/* Catppuccin Mocha */
:root {
  --crust:    #11111b;
  --mantle:   #181825;
  --base:     #1e1e2e;
  --surface0: #313244;
  --surface1: #45475a;
  --surface2: #585b70;
  --overlay0: #6c7086;
  --overlay1: #7f849c;
  --overlay2: #9399b2;
  --subtext0: #a6adc8;
  --subtext1: #bac2de;
  --text:     #cdd6f4;
  --lavender: #b4befe;
  --blue:     #89b4fa;
  --sapphire: #74c7ec;
  --sky:      #89dceb;
  --teal:     #94e2d5;
  --green:    #a6e3a1;
  --yellow:   #f9e2af;
  --peach:    #fab387;
  --maroon:   #eba0ac;
  --red:      #f38ba8;
  --mauve:    #cba6f7;
  --pink:     #f5c2e7;
  --flamingo: #f2cdcd;
  --rosewater:#f5e0dc;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--base);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ---- Header ---- */
.app-header {
  padding: 16px 20px;
  background-color: var(--mantle);
  border-bottom: 1px solid var(--surface0);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 640px;
  margin: 0 auto;
}

.logo-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.app-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--lavender);
  letter-spacing: -0.01em;
}

/* ---- Main layout ---- */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 16px;
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
}

/* ---- Upload card ---- */
.upload-card {
  background: var(--mantle);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--surface0);
}

/* ---- Upload zone ---- */
.upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  border: 2px dashed var(--surface2);
  border-radius: var(--radius-sm);
  padding: 36px 20px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  color: var(--subtext0);
}

.upload-zone:hover,
.upload-zone:focus-visible {
  border-color: var(--mauve);
  border-style: solid;
  background-color: rgba(203, 166, 247, 0.06);
  color: var(--text);
  outline: none;
}

.upload-zone.has-image {
  padding: 12px 20px;
  flex-direction: row;
  justify-content: center;
  border-style: solid;
  border-color: var(--mauve);
}

.upload-zone.has-image .upload-icon,
.upload-zone.has-image .upload-hint {
  display: none;
}

.upload-icon {
  color: var(--mauve);
}

.upload-text {
  font-size: 0.95rem;
  font-weight: 500;
  color: inherit;
}

.upload-hint {
  font-size: 0.8rem;
  color: var(--overlay1);
}

/* ---- Preview ---- */
.preview-container {
  position: relative;
  margin-top: 16px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--crust);
  border: 1px solid var(--surface1);
}

.preview-image {
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.btn-clear {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(17, 17, 27, 0.75);
  border: 1px solid var(--surface1);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--subtext1);
  transition: background-color 0.2s, color 0.2s;
}

.btn-clear:hover {
  background: var(--surface0);
  color: var(--red);
}

/* ---- Analyze button ---- */
.btn-analyze {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  margin-top: 16px;
  padding: 14px 24px;
  background: var(--mauve);
  color: var(--crust);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.2s, opacity 0.2s, transform 0.1s;
}

.btn-analyze:hover:not(:disabled) {
  background: var(--lavender);
  transform: translateY(-1px);
}

.btn-analyze:active:not(:disabled) {
  transform: translateY(0);
}

.btn-analyze:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ---- Spinner (HTMX indicator) ---- */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(30, 30, 46, 0.4);
  border-top-color: var(--crust);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

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

/* HTMX indicator visibility */
.htmx-indicator {
  opacity: 0;
  transition: opacity 150ms ease;
}

.htmx-request .htmx-indicator {
  opacity: 1;
}

.htmx-request .btn-text {
  opacity: 0.6;
}

/* ---- Result card ---- */
.result-card {
  background: var(--mantle);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--surface0);
  border-left: 3px solid var(--mauve);
}

.result-card:empty {
  display: none;
}

.result-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 12px;
  align-items: baseline;
}

.result-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--overlay2);
  padding-top: 2px;
}

.result-value {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.6;
}

.result-description {
  color: var(--subtext1);
  white-space: pre-wrap;
}

/* Badges de confiance */
.confidence-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.confidence-high {
  background-color: rgba(166, 227, 161, 0.15);
  color: var(--green);
  border: 1px solid rgba(166, 227, 161, 0.3);
}

.confidence-medium {
  background-color: rgba(249, 226, 175, 0.15);
  color: var(--yellow);
  border: 1px solid rgba(249, 226, 175, 0.3);
}

.confidence-low {
  background-color: rgba(243, 139, 168, 0.15);
  color: var(--red);
  border: 1px solid rgba(243, 139, 168, 0.3);
}

.result-error {
  color: var(--red);
  font-size: 0.9rem;
  line-height: 1.6;
  border-left: 3px solid var(--red);
  padding-left: 12px;
}

/* ---- Accessibility ---- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Desktop breakpoint ---- */
@media (min-width: 600px) {
  .app-main {
    padding: 40px 24px;
  }

  .upload-card,
  .result-card {
    padding: 28px;
  }

  .upload-zone {
    padding: 48px 32px;
  }

  .preview-image {
    max-height: 400px;
  }
}