/* ───────────────────────────────────────────
   名片填写工坊 · Luxury Gold Design System
   ─────────────────────────────────────────── */

:root {
  --ink: #14100c;
  --ink-soft: #211a13;
  --panel: #faf6ee;
  --panel-edge: #ece1cd;
  --gold: #d4a574;
  --gold-bright: #f3d9a4;
  --gold-deep: #a9793f;
  --gold-line: #c9a564;
  --champagne: #f6ead2;
  --text-dark: #2c2118;
  --text-mute: #8a7c66;
  --danger: #c5544b;
  --ok: #5a8c4f;
  --radius: 18px;
  --radius-sm: 12px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --gold-grad: linear-gradient(135deg, #f3d9a4 0%, #d4a574 45%, #a9793f 100%);
  --font-display: 'Playfair Display', 'Noto Serif SC', serif;
  --font-body: 'Noto Sans SC', -apple-system, system-ui, sans-serif;
}

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

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

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  color: #f2e6d2;
  background:
    radial-gradient(120% 80% at 50% -10%, #3a2c1c 0%, #1d1611 55%, #100c08 100%);
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* ── Atmosphere ── */
.grain {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.05; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.glow {
  position: fixed; z-index: 0; pointer-events: none;
  border-radius: 50%; filter: blur(90px); opacity: 0.5;
}
.glow--one {
  width: 46vw; height: 46vw; top: -12vw; left: -10vw;
  background: radial-gradient(circle, rgba(212,165,116,0.5), transparent 70%);
  animation: float1 16s var(--ease-soft) infinite alternate;
}
.glow--two {
  width: 40vw; height: 40vw; bottom: -14vw; right: -8vw;
  background: radial-gradient(circle, rgba(169,121,63,0.45), transparent 70%);
  animation: float2 20s var(--ease-soft) infinite alternate;
}
@keyframes float1 { to { transform: translate(6vw, 8vw) scale(1.15); } }
@keyframes float2 { to { transform: translate(-5vw, -6vw) scale(1.1); } }

/* ── Shell ── */
.shell {
  position: relative; z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(1.25rem, 5vw, 3rem) clamp(1rem, 4vw, 2.5rem) 4rem;
}

/* ── Masthead ── */
.masthead {
  text-align: center;
  margin-bottom: clamp(1.5rem, 5vw, 2.75rem);
  animation: riseIn 0.8s var(--ease) both;
}
.masthead__eyebrow {
  display: inline-block;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.45em;
  color: var(--gold);
  padding-left: 0.45em;
  margin-bottom: 0.6rem;
}
.masthead__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.25rem);
  font-weight: 700; line-height: 1.05;
  background: var(--gold-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.02em;
}
.masthead__sub {
  margin-top: 0.6rem;
  font-size: clamp(0.8rem, 2.5vw, 0.95rem);
  color: var(--text-mute);
  letter-spacing: 0.08em;
}

/* ── Workspace layout ── */
.workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}
@media (min-width: 880px) {
  .workspace {
    grid-template-columns: minmax(280px, 0.85fr) 1fr;
    gap: 3rem;
  }
}

/* ── Preview ── */
.preview {
  position: sticky; top: 1.5rem;
  display: flex; justify-content: center;
  animation: riseIn 0.9s var(--ease) 0.1s both;
}
.preview__frame {
  position: relative;
  width: min(320px, 78vw);
  aspect-ratio: 566 / 1024;
  border-radius: var(--radius);
  overflow: hidden;
  background: #1a130c;
  padding: 6px;
  box-shadow:
    0 2px 0 rgba(255,255,255,0.08) inset,
    0 30px 60px -20px rgba(0,0,0,0.7),
    0 0 0 1px rgba(212,165,116,0.25);
}
.preview__frame::before {
  /* gold bezel */
  content: ''; position: absolute; inset: 0; border-radius: var(--radius);
  padding: 2px;
  background: var(--gold-grad);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none; z-index: 3;
}
.preview__canvas {
  display: block; width: 100%; height: 100%;
  border-radius: 13px;
  background: #2a2018;
}
.preview__shine {
  position: absolute; inset: 6px; z-index: 2; border-radius: 13px;
  pointer-events: none; overflow: hidden;
}
.preview__shine::after {
  content: ''; position: absolute; top: -60%; left: -40%;
  width: 60%; height: 220%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: rotate(8deg);
  animation: sweep 6s var(--ease-soft) 1.2s infinite;
}
@keyframes sweep {
  0% { left: -50%; }
  35%, 100% { left: 130%; }
}
.preview__hint {
  position: absolute; z-index: 4; top: 12px; left: 12px;
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.62rem; font-weight: 600; letter-spacing: 0.12em;
  color: #fff8ec;
  padding: 4px 10px; border-radius: 99px;
  background: rgba(20,16,12,0.5); backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(243,217,164,0.3);
}
.preview__hint-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #6fdc6f; box-shadow: 0 0 8px #6fdc6f;
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink { 50% { opacity: 0.3; } }

