/* ============================================================
   main.css — Design system, variables, global resets
   davide._.ph | Mobile-first photography gallery
   ============================================================ */

/* ── CSS Custom Properties ───────────────────────────────────── */
:root {
  /* Palette — light theme */
  --bg:           #f5f4f2;
  --surface:      #ffffff;
  --surface2:     #f0eeeb;
  --surface3:     #e8e5e0;
  --border:       rgba(0,0,0,0.08);
  --border2:      rgba(0,0,0,0.14);

  /* Gold */
  --gold:         #b8913d;
  --gold-hi:      #c9a96e;
  --gold-soft:    rgba(184,145,61,0.08);
  --gold-border:  rgba(184,145,61,0.30);

  /* Text */
  --t1:  #1a1814;
  --t2:  #3d3a34;
  --t3:  #706d66;
  --t4:  #a09d96;

  /* Aliases (compat) */
  --s1: var(--surface);
  --s2: var(--surface2);
  --s3: var(--surface3);
  --b1: var(--border);
  --b2: var(--border2);

  /* Legacy aliases */
  --white:   #ffffff;
  --r20:     20px;
  --sh4:     0 16px 48px rgba(0,0,0,0.15);
  --sh-card: 0 2px 8px rgba(0,0,0,0.08);
  --sh0:     0 1px 2px rgba(0,0,0,0.06);
  --sh-lift: 0 8px 24px rgba(0,0,0,0.12);
  --sh-gold: 0 4px 16px rgba(184,145,61,0.18);
  --red:     #d94444;
  --red-bg:  rgba(217,68,68,0.08);
  --green:   #3a9e5c;
  --gold-bg: rgba(184,145,61,0.06);
  --gold-dk: #96721e;

  /* Typography */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  /* Radius */
  --r4:  4px;
  --r8:  8px;
  --r12: 12px;
  --r16: 16px;
  --r24: 24px;
  --r99: 999px;

  /* Shadows */
  --sh1:      0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.08);
  --sh2:      0 4px 12px rgba(0,0,0,.10);
  --sh3:      0 8px 32px rgba(0,0,0,.12);
  --sh-in:    inset 0 1px 2px rgba(0,0,0,.06);
  --sh-focus: 0 0 0 3px rgba(184,145,61,.20);

  /* Motion */
  --fast: 120ms ease;
  --mid:  200ms ease;
  --slow: 350ms cubic-bezier(.4,0,.2,1);
  --ease: cubic-bezier(.4,0,.2,1);

  /* Layout */
  --sidebar-w: 220px;
  --header-h:  56px;
  --max-content: 1400px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--t1);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100dvh;
}

a {
  color: var(--t2);
  text-decoration: none;
  transition: color var(--fast);
}
a:hover { color: var(--gold); }

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

button {
  cursor: pointer;
  font-family: var(--font-body);
  border: none;
  background: none;
  color: inherit;
}

input, select, textarea {
  font-family: var(--font-body);
}

/* ── Utility Classes ─────────────────────────────────────────── */
.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;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--r99);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all var(--mid);
  white-space: nowrap;
  cursor: pointer;
  border: none;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary {
  background: var(--gold);
  color: #0c0c0b;
  box-shadow: var(--sh1);
}
.btn-primary:hover {
  background: var(--gold-hi);
  color: #0c0c0b;
  transform: translateY(-1px);
  box-shadow: var(--sh2);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--t2);
  border: 1px solid var(--border2);
}
.btn-ghost:hover {
  border-color: var(--gold-border);
  color: var(--gold);
  background: var(--gold-soft);
}

.btn-danger {
  background: transparent;
  color: #e05555;
  border: 1px solid rgba(224,85,85,.3);
}
.btn-danger:hover {
  background: rgba(224,85,85,.1);
  border-color: #e05555;
}

.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.72rem; }
.btn-lg { padding: 0.8rem 1.75rem; font-size: 0.84rem; }

