/**
 * 3. ფაილი: style.css
 * ვერსია: 11 (ამოღებულია კამერის სტილები, ოპტიმიზებულია მობილურისთვის)
 */

:root {
  --bg-color: #F5F5F7; 
  --text-primary: #111827; 
  --text-secondary: #6B7280;
  --card-bg: #FFFFFF; 
  --border-color: #E5E7EB;
  --blue-primary: #2563EB; 
  --blue-hover: #1D4ED8; 
  --blue-light: #EFF6FF; 
  --blue-text: #2563EB;
  --green-bg: #F0FDF4; 
  --green-border: #DCFCE7; 
  --green-text: #166534;
  --yellow-bg: #FFFBEB; 
  --yellow-border: #FEF3C7; 
  --yellow-text: #92400E;
  --purple-light: #F3E8FF; 
  --purple-text: #9333EA;
  --red-bg: #FEF2F2; 
  --red-border: #FEE2E2; 
  --red-text: #DC2626;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
}

body.dark-mode {
  --bg-color: #0F172A; 
  --text-primary: #F3F4F6; 
  --text-secondary: #9CA3AF;
  --card-bg: #1E293B; 
  --border-color: #334155;
  --blue-light: rgba(37, 99, 235, 0.15); 
  --blue-text: #60A5FA;
  --green-bg: rgba(22, 101, 52, 0.15); 
  --green-border: rgba(22, 101, 52, 0.4); 
  --green-text: #4ADE80;
  --yellow-bg: rgba(146, 64, 14, 0.15); 
  --yellow-border: rgba(146, 64, 14, 0.4); 
  --yellow-text: #FBBF24;
  --purple-light: rgba(147, 51, 234, 0.15); 
  --purple-text: #C084FC;
  --red-bg: rgba(220, 38, 38, 0.15); 
  --red-border: rgba(220, 38, 38, 0.4); 
  --red-text: #F87171;
}

* { 
  box-sizing: border-box; 
  margin: 0; 
  padding: 0; 
  -webkit-tap-highlight-color: transparent; 
}

body { 
  font-family: var(--font-family); 
  background: var(--bg-color); 
  color: var(--text-primary); 
  min-height: 100vh; 
  transition: background-color 0.3s, color 0.3s;
  overflow-x: hidden;
}

.hidden { display: none !important; }

/* Layout & Containers */
.app-container { 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 1rem; 
  padding-bottom: calc(2rem + var(--safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

@media (min-width: 640px) {
  .app-container { padding: 2rem; }
}

/* Navigation - Mobile Optimized */
.top-nav { 
  display: flex; 
  flex-direction: column; 
  gap: 1rem; 
  margin-bottom: 2rem; 
}

@media (min-width: 768px) {
  .top-nav { flex-direction: row; justify-content: space-between; align-items: center; }
}

.nav-links, .controls { 
  display: flex; 
  gap: 0.25rem; 
  background: var(--card-bg); 
  border: 1px solid var(--border-color); 
  padding: 0.25rem; 
  border-radius: 9999px; 
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.nav-btn, .lang-btn { 
  padding: 0.5rem 0.75rem; 
  border-radius: 9999px; 
  text-decoration: none; 
  color: var(--text-secondary); 
  font-weight: 500; 
  font-size: 0.8rem; 
  background: transparent; 
  border: none; 
  cursor: pointer; 
  transition: 0.2s; 
  white-space: nowrap;
}

@media (min-width: 400px) {
  .nav-btn, .lang-btn { padding: 0.5rem 1rem; font-size: 0.875rem; }
}

.nav-btn.active, .lang-btn.active { 
  background: var(--blue-primary); 
  color: #fff; 
}

/* Header Section */
.main-header {
  text-align: center;
  margin-bottom: 2rem;
}

.icon-wrapper {
  background: var(--blue-light);
  color: var(--blue-primary);
  width: 4rem;
  height: 4rem;
  border-radius: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

