/* =========================================================
   Gallery — design.md light theme (ElevenLabs editorial)
   Off-white canvas #f5f5f5 · warm ink #0c0a09 · ink-pill CTAs
   Font: Inter (display 300 / body 400) · pill buttons · xl cards
   Pastel gradient orbs = pure atmosphere, decoration only
   ========================================================= */

:root {
  /* Colors */
  --canvas: #f5f5f5;
  --canvas-soft: #fafafa;
  --surface: #ffffff;
  --surface-strong: #f0efed;
  --ink: #0c0a09;
  --primary: #292524;
  --primary-active: #0c0a09;
  --body: #4e4e4e;
  --body-strong: #292524;
  --muted: #777169;
  --muted-soft: #a8a29e;
  --on-primary: #ffffff;
  --hairline: #e7e5e4;
  --hairline-soft: #f0efed;
  --hairline-strong: #d6d3d1;
  --success: #16a34a;
  --error: #dc2626;

  /* Gradient orbs (atmosphere only) */
  --grad-mint: #a7e5d3;
  --grad-peach: #f4c5a8;
  --grad-lavender: #c8b8e0;
  --grad-sky: #a8c8e8;
  --grad-rose: #e8b8c4;

  /* Shape */
  --radius-md: 8px;
  --radius-xl: 16px;
  --radius-xxl: 24px;
  --radius-pill: 9999px;

  /* Elevation */
  --shadow-card: 0 1px 2px rgba(12, 10, 9, 0.04);
  --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.04);

  /* Layout + type */
  --max: 1200px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.16px;
  color: var(--body);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--body-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- Container ---------- */

.page {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

/* ---------- Typography ---------- */

.display {
  font-weight: 300;
  letter-spacing: -0.96px;
  color: var(--ink);
  line-height: 1.08;
  margin: 0 0 0.5rem;
}

h1.display {
  font-size: clamp(2rem, 5vw, 3rem);
}

.display-sm {
  font-weight: 300;
  letter-spacing: -0.36px;
  color: var(--ink);
  line-height: 1.17;
  margin: 0;
  font-size: 1.5rem;
}

.lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-size: 1rem;
}

.caption-upper {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.96px;
  text-transform: uppercase;
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

/* ---------- Top navigation ---------- */

.site-header {
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header__inner {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  color: var(--ink);
  font-weight: 300;
  font-size: 1.35rem;
  letter-spacing: -0.32px;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
  color: var(--ink);
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.nav a:hover {
  color: var(--ink);
  background: var(--surface-strong);
  text-decoration: none;
}

.nav a.is-active {
  color: var(--ink);
  background: var(--surface);
  box-shadow: 0 0 0 1px var(--hairline);
}

/* ---------- Buttons (ink pill is the only CTA color) ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1;
  height: 40px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}

.btn-primary:hover {
  background: var(--primary-active);
  color: var(--on-primary);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--hairline-strong);
}

.btn-outline:hover {
  background: var(--surface);
  color: var(--ink);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
}

.btn-ghost:hover {
  background: var(--surface-strong);
  color: var(--ink);
}

.btn-sm {
  padding: 7px 14px;
  height: 32px;
  font-size: 14px;
}

.btn-danger {
  background: var(--error);
  color: #fff;
}

.btn-danger:hover {
  background: #b91c1c;
  color: #fff;
}

.btn-danger-soft {
  background: transparent;
  color: var(--error);
  border-color: transparent;
}

.btn-danger-soft:hover {
  background: #fef2f2;
  color: var(--error);
}

.btn i,
.btn svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

/* ---------- Cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

.card + .card {
  margin-top: 1rem;
}

.card__soft {
  background: var(--canvas-soft);
}

/* ---------- Forms (rounded.md inputs, focus = 2px ink) ---------- */

.form-stack {
  display: grid;
  gap: 1rem;
  max-width: 420px;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  margin-bottom: 0.4rem;
  color: var(--body-strong);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="file"],
select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  letter-spacing: 0.16px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus {
  outline: none;
  border: 2px solid var(--ink);
  padding: 11px 15px;
}

.field-hint {
  display: block;
  margin-top: 0.35rem;
  font-size: 13px;
  color: var(--muted-soft);
  letter-spacing: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

/* ---------- Alerts ---------- */

.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-size: 14px;
  letter-spacing: 0;
}

.alert i,
.alert svg {
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.alert-error {
  background: #fef2f2;
  color: var(--error);
  border: 1px solid #fecaca;
}

