;
  box-shadow: 0 4px 24px rgba(168,85,247,0.35);
}
.generate-btn::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0; transition: opacity 0.2s;
}
.generate-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(168,85,247,0.5);
}
.generate-btn:hover::before { opacity: 1; }
.generate-btn:active:not(:disabled) { transform: translateY(0); }
.generate-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-loader {
  display: none; width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.generate-btn.loading .btn-text { display: none; }
.generate-btn.loading .btn-icon { display: none; }
.generate-btn.loading .btn-loader { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Error ─────────────────────────────────────────────────────────────────── */
.error-msg {
  margin-top: 16px; padding: 12px 16px;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--radius-sm);
  color: #fca5a5; font-size: 0.88rem;
  display: flex; align-items: center; gap: 8px;
}
.error-msg::before { content: '⚠'; }

/* ─── Results Section ───────────────────────────────────────────────────────── */
.results-section {
  animation: fadeUp 0.5s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.results-header {
  display: flex; align-items: center;
  justify-content: space-between; margin-bottom: 20px;
}
.results-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--green);
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  padding: 6px 16px; border-radius: 100px;
}
.regenerate-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--muted); font-family: var(--font);
  font-size: 0.85rem; font-weight: 600;
  padding: 8px 18px; border-radius: var(--radius-sm);
  cursor: pointer; display: flex; align-items: center; gap: 6px;
  transition: all 0.2s;
}
.regenerate-btn:hover {
  border-color: rgba(168,85,247,0.4);
  color: var(--purple);
}

/* ─── Meta Banner ───────────────────────────────────────────────────────────── */
.meta-banner {
  display: flex; align-items: center; gap: 0;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 24px;
  margin-bottom: 24px;
}
.meta-item { display: flex; align-items: center; gap: 12px; flex: 1; }
.meta-icon { font-size: 1.3rem; }
.meta-key {
  display: block; font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--dim);
}
.meta-val { display: block; font-size: 0.98rem; font-weight: 700; color: var(--text); }
.meta-divider {
  width: 1px; height: 40px;
  background: var(--border); margin: 0 24px;
}

/* ─── Output Cards ───────────────────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px; margin-bottom: 20px;
}
@media (max-width: 640px) { .cards-grid { grid-template-columns: 1fr; } }

.output-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex; flex-direction: column; gap: 16px;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  animation: fadeUp 0.5s ease both;
}
.output-card:hover {
  transform: translateY(-3px);
}
.card-hook:hover  { border-color: rgba(168,85,247,0.4); box-shadow: var(--glow-p); }
.card-visual:hover{ border-color: rgba(6,182,212,0.4);  box-shadow: var(--glow-c); }
.card-dist:hover  { border-color: rgba(245,158,11,0.4); box-shadow: 0 0 40px rgba(245,158,11,0.2); }
.card-angle:hover { border-color: rgba(16,185,129,0.4); box-shadow: 0 0 40px rgba(16,185,129,0.2); }

.card-header { display: flex; align-items: flex-start; gap: 14px; }
.card-icon-wrap {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center; font-size: 1.2rem;
  flex-shrink: 0;
}
.hook-icon   { background: rgba(168,85,247,0.15); }
.visual-icon { background: rgba(6,182,212,0.15); }
.dist-icon   { background: rgba(245,158,11,0.15); }
.angle-icon  { background: rgba(16,185,129,0.15); }

.card-title  { font-size: 0.95rem; font-weight: 700; line-height: 1.2; }
.card-sub    { font-size: 0.76rem; color: var(--dim); margin-top: 2px; }
.card-body   { flex: 1; }

.span-2 { grid-column: span 2; }
.full-icon { background: rgba(236,72,153,0.15); }
.card-full:hover { border-color: rgba(236,72,153,0.4); box-shadow: 0 0 40px rgba(236,72,153,0.2); }

.full-text {
  font-family: var(--font); font-size: 0.95rem; color: var(--text);
  line-height: 1.6; white-space: pre-wrap; word-break: break-word;
  background: rgba(0,0,0,0.2); padding: 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); max-height: 400px; overflow-y: auto;
}

.hook-text {
  font-size: 1.15rem; font-weight: 700;
  line-height: 1.4; color: var(--text);
  letter-spacing: -0.01em;
}
.prompt-text {
  font-family: var(--mono);
  font-size: 0.78rem; line-height: 1.7;
  color: var(--cyan); word-break: break-word;
}
.angle-text { font-size: 0.9rem; color: var(--muted); line-height: 1.6; }

.hashtags-wrap { display: flex; flex-wrap: wrap; gap: 8px; }
.hashtag-pill {
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  color: var(--gold); font-family: var(--mono);
  font-size: 0.8rem; font-weight: 600;
  padding: 5px 12px; border-radius: 100px;
  cursor: pointer; transition: all 0.2s;
}
.hashtag-pill:hover {
  background: rgba(245,158,11,0.2);
  transform: scale(1.05);
}