/* ── Panel / Form ── */
.panel {
  background: var(--panel);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 5vw, 2.25rem);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.6) inset,
    0 24px 50px -24px rgba(0,0,0,0.55);
  border: 1px solid var(--panel-edge);
  animation: riseIn 0.9s var(--ease) 0.18s both;
}
.form { display: flex; flex-direction: column; gap: 1.35rem; }

/* ── Field ── */
.field { animation: riseIn 0.6s var(--ease) both; position: relative; z-index: 1; }
.field:nth-child(1) { animation-delay: 0.22s; }
.field:nth-child(2) { animation-delay: 0.28s; }
.field:nth-child(3) { animation-delay: 0.34s; }
.field:nth-child(4) { animation-delay: 0.40s; }
.field:nth-child(5) { animation-delay: 0.46s; }

.field__label {
  display: block;
  font-size: 0.82rem; font-weight: 700; letter-spacing: 0.16em;
  color: var(--gold-deep);
  margin-bottom: 0.35rem;
  transition: color 0.3s var(--ease);
}
.field__control {
  position: relative;
  display: flex; align-items: center;
  background: #fffdf9;
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius-sm);
  padding: 0 0.95rem;
  transition: border-color 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s;
  overflow: visible;
}
.field__input {
  flex: 1;
  border: none; outline: none; background: transparent;
  font-family: var(--font-body);
  font-size: 1.05rem; font-weight: 500;
  color: var(--text-dark);
  padding: 0.85rem 0;
  letter-spacing: 0.02em;
}
.field__input::placeholder { color: #c3b59c; font-weight: 400; }

