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

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

:root {
  --green:   #30d158;
  --green-d: #25a244;
  --blue:    #0a84ff;
  --amber:   #ff9f0a;
  --red:     #ff453a;
  --text:    #1c1c1e;
  --muted:   #6c6c70;
  --radius:  20px;
  --glass:   rgba(255,255,255,0.65);
  --glass-border: rgba(255,255,255,0.55);
  --shadow:  0 8px 32px rgba(0,0,0,0.10);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: -apple-system, "SF Pro Display", "SF Pro Text", "Google Sans", "Segoe UI", sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(ellipse at 0% 0%,   rgba(134,239,172,0.55) 0%, transparent 55%),
    radial-gradient(ellipse at 100% 0%,  rgba(147,197,253,0.45) 0%, transparent 55%),
    radial-gradient(ellipse at 100% 100%,rgba(196,181,253,0.40) 0%, transparent 55%),
    radial-gradient(ellipse at 0%   100%,rgba(253,230,138,0.35) 0%, transparent 55%),
    #e8f5ee;
  color: var(--text);
}

/* ===== Header ===== */
header {
  background: rgba(6,78,59,0.82);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.15);
  color: white;
  padding: 2rem 1.5rem;
  text-align: center;
}
.header-inner { max-width: 720px; margin: 0 auto; }
.logo { font-size: 2rem; font-weight: 800; letter-spacing: -0.5px; margin-bottom: .4rem; }
.tagline { opacity: .80; font-size: .95rem; font-weight: 400; }

/* ===== Main ===== */
main { flex: 1; max-width: 900px; margin: 0 auto; width: 100%; padding: 2rem 1.25rem; }

/* ===== Glass panel mixin ===== */
.upload-card,
.location-section,
.prefs-section,
.apikey-section,
.info-card,
.meal-card,
.tips-section,
.loading-inner {
  background: var(--glass);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,0.8);
}

/* ===== Upload Grid ===== */
.upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 560px) { .upload-grid { grid-template-columns: 1fr; } }

.upload-card {
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
  border: 2px dashed rgba(255,255,255,0.6);
}
.upload-card:has(.preview-wrap:not([hidden])) {
  border-style: solid;
  border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(48,209,88,0.15), var(--shadow);
}

.upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.75rem 1.5rem;
  min-height: 210px;
  gap: .5rem;
  transition: background .15s;
}
.upload-zone.drag-over { background: rgba(48,209,88,0.12); }

.upload-icon  { font-size: 2.8rem; }
.upload-label { font-weight: 700; font-size: 1rem; }
.drag-hint    { color: var(--muted); font-size: .78rem; margin-top: .2rem; }

.upload-actions {
  display: flex;
  gap: .6rem;
  margin-top: .5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.pick-btn {
  padding: .55rem 1.1rem;
  border-radius: 50px;
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.5);
  transition: all .18s;
  white-space: nowrap;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.pick-library {
  background: rgba(10,132,255,0.12);
  color: #0a84ff;
}
.pick-library:hover { background: rgba(10,132,255,0.22); }

.pick-camera {
  background: rgba(48,209,88,0.12);
  color: #1a7a35;
}
.pick-camera:hover { background: rgba(48,209,88,0.22); }

.preview-wrap { position: relative; }
.preview-wrap img { width: 100%; height: 200px; object-fit: cover; display: block; }
.remove-btn {
  position: absolute;
  top: .5rem; right: .5rem;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: white;
  border: none;
  border-radius: 8px;
  padding: .25rem .6rem;
  font-size: .8rem;
  cursor: pointer;
  transition: background .15s;
}
.remove-btn:hover { background: rgba(0,0,0,0.7); }

/* ===== Submit Area ===== */
.submit-area { text-align: center; margin-bottom: 1rem; }

.btn-analyze {
  background: linear-gradient(135deg, #30d158, #25a244);
  color: white;
  border: none;
  padding: .95rem 2.8rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  transition: all .2s;
  box-shadow: 0 4px 20px rgba(48,209,88,0.40), inset 0 1px 0 rgba(255,255,255,0.3);
  font-family: inherit;
  letter-spacing: .01em;
}
.btn-analyze:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(48,209,88,0.50), inset 0 1px 0 rgba(255,255,255,0.3);
}
.btn-analyze:disabled { opacity: .40; cursor: not-allowed; box-shadow: none; }

.privacy-note { margin-top: .75rem; color: var(--muted); font-size: .8rem; }

/* ===== Loading ===== */
.loading-section[hidden] { display: none !important; }
.loading-section {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
}
.loading-inner {
  text-align: center;
  max-width: 480px;
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
}
.spinner {
  width: 56px; height: 56px;
  border: 4px solid rgba(48,209,88,0.2);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin .9s linear infinite;
  margin: 0 auto 1.5rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-inner h2 { font-size: 1.4rem; margin-bottom: .5rem; }
.loading-inner p  { color: var(--muted); margin-bottom: 1.5rem; font-size: .95rem; }

