/* Hallmark · genre: editorial · theme: Studio warm · design-system: design.md · designed-as-app
 * pre-emit critique: P5 H5 E4 S5 R5 V4
 * contrast: pass (40–41) · tokens: pass (48) · responsive: pass (49)
 */
/* ==========================================================================
   Photobooth — token thương hiệu dùng chung (gallery + portal)
   ========================================================================== */

:root {
  --lm-cream:  var(--color-paper);
  --lm-brown:  var(--color-ink);
  --lm-yellow: var(--color-accent);
  --lm-blue:   var(--color-secondary);
  --pt-logo-text: "Photobooth Studio";
  --pt-logo-url: none;

  /* Sắc độ suy ra từ nâu — dùng cho chữ phụ, viền, nền chìm */
  --lm-brown-80: color-mix(in oklch, var(--color-ink) 80%, transparent);
  --lm-brown-65: color-mix(in oklch, var(--color-ink) 65%, transparent);
  --lm-brown-40: color-mix(in oklch, var(--color-ink) 40%, transparent);
  --lm-brown-15: color-mix(in oklch, var(--color-ink) 15%, transparent);
  --lm-brown-08: color-mix(in oklch, var(--color-ink) 8%, transparent);

  /* ── Chữ: alias cũ trỏ vào cặp font của design.md ───────────────────── */
  --lm-display: var(--font-display);
  --lm-body:    var(--font-body);

  /* ── Nhịp & bo góc ──────────────────────────────────────────────────── */
  --lm-gap:   16px;
  --lm-gap-l: 28px;
  --lm-radius: 4px;

  /* Bề rộng nội dung tối đa — gallery là trang đọc trên điện thoại,
     không cần rộng hơn thế này trên desktop. */
  --lm-max: 880px;
}

/* ── Hoạ tiết sọc thương hiệu ────────────────────────────────────────────── */
.lm-stripes {
  background-color: var(--lm-cream);
  background-image: none;
}

/* ── Logo ───────────────────────────────────────────────────────────────── */
.lm-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  color: var(--lm-brown);
  background: transparent center / contain no-repeat;
  aspect-ratio: 2.4 / 1;
  text-align: center;
}
.lm-logo::before {
  content: var(--pt-logo-text);
  font-family: var(--lm-display);
  font-weight: 500;
  font-size: clamp(16px, 8vw, 30px);
  letter-spacing: .08em;
  line-height: 1.05;
  text-transform: uppercase;
}
.lm-logo--cream { color: var(--lm-cream); }
.lm-logo.has-custom-logo::before { content: ""; }
.lm-logo.has-custom-logo {
  background-image: var(--pt-logo-url);
}
.side-logo::before { font-size: 15px; line-height: 1.15; }

/* Khoảng trống an toàn quanh logo theo guideline (4x trên tổng 17x chiều
   cao khối) ≈ 23% chiều cao. Luôn bọc logo trong lớp này, đừng đặt sát mép. */
.lm-logo-safe { padding: 6% 0; }

/* ── Nút ──────────────────────────────────────────────────────────────────
   Chỉ hai kiểu: nâu đặc (hành động chính) và viền nâu (hành động phụ).
   KHÔNG làm nút nền vàng/xanh — chữ trên đó không đạt tương phản. */
.lm-btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 54px;
  padding: 14px 22px;
  border: 1.5px solid var(--lm-brown);
  border-radius: var(--lm-radius);
  background: var(--lm-brown);
  color: var(--lm-cream);
  font-family: var(--lm-body);
  font-size: 15px; font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out),
              opacity var(--dur-micro) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.lm-btn:hover  { background: var(--color-ink-2); border-color: var(--color-ink-2); }
.lm-btn:active { opacity: .85; }
.lm-btn[disabled] { opacity: .45; cursor: default; }

.lm-btn--ghost { background: transparent; color: var(--lm-brown); }
.lm-btn--ghost:hover { background: var(--lm-brown); color: var(--lm-cream); }

.lm-btn--small { width: auto; min-height: 40px; padding: 9px 18px; font-size: 13px; }