/* ── Custom Dropdown — Luxury Gold ── */
.dropdown {
  position: relative; flex: 1;
}
.field:has(.dropdown.is-open) {
  z-index: 50;
}
.dropdown__trigger {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; border: none; outline: none; background: transparent;
  font-family: var(--font-body); font-size: 1.05rem; font-weight: 500;
  color: var(--text-dark); padding: 0.85rem 0; cursor: pointer;
  text-align: left; gap: 8px;
}
.dropdown__trigger[data-empty="true"] .dropdown__value {
  color: #c3b59c; font-weight: 400;
}
.dropdown__arrow {
  width: 16px; height: 16px; flex-shrink: 0;
  color: var(--gold-deep);
  transition: transform 0.4s var(--ease);
}
.dropdown.is-open .dropdown__arrow {
  transform: rotate(180deg);
}
.dropdown__menu {
  position: absolute; top: calc(100% + 6px); left: -16px; right: -16px; z-index: 100;
  list-style: none; padding: 6px;
  background: rgba(250, 246, 238, 0.97);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius-sm);
  box-shadow:
    0 8px 32px -4px rgba(20, 16, 12, 0.18),
    0 2px 8px rgba(20, 16, 12, 0.08),
    inset 0 1px 0 rgba(255,255,255,0.6);
  opacity: 0;
  transform: translateY(-8px) scale(0.97);
  transform-origin: top center;
  pointer-events: none;
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}
.dropdown.is-open .dropdown__menu {
  opacity: 1; transform: translateY(0) scale(1);
  pointer-events: auto;
}
.dropdown__item {
  padding: 11px 14px; border-radius: 8px; cursor: pointer;
  font-size: 0.98rem; font-weight: 500;
  color: var(--text-dark);
  position: relative;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s var(--ease);
  opacity: 0; transform: translateY(-6px);
}
.dropdown.is-open .dropdown__item {
  opacity: 1; transform: translateY(0);
}
.dropdown.is-open .dropdown__item:nth-child(1) { transition-delay: 0.04s; }
.dropdown.is-open .dropdown__item:nth-child(2) { transition-delay: 0.07s; }
.dropdown.is-open .dropdown__item:nth-child(3) { transition-delay: 0.10s; }
.dropdown.is-open .dropdown__item:nth-child(4) { transition-delay: 0.13s; }
.dropdown.is-open .dropdown__item:nth-child(5) { transition-delay: 0.16s; }
.dropdown.is-open .dropdown__item:nth-child(6) { transition-delay: 0.19s; }
.dropdown.is-open .dropdown__item:nth-child(7) { transition-delay: 0.22s; }
.dropdown__item:hover {
  background: linear-gradient(135deg, rgba(243,217,164,0.25), rgba(212,165,116,0.15));
  transform: translateX(3px);
}
.dropdown__item:active {
  transform: scale(0.97);
}
.dropdown__item.is-selected {
  color: var(--gold-deep); font-weight: 700;
}
.dropdown__item.is-selected::after {
  content: '✓'; position: absolute; right: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--gold-deep); font-weight: 700; font-size: 0.85rem;
}
.dropdown__item + .dropdown__item {
  margin-top: 2px;
}
.dropdown__backdrop {
  position: fixed; inset: 0; z-index: -1;
}
.field__suffix {
  font-size: 0.85rem; color: var(--text-mute); font-weight: 600;
  margin-left: 4px; flex-shrink: 0;
}

/* underline that grows from center on focus */
.field__line {
  position: absolute; left: 50%; right: 50%; bottom: 0; height: 2px;
  background: var(--gold-grad);
  transition: left 0.4s var(--ease), right 0.4s var(--ease);
}

/* check mark */
.field__check {
  flex-shrink: 0; margin-left: 8px;
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--gold-grad);
  transform: scale(0) rotate(-30deg); opacity: 0;
  transition: transform 0.45s var(--ease), opacity 0.3s;
}
.field__check svg {
  width: 13px; height: 13px; fill: none;
  stroke: #fff; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 24; stroke-dashoffset: 24;
}

.field__error {
  font-size: 0.72rem; color: var(--danger);
  margin-top: 0.4rem; padding-left: 0.2rem;
  max-height: 0; opacity: 0; overflow: hidden;
  transform: translateY(-4px);
  transition: max-height 0.3s var(--ease), opacity 0.3s, transform 0.3s;
}

/* states */
.field--focus .field__control {
  border-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(212,165,116,0.16);
  background: #fff;
}
.field--focus .field__label { color: var(--gold-deep); }
.field--focus .field__line { left: 0; right: 0; }

.field--valid .field__control { border-color: rgba(212,165,116,0.6); }
.field--valid .field__check { transform: scale(1) rotate(0); opacity: 1; }
.field--valid .field__check svg { animation: drawCheck 0.5s var(--ease) 0.1s forwards; }
@keyframes drawCheck { to { stroke-dashoffset: 0; } }

.field--invalid .field__control { border-color: var(--danger); background: #fff8f7; }
.field--invalid .field__error { max-height: 40px; opacity: 1; transform: translateY(0); }
.field--shake .field__control { animation: shake 0.4s var(--ease-soft); }
@keyframes shake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}

/* sparkle burst on valid */
.field__control .spark {
  position: absolute; width: 6px; height: 6px; pointer-events: none;
  background: var(--gold-bright); border-radius: 50%;
  z-index: 5;
}