/* ── Forms ───────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}

.form-group label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--t3);
}

.form-group input,
.form-group select,
.form-group textarea,
input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="url"], select, textarea {
  width: 100%;
  background: var(--surface);
  border: 1.5px solid var(--border2);
  color: var(--t1);
  padding: 0.72rem 0.9rem;
  border-radius: var(--r8);
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--fast), box-shadow var(--fast);
  box-shadow: var(--sh-in);
  appearance: none;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
input:focus, select:focus, textarea:focus {
  border-color: var(--gold);
  box-shadow: var(--sh-focus);
  background: var(--surface2);
}

input::placeholder, textarea::placeholder { color: var(--t4); }

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888680' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  padding-right: 2.2rem;
}

.select-input {
  background: var(--surface);
  border: 1.5px solid var(--border2);
  color: var(--t1);
  padding: 0.5rem 2.2rem 0.5rem 0.75rem;
  border-radius: var(--r8);
  font-size: 0.82rem;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888680' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
}
.checkbox-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--gold);
  cursor: pointer;
}

/* ── Cards ───────────────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r16);
  padding: 1.5rem;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--t1);
  letter-spacing: 0.02em;
}

/* ── Alerts & Flash ──────────────────────────────────────────── */
.alert, .flash {
  padding: 0.8rem 1rem;
  border-radius: var(--r8);
  font-size: 0.84rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.alert-error, .flash-error {
  background: rgba(224,85,85,.1);
  border-color: rgba(224,85,85,.3);
  color: #e08080;
}

.alert-success, .flash-success {
  background: rgba(110,185,130,.1);
  border-color: rgba(110,185,130,.3);
  color: #80c896;
}

.alert-warning, .flash-warning {
  background: rgba(201,169,110,.08);
  border-color: var(--gold-border);
  color: var(--gold);
}

/* ── Badge ───────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.55rem;
  border-radius: var(--r99);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge-gold    { background: var(--gold-soft); color: var(--gold); border: 1px solid var(--gold-border); }
.badge-success { background: rgba(110,185,130,.1); color: #80c896; border: 1px solid rgba(110,185,130,.2); }
.badge-muted   { background: var(--surface2); color: var(--t3); border: 1px solid var(--border); }

/* ── Divider ─────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 1.5rem 0;
}

/* ── Table ───────────────────────────────────────────────────── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}
.data-table th {
  padding: 0.6rem 0.9rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--t3);
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--border);
  color: var(--t2);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--surface2); }

/* ── Back Link ───────────────────────────────────────────────── */
.back-link {
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--t3);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-bottom: 0.3rem;
  transition: color var(--fast);
}
.back-link:hover { color: var(--gold); }

/* ── Animations ──────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Modal Overlay (used on admin + client) ──────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.78);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  animation: fadeIn 0.18s ease;
}
.modal-overlay.hidden { display: none !important; }

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r16);
  padding: 1.5rem;
  width: 100%;
  max-width: 460px;
  max-height: 88dvh;
  overflow-y: auto;
  position: relative;
  z-index: 9001;
  box-shadow: 0 24px 64px rgba(0,0,0,.7);
  animation: scaleIn 0.18s var(--ease);
}
.modal-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--t1);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.modal-footer {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

/* Radio option rows inside modals */
.section-option {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.8rem;
  border-radius: var(--r8);
  cursor: pointer;
  transition: background var(--fast);
  border: 1px solid transparent;
  font-size: 0.85rem;
  color: var(--t2);
}
.section-option:hover { background: var(--surface2); }
.section-option input[type="radio"] {
  accent-color: var(--gold);
  cursor: pointer;
  width: 15px; height: 15px;
  flex-shrink: 0;
}


::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--t4); }

/* ── Loading spinner ─────────────────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

/* ── Tooltip ─────────────────────────────────────────────────── */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface3);
  color: var(--t1);
  font-size: 0.7rem;
  padding: 0.3rem 0.6rem;
  border-radius: var(--r4);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--fast);
  z-index: 100;
  box-shadow: var(--sh2);
}
[data-tooltip]:hover::after { opacity: 1; }

/* ── Mobile safe area ────────────────────────────────────────── */
@supports (padding: max(0px)) {
  .safe-bottom { padding-bottom: max(1rem, env(safe-area-inset-bottom)); }
}