/* ============================================================
   Image Analysis Module — Premium UI
   ============================================================ */

:root {
  --bg-primary:    #05050a;
  --bg-secondary:  #0d0d15;
  --bg-card:       #0f0f1a;
  --bg-section:    #141420;
  --border:        rgba(255,255,255,0.06);
  --accent:        #6366f1;
  --accent-light:  #818cf8;
  --accent-gold:   #f59e0b;
  --accent-teal:   #14b8a6;
  --accent-rose:   #f43f5e;
  --accent-green:  #10b981;
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;
  --radius-md:     12px;
  --radius-lg:     18px;
  --radius-xl:     24px;
  --shadow-md:     0 8px 32px rgba(0,0,0,0.6);
  --transition:    all 0.2s cubic-bezier(0.4,0,0.2,1);
}

*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg-primary);
  color:var(--text-primary);
  min-height:100vh; line-height:1.6;
}

/* ── Ambient ── */
.ambient {
  position:fixed; inset:0; pointer-events:none; z-index:0; overflow:hidden;
}
.ambient::before {
  content:''; position:absolute;
  width:500px; height:500px; border-radius:50%;
  background:radial-gradient(circle,rgba(99,102,241,0.07) 0%,transparent 70%);
  top:-150px; left:-100px;
  animation:float1 20s ease-in-out infinite;
}
.ambient::after {
  content:''; position:absolute;
  width:400px; height:400px; border-radius:50%;
  background:radial-gradient(circle,rgba(20,184,166,0.05) 0%,transparent 70%);
  bottom:-100px; right:-80px;
  animation:float2 25s ease-in-out infinite;
}
@keyframes float1 { 0%,100%{transform:translate(0,0);} 50%{transform:translate(60px,40px);} }
@keyframes float2 { 0%,100%{transform:translate(0,0);} 50%{transform:translate(-50px,-60px);} }

/* ── Header ── */
.header {
  position:sticky; top:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:0 2.5rem; height:68px;
  background:rgba(5,5,10,0.85);
  backdrop-filter:blur(24px);
  border-bottom:1px solid var(--border);
}
.header-left { display:flex; align-items:center; gap:12px; }
.logo {
  font-family:'Space Grotesk',sans-serif;
  font-size:1.1rem; font-weight:700;
  color:var(--text-primary); text-decoration:none;
  display:flex; align-items:center; gap:9px;
}
.logo-icon {
  width:32px; height:32px;
  background:linear-gradient(135deg,var(--accent),var(--accent-light));
  border-radius:9px; display:flex; align-items:center;
  justify-content:center; font-size:0.95rem;
  box-shadow:0 4px 12px rgba(99,102,241,0.4);
}
.logo span { color:var(--accent-light); }
.module-badge {
  padding:3px 10px; border-radius:50px;
  background:rgba(20,184,166,0.1);
  border:1px solid rgba(20,184,166,0.25);
  color:var(--accent-teal); font-size:0.72rem;
  font-weight:700; text-transform:uppercase; letter-spacing:0.5px;
}
nav { display:flex; gap:4px; }
nav a {
  padding:7px 16px; border-radius:var(--radius-md);
  color:var(--text-secondary); text-decoration:none;
  font-size:0.875rem; font-weight:500; transition:var(--transition);
}
nav a:hover { color:var(--text-primary); background:rgba(255,255,255,0.04); }
nav a.active {
  background:rgba(99,102,241,0.12);
  color:var(--accent-light);
  border:1px solid rgba(99,102,241,0.2);
}

/* ── Main ── */
.main { position:relative; z-index:1; max-width:1000px; margin:0 auto; padding:2.5rem 1.5rem 5rem; }

/* ── Hero ── */
.hero { text-align:center; padding:3rem 0 2rem; }
.hero-tag {
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 16px; border-radius:50px;
  background:linear-gradient(135deg,rgba(99,102,241,0.1),rgba(20,184,166,0.08));
  border:1px solid rgba(99,102,241,0.2);
  color:var(--accent-light); font-size:0.75rem;
  font-weight:600; letter-spacing:0.8px;
  text-transform:uppercase; margin-bottom:1.2rem;
}
.hero h1 {
  font-family:'Space Grotesk',sans-serif;
  font-size:clamp(1.8rem,4vw,2.8rem);
  font-weight:800; letter-spacing:-1px;
  line-height:1.2; margin-bottom:0.8rem;
  background:linear-gradient(135deg,#f1f5f9 0%,#818cf8 50%,#14b8a6 100%);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
}
.hero p { color:var(--text-secondary); font-size:1rem; max-width:500px; margin:0 auto; }