.card-footer {
  display: flex; align-items: center;
  justify-content: space-between; padding-top: 12px;
  border-top: 1px solid var(--border);
}
.card-tag { font-size: 0.72rem; color: var(--dim); }

/* ─── Copy Button ───────────────────────────────────────────────────────────── */
.copy-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--muted); font-family: var(--font);
  font-size: 0.78rem; font-weight: 600;
  padding: 6px 12px; border-radius: var(--radius-sm);
  cursor: pointer; display: flex; align-items: center; gap: 5px;
  transition: all 0.2s;
}
.copy-btn:hover { border-color: rgba(168,85,247,0.4); color: var(--purple); }
.copy-btn.copied { border-color: rgba(16,185,129,0.4); color: var(--green); }
.copy-icon { font-size: 0.85rem; }

/* ─── Export Row ────────────────────────────────────────────────────────────── */
.export-row { display: flex; justify-content: center; }
.export-btn {
  padding: 14px 40px;
  background: linear-gradient(135deg, #1e1b4b, #312e81);
  border: 1px solid rgba(168,85,247,0.35);
  color: var(--purple); font-family: var(--font);
  font-size: 0.95rem; font-weight: 700;
  border-radius: var(--radius); cursor: pointer;
  display: flex; align-items: center; gap: 10px;
  transition: all 0.25s;
}
.export-btn:hover {
  background: linear-gradient(135deg, #2e2a68, #4338ca);
  box-shadow: var(--glow-p); transform: translateY(-2px);
}

/* ─── How It Works ──────────────────────────────────────────────────────────── */
.how-section { margin-top: 100px; text-align: center; }
.section-title {
  font-size: 1.6rem; font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: 40px;
}
.steps-grid {
  display: flex; align-items: center;
  justify-content: center; gap: 0;
  flex-wrap: wrap; gap: 16px;
}
.step-card {
  flex: 1; min-width: 180px; max-width: 240px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 20px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}
.step-card:hover { border-color: rgba(168,85,247,0.3); transform: translateY(-4px); }
.step-num { font-size: 0.7rem; font-weight: 700; color: var(--purple); letter-spacing: 0.1em; margin-bottom: 12px; }
.step-icon { font-size: 2rem; margin-bottom: 12px; }
.step-title { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; }
.step-desc { font-size: 0.8rem; color: var(--muted); line-height: 1.5; }
.step-arrow { font-size: 1.4rem; color: var(--dim); flex-shrink: 0; }

/* ─── History Sidebar ────────────────────────────────────────────────────────── */
.history-sidebar {
  position: fixed; top: 0; right: 0; bottom: 0; width: 340px;
  background: rgba(13,13,26,0.95); backdrop-filter: blur(20px);
  border-left: 1px solid var(--border); z-index: 1000;
  transform: translateX(100%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex; flex-direction: column; box-shadow: -10px 0 40px rgba(0,0,0,0.5);
}
.history-sidebar.open { transform: translateX(0); }
.history-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px; border-bottom: 1px solid var(--border);
}
.history-header h2 { font-size: 1.1rem; font-weight: 700; }
.close-btn {
  background: transparent; border: none; color: var(--muted);
  font-size: 1.2rem; cursor: pointer; transition: color 0.2s;
}
.close-btn:hover { color: var(--text); }
.history-list {
  flex: 1; overflow-y: auto; padding: 24px;
  display: flex; flex-direction: column; gap: 16px;
}
.empty-history { text-align: center; color: var(--dim); font-size: 0.9rem; margin-top: 40px; }
.history-item {
  background: rgba(255,255,255,0.03); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 16px; cursor: pointer;
  transition: all 0.2s;
}
.history-item:hover {
  background: rgba(255,255,255,0.06); border-color: rgba(168,85,247,0.3);
}
.history-item-idea { font-size: 0.85rem; font-weight: 600; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.history-item-meta { font-size: 0.72rem; color: var(--dim); display: flex; gap: 8px; }

/* ─── Footer ────────────────────────────────────────────────────────────────── */
.footer {
  position: relative; z-index: 1;
  text-align: center; padding: 32px 24px;
  border-top: 1px solid var(--border);
}
.footer-text { font-size: 0.82rem; color: var(--dim); }
.footer-text strong { color: var(--muted); }

/* ─── Hidden Utility ─────────────────────────────────────────────────────────── */
[hidden] { display: none !important; }

@media (max-width: 640px) {
  .span-2 { grid-column: auto; }
}

@media (max-width: 480px) {
  .meta-banner { flex-direction: column; gap: 12px; }
  .meta-divider { display: none; }
  .steps-grid { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); }
  .history-sidebar { width: 100%; }
}