.loading-steps { display: flex; flex-direction: column; gap: .5rem; }
.step {
  background: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 12px;
  padding: .6rem 1rem;
  font-size: .9rem;
  color: var(--muted);
  transition: all .4s;
}
.step.active {
  background: rgba(48,209,88,0.15);
  border-color: rgba(48,209,88,0.4);
  color: #1a7a35;
  font-weight: 600;
}

/* ===== Results ===== */
.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
}
.results-header h2 { font-size: 1.5rem; font-weight: 700; }

.btn-reset {
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  padding: .5rem 1.1rem;
  border-radius: 50px;
  cursor: pointer;
  font-size: .9rem;
  font-family: inherit;
  font-weight: 500;
  transition: all .2s;
  white-space: nowrap;
  box-shadow: var(--shadow);
}
.btn-reset:hover { background: rgba(255,255,255,0.85); transform: translateY(-1px); }

/* Info Cards */
.info-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.75rem;
}
@media (max-width: 560px) { .info-cards { grid-template-columns: 1fr; } }

.info-card {
  display: flex;
  gap: .75rem;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}
.info-icon { font-size: 1.8rem; flex-shrink: 0; }
.info-body strong { display: block; margin-bottom: .25rem; font-size: .9rem; font-weight: 700; }
.info-body p { font-size: .88rem; color: var(--muted); }

/* Meal Cards */
.meals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.meal-card {
  border-radius: var(--radius);
  padding: 1.4rem;
  position: relative;
  animation: fadeUp .5s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.meal-number {
  position: absolute;
  top: -12px; left: 1.2rem;
  background: linear-gradient(135deg, #30d158, #25a244);
  color: white;
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .85rem;
  box-shadow: 0 4px 12px rgba(48,209,88,0.45);
}
.meal-name { font-size: 1.15rem; font-weight: 700; margin-bottom: .4rem; padding-top: .2rem; }
.meal-desc { color: var(--muted); font-size: .88rem; margin-bottom: .85rem; line-height: 1.5; }

.meal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1rem;
}
.badge {
  padding: .28rem .7rem;
  border-radius: 20px;
  font-size: .78rem;
  font-weight: 600;
  white-space: nowrap;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.5);
}
.badge-time { background: rgba(10,132,255,0.12);  color: #0055cc; }
.badge-fit  { background: rgba(48,209,88,0.12);   color: #1a7a35; }
.badge-cal  { background: rgba(255,159,10,0.12);  color: #995500; }

/* Nutrition Grid */
.nutrition-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: .5rem;
  margin-bottom: 1rem;
}
.nut-cell {
  border-radius: 12px;
  padding: .6rem .4rem;
  text-align: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.5);
}
.nut-protein { background: rgba(255,69,58,0.08); }
.nut-carbs   { background: rgba(255,159,10,0.08); }
.nut-fat     { background: rgba(48,209,88,0.08); }

.nut-icon  { font-size: 1.1rem; margin-bottom: .2rem; }
.nut-label { font-size: .7rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.nut-val   { font-size: .78rem; color: var(--text); margin-top: .15rem; line-height: 1.3; }

/* Details */
details { margin-top: .65rem; }
summary {
  cursor: pointer;
  font-size: .88rem;
  font-weight: 600;
  color: var(--blue);
  list-style: none;
  padding: .4rem 0;
  border-top: 1px solid rgba(255,255,255,0.5);
}
summary::-webkit-details-marker { display: none; }
summary::before { content: "▶ "; font-size: .7rem; transition: transform .2s; display: inline-block; }
details[open] summary::before { transform: rotate(90deg); }
details ul { margin: .5rem 0 .25rem 1.2rem; font-size: .86rem; line-height: 1.7; color: var(--muted); }
details p  { font-size: .86rem; line-height: 1.6; color: var(--muted); margin-top: .5rem; white-space: pre-line; }

/* Tips */
.tips-section {
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-top: .5rem;
  background: rgba(255,214,10,0.12) !important;
  border: 1px solid rgba(255,214,10,0.35) !important;
}
.tips-section h3 { margin-bottom: .75rem; font-size: 1rem; font-weight: 700; }
.tips-section ul { margin-left: 1.2rem; }
.tips-section li { font-size: .9rem; line-height: 1.65; color: var(--text); margin-bottom: .25rem; }

/* Error Banner */
.error-banner[hidden] { display: none !important; }
.error-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255,69,58,0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255,69,58,0.3);
  color: #c0392b;
  border-radius: 16px;
  padding: .85rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: .9rem;
  font-weight: 500;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  z-index: 100;
}
.error-banner button {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 1.1rem;
  flex-shrink: 0;
  opacity: .7;
}
.error-banner button:hover { opacity: 1; }