.alert-success {
  background: #f0fdf4;
  color: var(--success);
  border: 1px solid #bbf7d0;
}

/* ---------- Toolbar (search + sort) ---------- */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.search-field {
  position: relative;
  flex: 1 1 240px;
  min-width: 200px;
  max-width: 380px;
}

.search-field input {
  padding-left: 42px;
}

.sort-field {
  flex: 0 1 190px;
  min-width: 150px;
}

.toolbar-spacer {
  flex: 1 1 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--surface-strong);
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.96px;
  text-transform: uppercase;
}

/* ---------- Page header ---------- */

.page-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.75rem;
}

.page-title .lead {
  margin-bottom: 0;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 2rem 0 1rem;
}

/* ---------- Upload card ---------- */

.upload-card {
  background: var(--canvas-soft);
  border: 1px dashed var(--hairline-strong);
  border-radius: var(--radius-xxl);
  padding: 24px;
  margin-bottom: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
}

.upload-card .field {
  flex: 1 1 300px;
}

.upload-card label {
  margin-bottom: 0.5rem;
}

.upload-card input[type="file"] {
  background: var(--surface);
}

.upload-card .btn {
  flex-shrink: 0;
}

/* ---------- Image grid ---------- */

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.image-card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s, transform 0.15s;
}

.image-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.image-card__media {
  aspect-ratio: 1;
  background: var(--surface-strong);
  display: block;
  overflow: hidden;
}

.image-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-card__body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.image-card__title {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.image-card__meta {
  font-size: 13px;
  color: var(--muted-soft);
  letter-spacing: 0;
}

.image-card__actions {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.image-card__actions .btn {
  flex: 1;
}

.fav-btn.is-active {
  background: var(--surface-strong);
  color: var(--error);
}

.fav-btn.is-active:hover {
  background: #fef2f2;
  color: var(--error);
}

/* ---------- Empty state ---------- */

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--muted);
}

.empty-state .display-sm {
  margin-bottom: 0.5rem;
}

.empty-state p {
  margin: 0 0 1.25rem;
}

/* ---------- Auth pages ---------- */

.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  position: relative;
  overflow: hidden;
}

.auth-wrap {
  width: min(100% - 2rem, 440px);
  position: relative;
  z-index: 1;
}

.brand--center {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.auth-card {
  padding: 40px 36px;
  border-radius: var(--radius-xxl);
}

.auth-card .display {
  margin-bottom: 0.35rem;
}

.auth-switch {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0;
}

.link {
  color: var(--ink);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.link:hover {
  color: var(--primary);
}

/* ---------- Gradient orbs (atmosphere only) ---------- */

.orb {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

.orb--mint { background: radial-gradient(circle, var(--grad-mint) 0%, transparent 70%); }
.orb--peach { background: radial-gradient(circle, var(--grad-peach) 0%, transparent 70%); }
.orb--lavender { background: radial-gradient(circle, var(--grad-lavender) 0%, transparent 70%); }
.orb--sky { background: radial-gradient(circle, var(--grad-sky) 0%, transparent 70%); }
.orb--rose { background: radial-gradient(circle, var(--grad-rose) 0%, transparent 70%); }

.orb--tl { top: -120px; left: -120px; }
.orb--tr { top: -120px; right: -120px; }
.orb--bl { bottom: -120px; left: -120px; }
.orb--br { bottom: -120px; right: -120px; }

/* ---------- Utility ---------- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 1.5rem;
  letter-spacing: 0;
}

.back-link:hover {
  color: var(--ink);
}

.current-file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.6rem;
  padding: 0.55rem 0.7rem;
  background: var(--surface-strong);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--muted);
}

.preview {
  margin: 0 0 1.25rem;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--hairline);
  max-width: 360px;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .page {
    width: min(100% - 1.25rem, var(--max));
    padding-top: 1.5rem;
  }

  .site-header__inner {
    width: min(100% - 1.25rem, var(--max));
  }

  .nav {
    gap: 0;
  }

  .nav a span {
    display: none;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-field,
  .sort-field {
    max-width: none;
    width: 100%;
  }

  .upload-card {
    flex-direction: column;
    align-items: stretch;
  }

  .image-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .auth-card {
    padding: 32px 24px;
  }
}

@media (max-width: 400px) {
  .image-grid {
    grid-template-columns: 1fr;
  }
}