/* ── Upload Card ── */
.upload-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  padding:2rem; margin-bottom:1.5rem;
  box-shadow:var(--shadow-md);
  position:relative; overflow:hidden;
}
.upload-card::before {
  content:''; position:absolute;
  top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg,transparent,rgba(99,102,241,0.4),transparent);
}

/* ── Upload Zone ── */
.upload-zone {
  border:2px dashed rgba(99,102,241,0.25);
  border-radius:var(--radius-lg);
  padding:3rem 2rem;
  text-align:center; cursor:pointer;
  transition:var(--transition);
  background:rgba(99,102,241,0.02);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color:var(--accent);
  background:rgba(99,102,241,0.06);
}
.upload-icon { font-size:3rem; margin-bottom:1rem; opacity:0.6; }
.upload-title { font-size:1.1rem; font-weight:700; margin-bottom:0.5rem; }
.upload-sub { color:var(--text-muted); font-size:0.85rem; margin-bottom:1.5rem; }
.browse-btn {
  padding:10px 28px; border-radius:var(--radius-md);
  background:rgba(99,102,241,0.12);
  border:1px solid rgba(99,102,241,0.3);
  color:var(--accent-light); font-size:0.875rem;
  font-weight:600; cursor:pointer; transition:var(--transition);
}
.browse-btn:hover { background:rgba(99,102,241,0.2); }

/* ── Preview Zone ── */
.preview-zone {
  display:flex; align-items:center; gap:1.5rem;
  padding:1.2rem; border-radius:var(--radius-lg);
  background:var(--bg-section); border:1px solid var(--border);
  margin-bottom:1.2rem;
}
.preview-zone img {
  width:100px; height:100px; object-fit:cover;
  border-radius:var(--radius-md); border:1px solid var(--border);
}
.preview-info { flex:1; }
.preview-name { font-weight:600; font-size:0.9rem; margin-bottom:4px; }
.preview-size { color:var(--text-muted); font-size:0.8rem; margin-bottom:0.8rem; }
.change-btn {
  padding:5px 14px; border-radius:8px;
  background:rgba(244,63,94,0.1);
  border:1px solid rgba(244,63,94,0.25);
  color:var(--accent-rose); font-size:0.78rem;
  font-weight:600; cursor:pointer; transition:var(--transition);
}
.change-btn:hover { background:rgba(244,63,94,0.18); }

/* ── Analyse Button ── */
.analyse-btn {
  width:100%; padding:15px 28px;
  background:linear-gradient(135deg,#4f46e5 0%,#6366f1 50%,#818cf8 100%);
  border:none; border-radius:var(--radius-md);
  color:#fff; font-size:1rem; font-weight:700;
  font-family:'Space Grotesk',sans-serif;
  cursor:pointer; display:flex; align-items:center;
  justify-content:center; gap:10px;
  transition:var(--transition);
  box-shadow:0 4px 24px rgba(99,102,241,0.4);
}
.analyse-btn:hover:not(:disabled) {
  transform:translateY(-2px);
  box-shadow:0 8px 32px rgba(99,102,241,0.5);
}
.analyse-btn:disabled { opacity:0.55; cursor:not-allowed; transform:none; }

.spinner {
  display:none; width:18px; height:18px;
  border:2.5px solid rgba(255,255,255,0.25);
  border-top-color:#fff; border-radius:50%;
  animation:spin 0.65s linear infinite;
}
@keyframes spin { to{transform:rotate(360deg);} }

.loading-hint {
  display:none; text-align:center;
  color:var(--text-muted); font-size:0.8rem;
  margin-top:0.9rem; padding:10px;
  background:rgba(99,102,241,0.05);
  border:1px solid rgba(99,102,241,0.1);
  border-radius:var(--radius-md);
}

/* ── Error Box ── */
.error-box {
  display:none; padding:1rem 1.3rem;
  background:rgba(244,63,94,0.07);
  border:1px solid rgba(244,63,94,0.2);
  border-radius:var(--radius-md);
  color:#fb7185; font-size:0.9rem;
  margin-bottom:1.2rem;
}