/* ===== Location / Cuisine Section ===== */
.location-section {
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  margin-bottom: 1rem;
}
.location-desc { font-size: .88rem; color: var(--muted); margin-bottom: 1.1rem; line-height: 1.5; }
.location-row  { display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; }

.btn-locate {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .6rem 1.2rem;
  border-radius: 50px;
  border: 1px solid rgba(10,132,255,0.3);
  background: rgba(10,132,255,0.10);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--blue);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .18s;
  white-space: nowrap;
  font-family: inherit;
}
.btn-locate:hover:not(:disabled) { background: rgba(10,132,255,0.18); }
.btn-locate:disabled { opacity: .55; cursor: wait; }

.location-or { color: var(--muted); font-size: .85rem; flex-shrink: 0; }

.country-wrap { flex: 1; min-width: 180px; }
.country-wrap select {
  width: 100%;
  padding: .6rem .85rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.5);
  font-size: .9rem;
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text);
  outline: none;
  cursor: pointer;
  transition: border-color .2s;
  appearance: auto;
  font-family: inherit;
}
.country-wrap select:focus { border-color: var(--blue); }

/* Country badge */
.country-badge[hidden] { display: none !important; }
.country-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: .85rem;
  background: rgba(48,209,88,0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(48,209,88,0.35);
  color: #1a7a35;
  border-radius: 50px;
  padding: .35rem .9rem;
  font-size: .88rem;
  font-weight: 600;
}
.clear-country {
  background: none; border: none; color: #1a7a35;
  cursor: pointer; font-size: .85rem; line-height: 1; padding: 0; opacity: .7;
}
.clear-country:hover { opacity: 1; }

/* ===== Preferences Section ===== */
.prefs-section {
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  margin-bottom: 1.25rem;
}
.prefs-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.optional-tag {
  font-size: .72rem;
  font-weight: 500;
  color: var(--muted);
  background: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 20px;
  padding: .1rem .5rem;
}
.prefs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 700px) { .prefs-grid { grid-template-columns: 1fr; } }

.pref-field { display: flex; flex-direction: column; gap: .35rem; }
.pref-field label { font-size: .88rem; font-weight: 600; display: flex; align-items: center; gap: .3rem; }
.pref-icon { font-size: 1rem; }
.pref-field input {
  padding: .55rem .85rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.5);
  font-size: .9rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text);
  font-family: inherit;
}
.pref-field input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(10,132,255,0.12); background: rgba(255,255,255,0.8); }
.pref-allergy input:focus { border-color: var(--red);   box-shadow: 0 0 0 3px rgba(255,69,58,0.12); }
.pref-like    input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(48,209,88,0.12); }
.pref-dislike input:focus { border-color: var(--amber); box-shadow: 0 0 0 3px rgba(255,159,10,0.12); }
.pref-hint { font-size: .75rem; color: var(--muted); }

/* Preference tags in results */
.pref-tag { display: inline-block; font-size: .75rem; font-weight: 600; border-radius: 6px; padding: .1rem .4rem; margin-right: .3rem; }
.pref-tag-allergy { background: rgba(255,69,58,0.12);  color: #c0392b; }
.pref-tag-like    { background: rgba(48,209,88,0.12);  color: #1a7a35; }
.pref-tag-dislike { background: rgba(255,159,10,0.12); color: #995500; }

.info-card-prefs { grid-column: 1 / -1; }
.info-card-prefs .info-body p { margin-top: .3rem; display: flex; align-items: baseline; gap: .25rem; }

/* ===== API Key Section ===== */
.apikey-section {
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  margin-bottom: 1.25rem;
}
.apikey-row {
  display: flex;
  gap: .75rem;
  margin-top: .75rem;
}
.apikey-row input {
  flex: 1;
  padding: .6rem .9rem;
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 12px;
  font-size: .95rem;
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text);
  outline: none;
  font-family: inherit;
  transition: border-color .2s;
}
.apikey-row input:focus { border-color: var(--blue); background: rgba(255,255,255,0.8); }
.btn-save-key {
  background: linear-gradient(135deg, #30d158, #25a244);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: .6rem 1.3rem;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  box-shadow: 0 4px 12px rgba(48,209,88,0.35);
  transition: all .2s;
}
.btn-save-key:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(48,209,88,0.45); }
.apikey-status { margin-top: .5rem; font-size: .88rem; font-weight: 500; }
.apikey-ok  { color: #1a7a35; }
.apikey-err { color: #c0392b; }

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 1.5rem;
  font-size: .82rem;
  color: var(--muted);
  background: rgba(255,255,255,0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255,255,255,0.5);
}