/* Buttons */
.btn { 
  display: inline-flex; 
  align-items: center; 
  justify-content: center;
  gap: 0.5rem; 
  padding: 0.875rem 1.5rem; 
  border-radius: 1rem; 
  font-weight: 600; 
  font-size: 1rem; 
  cursor: pointer; 
  transition: 0.2s; 
  border: none; 
  width: 100%;
  touch-action: manipulation;
}

@media (min-width: 640px) {
  .btn { width: auto; border-radius: 9999px; }
}

.btn.primary { 
  background: var(--blue-primary); 
  color: #fff; 
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2); 
}

.btn.secondary { 
  background: var(--card-bg); 
  color: var(--text-primary); 
  border: 1px solid var(--border-color); 
}

.btn.small { 
  padding: 0.5rem 1rem; 
  font-size: 0.875rem; 
}

/* Stages */
.stage-container { 
  background: var(--card-bg); 
  border: 1px solid var(--border-color); 
  border-radius: 1.5rem; 
  padding: 1.25rem; 
  margin-bottom: 1.5rem; 
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); 
}

.upload-area { 
  border: 2px dashed var(--border-color); 
  border-radius: 1.25rem; 
  padding: 3rem 1rem; 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  min-height: 250px; 
  justify-content: center; 
  transition: 0.2s;
  cursor: pointer;
}

.upload-area:hover {
  background: var(--blue-light);
  border-color: var(--blue-primary);
}

.upload-icon-wrapper {
  color: var(--blue-primary);
  margin-bottom: 1rem;
}

.upload-icon-wrapper svg {
  width: 3rem;
  height: 3rem;
}

/* Preview & Crop */
.preview-wrapper, .crop-area { 
  position: relative; 
  width: 100%; 
  aspect-ratio: 4/3;
  margin: 0 auto; 
  border-radius: 1.25rem; 
  overflow: hidden; 
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 640px) {
  .preview-wrapper, .crop-area { max-width: 35rem; }
}

.preview-wrapper img, .crop-area img { 
  width: 100%; 
  height: 100%; 
  object-fit: contain; 
}

.crop-box {
  position: absolute;
  border: 2px solid #fff;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

/* Results */
.result-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--card-bg);
  padding: 1rem;
  border-radius: 1.25rem;
  border: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.result-header img {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.75rem;
  object-cover: cover;
  border: 1px solid var(--border-color);
}

.result-card { 
  background: var(--card-bg); 
  border: 1px solid var(--border-color); 
  border-radius: 1.25rem; 
  padding: 1.25rem; 
  margin-bottom: 1.5rem; 
}

.card-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.icon-box {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.purple .icon-box { background: var(--purple-light); color: var(--purple-text); }
.blue .icon-box { background: var(--blue-light); color: var(--blue-text); }
.green .icon-box { background: var(--green-bg); color: var(--green-text); }
.yellow .icon-box { background: var(--yellow-bg); color: var(--yellow-text); }

.step-item { 
  display: flex; 
  gap: 1rem; 
  padding: 1.25rem; 
  border-radius: 1rem; 
  border: 1px solid var(--border-color); 
  margin-bottom: 0.75rem; 
  background: var(--bg-color); 
}

.step-num { 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  width: 2rem; 
  height: 2rem; 
  border-radius: 50%; 
  background: var(--card-bg); 
  color: var(--blue-primary); 
  font-weight: 800; 
  flex-shrink: 0; 
}

.grid-2 { 
  display: grid; 
  grid-template-columns: 1fr; 
  gap: 1.25rem; 
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

/* Footer */
.main-footer {
  margin-top: auto;
  padding: 2.5rem 1rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  border-top: 1px solid var(--border-color);
}

.main-footer .mt-1 { margin-top: 0.25rem; }
.main-footer .text-xs { font-size: 0.75rem; opacity: 0.8; }

/* KaTeX Formatting */
.katex-display {
  margin: 1rem 0;
  padding-bottom: 0.5rem;
  overflow-x: auto;
  overflow-y: hidden;
}

/* Animations */
@keyframes spin { 100% { transform: rotate(360deg); } }
.spinner { animation: spin 1s linear infinite; }