/* ── Chữ hiển thị ───────────────────────────────────────────────────────── */
.lm-display {
  font-family: var(--lm-display);
  font-weight: 300;
  letter-spacing: .14em;
  text-transform: uppercase;
  line-height: 1.25;
  color: var(--lm-brown);
}

/* ── Nền tảng ─────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--lm-cream);
  color: var(--lm-brown);
  font-family: var(--lm-body);
  font-size: 16px;      /* không nhỏ hơn — đây là trang đọc trên điện thoại */
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.lm-wrap { width: 100%; max-width: var(--lm-max); margin: 0 auto; padding: 0 20px; }

.lm-muted { color: var(--lm-brown-65); }

.lm-hidden { display: none !important; }

:focus-visible { outline: 2px solid var(--lm-brown); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ══ Hallmark shared system ═══════════════════════════════════════════════ */
:root {
  --lm-cream: var(--color-paper);
  --lm-brown: var(--color-ink);
  --lm-yellow: var(--color-accent);
  --lm-blue: var(--color-secondary);
  --lm-brown-80: color-mix(in oklch, var(--color-ink) 80%, transparent);
  --lm-brown-65: color-mix(in oklch, var(--color-ink) 65%, transparent);
  --lm-brown-40: color-mix(in oklch, var(--color-ink) 40%, transparent);
  --lm-brown-15: color-mix(in oklch, var(--color-ink) 15%, transparent);
  --lm-brown-08: color-mix(in oklch, var(--color-ink) 8%, transparent);
  --lm-display: var(--font-display);
  --lm-body: var(--font-body);
  --lm-gap: var(--space-sm);
  --lm-gap-l: var(--space-lg);
  --lm-radius: var(--radius-input);
  --lm-max: 64rem;
}

html,
body {
  max-width: 100%;
  overflow-x: clip;
}

body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
}

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

.lm-wrap {
  width: min(100%, var(--lm-max));
  padding-inline: clamp(var(--space-sm), 4vw, var(--space-lg));
}

.lm-logo {
  color: var(--color-ink);
  min-width: 0;
}

.lm-logo::before {
  font-family: var(--font-display);
  font-size: clamp(var(--text-md), 5vw, var(--text-xl));
  font-weight: var(--font-weight-display);
  letter-spacing: -0.015em;
  line-height: 1;
  text-transform: none;
  overflow-wrap: anywhere;
}

.lm-logo--cream { color: var(--color-paper); }

.lm-display {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  font-weight: var(--font-weight-display);
  letter-spacing: -0.015em;
  line-height: 1.08;
  text-transform: none;
  overflow-wrap: anywhere;
  min-width: 0;
}

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

.lm-btn {
  min-height: 48px;
  padding: var(--space-xs) var(--space-md);
  gap: var(--space-2xs);
  border: var(--rule-hair) solid var(--color-ink);
  border-radius: var(--radius-input);
  background: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform var(--dur-micro) var(--ease-out),
              opacity var(--dur-micro) var(--ease-out),
              background-color var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out);
}

.lm-btn:hover { background: var(--color-ink-2); border-color: var(--color-ink-2); }
.lm-btn:active { opacity: 1; transform: translateY(1px); }
.lm-btn[disabled],
.lm-btn[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; transform: none; }
.lm-btn[aria-busy="true"],
.lm-btn[data-state="loading"] { cursor: progress; opacity: 0.72; }
.lm-btn.is-error,
.lm-btn[data-state="error"] { background: var(--color-danger); border-color: var(--color-danger); }
.lm-btn.is-success,
.lm-btn[data-state="success"] { background: var(--color-ink-2); border-color: var(--color-ink-2); }

.lm-btn--ghost {
  background: transparent;
  border-color: var(--color-rule-strong);
  color: var(--color-ink);
}

.lm-btn--ghost:hover {
  background: var(--color-paper-2);
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.lm-btn--small {
  min-height: 44px;
  padding: var(--space-2xs) var(--space-sm);
  font-size: var(--text-xs);
}

:focus-visible {
  outline: var(--rule-fine) solid var(--color-focus);
  outline-offset: 3px;
}

::selection {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: var(--dur-micro) !important;
    transition-property: opacity !important;
  }
}