/* ── Progress ── */
.progress { margin-top: 0.25rem; }
.progress__track {
  height: 6px; border-radius: 99px;
  background: #ece1cd; overflow: hidden;
}
.progress__fill {
  height: 100%; width: 0%;
  background: var(--gold-grad);
  border-radius: 99px;
  transition: width 0.5s var(--ease);
  box-shadow: 0 0 12px rgba(212,165,116,0.6);
}
.progress__label {
  display: block; margin-top: 0.5rem;
  font-size: 0.72rem; color: var(--text-mute); letter-spacing: 0.08em;
}

/* ── Download button ── */
.download {
  position: relative;
  margin-top: 0.5rem;
  height: 56px;
  border: none; border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem; font-weight: 700; letter-spacing: 0.18em;
  color: #fff;
  cursor: not-allowed;
  overflow: hidden;
  background: #d8cdb8;
  transition: background 0.4s var(--ease), transform 0.2s var(--ease), box-shadow 0.4s;
}
.download__text { position: relative; z-index: 2; transition: opacity 0.3s; }
.download::before {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: var(--gold-grad);
  opacity: 0; transition: opacity 0.4s var(--ease);
}
.download--ready {
  cursor: pointer; color: #3a2a14;
  box-shadow: 0 14px 30px -12px rgba(169,121,63,0.7);
  animation: breathe 2.6s var(--ease-soft) infinite;
}
.download--ready::before { opacity: 1; }
.download--ready:hover { transform: translateY(-2px); }
.download--ready:active { transform: translateY(0) scale(0.99); }
@keyframes breathe {
  50% { box-shadow: 0 14px 40px -10px rgba(243,217,164,0.85); }
}

/* shimmer sweep on the ready button */
.download--ready::after {
  content: ''; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%;
  z-index: 1;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.5), transparent);
  animation: btnSweep 3.2s var(--ease-soft) infinite;
}
@keyframes btnSweep { 0% { left: -60%; } 45%, 100% { left: 130%; } }

.download__spinner {
  position: absolute; z-index: 2; top: 50%; left: 50%;
  width: 22px; height: 22px; margin: -11px 0 0 -11px;
  border: 3px solid rgba(58,42,20,0.3); border-top-color: #3a2a14;
  border-radius: 50%;
  opacity: 0; transform: scale(0.4);
  transition: opacity 0.25s, transform 0.25s;
}
.download--loading { pointer-events: none; }
.download--loading .download__text { opacity: 0; }
.download--loading .download__spinner { opacity: 1; transform: scale(1); animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: scale(1) rotate(360deg); } }

/* ── Toast ── */
.toast {
  position: fixed; z-index: 50; left: 50%; bottom: 28px;
  transform: translate(-50%, 140%);
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px; border-radius: 99px;
  background: rgba(20,16,12,0.92); backdrop-filter: blur(10px);
  border: 1px solid rgba(243,217,164,0.35);
  color: #f6ead2; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em;
  box-shadow: 0 20px 40px -16px rgba(0,0,0,0.7);
  transition: transform 0.55s var(--ease);
}
.toast--show { transform: translate(-50%, 0); }
.toast__icon {
  width: 18px; height: 18px; fill: none; stroke: var(--gold-bright);
  stroke-width: 3; stroke-linecap: round; stroke-linejoin: round;
}

/* ── Entrance animation ── */
@keyframes riseIn {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── iOS 长按保存弹层 ── */
#saveOverlay {
  display: none; position: fixed; inset: 0; z-index: 100;
}
#saveOverlay.save-overlay--show { display: flex; align-items: center; justify-content: center; }
.save-overlay__backdrop {
  position: absolute; inset: 0; background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.save-overlay__body {
  position: relative; z-index: 1; display: flex; flex-direction: column;
  align-items: center; gap: 16px; padding: 24px; max-width: 92vw;
}
.save-overlay__hint {
  color: #fff; font-size: 1rem; font-weight: 600;
  text-align: center; text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}
.save-overlay__img {
  max-width: 80vw; max-height: 65vh; border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
  -webkit-touch-callout: default !important;
}
.save-overlay__close {
  padding: 10px 36px; border: none; border-radius: 99px;
  background: rgba(255,255,255,0.15); color: #fff; font-size: 0.95rem;
  font-weight: 600; cursor: pointer; backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.save-overlay__close:active { background: rgba(255,255,255,0.25); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}