/* ── Results Section ── */
.results-section { display:none; margin-top:2rem; }
.results-header {
  display:flex; align-items:center;
  justify-content:space-between; margin-bottom:1.5rem;
  padding-bottom:1rem; border-bottom:1px solid var(--border);
}
.results-header h2 {
  font-family:'Space Grotesk',sans-serif;
  font-size:1.3rem; font-weight:700;
}
.overall-score {
  padding:6px 18px; border-radius:50px;
  background:rgba(99,102,241,0.1);
  border:1px solid rgba(99,102,241,0.25);
  color:var(--accent-light); font-size:0.85rem;
  font-weight:700;
}

/* ── Score Grid ── */
.score-grid {
  display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:1rem; margin-bottom:1.2rem;
}

.score-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:1.3rem 1.4rem;
  transition:var(--transition);
}
.score-card:hover { border-color:rgba(99,102,241,0.2); }
.score-card-header {
  display:flex; align-items:center;
  justify-content:space-between; margin-bottom:0.8rem;
}
.score-card-title {
  display:flex; align-items:center; gap:8px;
  font-size:0.78rem; font-weight:800;
  text-transform:uppercase; letter-spacing:0.8px;
  color:var(--text-secondary);
}
.score-icon {
  width:28px; height:28px; border-radius:8px;
  display:flex; align-items:center;
  justify-content:center; font-size:0.85rem;
}
.score-badge {
  padding:3px 10px; border-radius:50px;
  font-size:0.78rem; font-weight:800;
  background:rgba(99,102,241,0.12);
  border:1px solid rgba(99,102,241,0.2);
  color:var(--accent-light);
}
.score-analysis {
  font-size:0.845rem; color:var(--text-secondary);
  line-height:1.6; margin-bottom:0.8rem;
}
.score-improvements { list-style:none; }
.score-improvements li {
  font-size:0.82rem; color:var(--text-primary);
  padding:4px 0;
  border-bottom:1px solid rgba(255,255,255,0.04);
  display:flex; gap:8px; align-items:baseline;
}
.score-improvements li::before {
  content:'→'; color:var(--accent);
  font-weight:700; flex-shrink:0;
}
.score-improvements li:last-child { border-bottom:none; }

/* ── Two Column ── */
.two-col { display:grid; grid-template-columns:1fr 1fr; gap:1rem; margin-bottom:1rem; }
@media(max-width:640px) { .two-col{grid-template-columns:1fr;} }

.info-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:1.3rem;
}
.green-card { border-color:rgba(16,185,129,0.15); }
.red-card   { border-color:rgba(244,63,94,0.15);  }

.info-title {
  font-size:0.78rem; font-weight:800;
  text-transform:uppercase; letter-spacing:0.8px;
  margin-bottom:0.9rem; display:flex;
  align-items:center; gap:7px;
}
.info-list { list-style:none; }
.info-list li {
  font-size:0.845rem; padding:5px 0;
  border-bottom:1px solid rgba(255,255,255,0.04);
  display:flex; gap:8px; align-items:baseline;
  color:var(--text-primary); line-height:1.5;
}
.info-list li:last-child { border-bottom:none; }
.green-list li::before { content:'✓'; color:var(--accent-green); font-weight:700; flex-shrink:0; }
.red-list   li::before { content:'!'; color:var(--accent-rose);  font-weight:700; flex-shrink:0; }

/* ── Suggestions Card ── */
.suggestions-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:1.5rem;
}
.suggestions-list { list-style:none; }
.suggestions-list li {
  font-size:0.875rem; padding:7px 0;
  border-bottom:1px solid rgba(255,255,255,0.04);
  display:flex; gap:10px; align-items:baseline;
  color:var(--text-primary); line-height:1.6;
}
.suggestions-list li:last-child { border-bottom:none; }
.suggestions-list li::before {
  content:'💡'; flex-shrink:0; font-size:0.85rem;
}

/* ── Empty State ── */
.empty-state { text-align:center; padding:4rem 2rem; color:var(--text-muted); }
.empty-icon  { font-size:3rem; margin-bottom:1rem; opacity:0.3; display:block; }
.empty-state p { font-size:1rem; }

/* ── History ── */
.history-grid { display:flex; flex-direction:column; gap:10px; margin-top:1.5rem; }
.history-item {
  display:flex; align-items:center; gap:1.2rem;
  padding:1rem 1.5rem;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); text-decoration:none;
  color:var(--text-primary); transition:var(--transition);
}
.history-item:hover {
  border-color:rgba(99,102,241,0.25);
  transform:translateX(4px);
}
.history-thumb {
  width:64px; height:64px; border-radius:var(--radius-md);
  overflow:hidden; border:1px solid var(--border); flex-shrink:0;
  background:var(--bg-section); display:flex;
  align-items:center; justify-content:center;
}
.history-thumb img { width:100%; height:100%; object-fit:cover; }
.thumb-placeholder { font-size:1.5rem; opacity:0.4; }
.history-info { flex:1; }
.history-name { font-weight:600; font-size:0.9rem; margin-bottom:4px; }
.history-date { font-size:0.75rem; color:var(--text-muted); margin-bottom:4px; }
.history-score { font-size:0.78rem; color:var(--accent-light); font-weight:600; }
.history-arrow { color:var(--text-muted); font-size:1.1rem; transition:var(--transition); }
.history-item:hover .history-arrow { color:var(--accent-light); }

/* ── History Detail ── */
.back-link {
  display:inline-flex; align-items:center; gap:7px;
  color:var(--text-secondary); text-decoration:none;
  font-size:0.875rem; font-weight:600;
  padding:8px 16px; border-radius:var(--radius-md);
  background:var(--bg-card); border:1px solid var(--border);
  margin-bottom:1.8rem; transition:var(--transition);
}
.back-link:hover { color:var(--text-primary); border-color:rgba(99,102,241,0.3); transform:translateX(-3px); }

.detail-layout { display:grid; grid-template-columns:300px 1fr; gap:1.5rem; }
@media(max-width:768px) { .detail-layout{grid-template-columns:1fr;} }

.detail-image-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); overflow:hidden; height:fit-content;
  position:sticky; top:80px;
}
.detail-image { width:100%; display:block; }
.detail-score-box {
  padding:1.2rem; text-align:center;
  border-top:1px solid var(--border);
}
.score-label { font-size:0.72rem; text-transform:uppercase; letter-spacing:0.8px; color:var(--text-muted); margin-bottom:4px; }
.score-value { font-family:'Space Grotesk',sans-serif; font-size:1rem; font-weight:700; color:var(--accent-light); }

.detail-results { display:flex; flex-direction:column; gap:1rem; }

.analysis-block {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:1.3rem 1.4rem;
  transition:var(--transition);
}
.analysis-block:hover { border-color:rgba(99,102,241,0.2); }
.green-block { border-color:rgba(16,185,129,0.15); }
.red-block   { border-color:rgba(244,63,94,0.15); }

.block-header {
  display:flex; align-items:center; gap:9px;
  margin-bottom:0.8rem;
}
.block-icon {
  width:30px; height:30px; border-radius:8px;
  display:flex; align-items:center; justify-content:center; font-size:0.85rem;
}
.block-title {
  font-size:0.78rem; font-weight:800;
  text-transform:uppercase; letter-spacing:0.8px;
  color:var(--text-secondary); flex:1;
}
.block-score {
  padding:3px 10px; border-radius:50px;
  background:rgba(99,102,241,0.12);
  border:1px solid rgba(99,102,241,0.2);
  color:var(--accent-light); font-size:0.76rem; font-weight:700;
}
.block-analysis {
  font-size:0.875rem; color:var(--text-secondary);
  line-height:1.65; margin-bottom:0.9rem;
}
.block-list { list-style:none; }
.block-list li {
  font-size:0.845rem; padding:5px 0;
  border-bottom:1px solid rgba(255,255,255,0.04);
  display:flex; gap:8px; align-items:baseline;
  color:var(--text-primary); line-height:1.5;
}
.block-list li:last-child { border-bottom:none; }
.block-list li::before { content:'→'; color:var(--accent); font-weight:700; flex-shrink:0; }
.green-list li::before { content:'✓'; color:var(--accent-green); }
.red-list   li::before { content:'!'; color:var(--accent-rose); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width:5px; }
::-webkit-scrollbar-track { background:var(--bg-primary); }
::-webkit-scrollbar-thumb { background:rgba(99,102,241,0.2); border-radius:3px; }

/* ── Responsive ── */
@media(max-width:768px) {
  .header { padding:0 1.2rem; }
  .main   { padding:1.5rem 1rem 3rem; }
  .upload-card { padding:1.5rem; }
  .score-grid  { grid-template-columns:1fr; }
}