/* ─────────────────────────────────────────────────────────────────────────────
 *  Roka · style.css
 *  ─────────────────
 *  Aesthetic: "コインロッカー × 駅前掲示板" — refined industrial terminal.
 *  Dark concrete + steel base, amber LED-style readouts (the OTP code), and
 *  vermilion transit-signage accents (the alpha warning + the active-card stripe).
 *
 *  Three typefaces:
 *    • Big Shoulders Display — industrial signage display (wordmark, headings)
 *    • Geist                 — refined geometric sans for body text
 *    • JetBrains Mono        — code-feel mono, OTP digits live here
 *
 *  The OTP card structure (rendered by app.js):
 *
 *    <li class="account-card">
 *      <div class="account-card__meta">
 *        <div class="account-card__issuer">…</div>
 *        <div class="account-card__account">…</div>
 *      </div>
 *      <button class="account-card__code">123 456</button>
 *      <div class="account-card__countdown">
 *        <svg class="countdown-ring">…</svg>
 *        <span class="countdown-ring__label">23</span>
 *      </div>
 *      <button class="account-card__remove">×</button>
 *    </li>
 * ──────────────────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@400;700;900&family=Geist:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ── design tokens ────────────────────────────────────────────────────────── */
:root {
  /* spatial */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --max-width: 32rem;

  /* surface — graphite tunnel palette */
  --bg-base:        #0c0e11;
  --bg-elevated:    #15171c;
  --bg-elevated-2:  #1c1f25;
  --bg-input:       #0a0c0f;
  --border-subtle:  rgba(255, 255, 255, 0.06);
  --border-strong:  rgba(255, 255, 255, 0.12);
  --highlight-top:  rgba(255, 255, 255, 0.04);

  /* text */
  --text-primary:   #ebecef;
  --text-secondary: #9a9da4;
  --text-tertiary:  #5d6068;
  --text-muted:     #3d4046;

  /* accents */
  --amber:        #ffb53a;        /* LED-style OTP digits */
  --amber-glow:   rgba(255, 181, 58, 0.42);
  --amber-dim:    #c98818;
  --vermilion:    #d94340;        /* alpha warning, transit-stripe */
  --vermilion-dim: rgba(217, 67, 64, 0.16);
  --cyan-late:    #4fd1c5;        /* "fresh code" cool tone */
  --warn-late:    #ff6f55;        /* < 5s warning blush */

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:  cubic-bezier(0.7, 0, 0.84, 0);
  --dur-fast: 140ms;
  --dur-med:  240ms;
  --dur-slow: 520ms;
}

/* ── reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
ul, ol     { list-style: none; margin: 0; padding: 0; }
button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
input {
  font: inherit;
  color: inherit;
}
a {
  color: inherit;
  text-decoration: none;
}

/* ── canvas — concrete-tunnel atmosphere ──────────────────────────────────── */
html {
  background: var(--bg-base);
  color-scheme: dark;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100dvh;
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-base);
  /* layered atmosphere:
     1. radial warmth at top-left (a station-platform lamp)
     2. radial cool at bottom-right (the far tunnel)
     3. faint horizontal scanline grid (transit-board feel)            */
  background-image:
    radial-gradient(800px 480px at 0% -10%, rgba(255, 181, 58, 0.06), transparent 60%),
    radial-gradient(900px 600px at 100% 110%, rgba(79, 209, 197, 0.04), transparent 60%),
    repeating-linear-gradient(
      0deg,
      transparent 0 2px,
      rgba(255, 255, 255, 0.012) 2px 3px
    );
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-5) var(--space-4) var(--space-8);
  gap: var(--space-6);
}

::selection {
  background: var(--amber);
  color: var(--bg-base);
}

/* ── topbar ───────────────────────────────────────────────────────────────── */
.topbar {
  width: 100%;
  max-width: var(--max-width);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.topbar h1 {
  margin: 0;
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 900;
  font-size: clamp(2.5rem, 8vw, 3.5rem);
  letter-spacing: 0.06em;
  line-height: 0.85;
  color: var(--text-primary);
  position: relative;
  /* tiny accent: a thin vermilion stripe under the wordmark, transit-style */
}
.topbar h1::after {
  content: '';
  display: block;
  margin-top: var(--space-2);
  width: 2.2rem;
  height: 3px;
  background: var(--vermilion);
}

.brand {
  display: inline-block;
}
/* Japanese small tag — embraces the metaphor without going over */
.brand::after {
  content: 'ろか';
  margin-left: 0.6rem;
  font-family: 'Geist', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
  vertical-align: 0.45em;
}

/* alpha banner — vermilion alert pill */
.alpha-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--vermilion-dim);
  border-left: 3px solid var(--vermilion);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.alpha-banner strong {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--vermilion);
  text-transform: uppercase;
}
.alpha-banner code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}
.alpha-banner a {
  margin-left: auto;
  color: var(--vermilion);
  font-weight: 500;
  font-size: 0.82rem;
  border-bottom: 1px dotted currentColor;
  transition: color var(--dur-fast) var(--ease-out);
}
.alpha-banner a:hover { color: var(--text-primary); }

/* ── main column ──────────────────────────────────────────────────────────── */
main {
  width: 100%;
  max-width: var(--max-width);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ── auth screen (unlock + create vault) ──────────────────────────────────── */
.auth-screen {
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-elevated-2) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
}
.auth-screen::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--vermilion) 0%, var(--vermilion) 30%, var(--amber) 30%, var(--amber) 60%, transparent 60%);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.auth-screen h2 {
  margin: var(--space-2) 0 0;
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
}
.auth-screen .hint {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.auth-screen .hint.subtle {
  margin-top: var(--space-4);
  color: var(--text-tertiary);
  font-size: 0.78rem;
  line-height: 1.6;
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-4);
}
.auth-screen label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.auth-screen input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.92rem;
  color: var(--text-primary);
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.auth-screen input:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 181, 58, 0.12);
}
#auth-submit {
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-5);
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bg-base);
  background: var(--amber);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
#auth-submit:hover {
  background: #ffc966;
}
#auth-submit:active {
  transform: translateY(1px);
}
.hidden { display: none !important; }

/* ── action row (lock button) ─────────────────────────────────────────────── */
.action-row {
  display: flex;
  justify-content: flex-end;
  margin-bottom: calc(-1 * var(--space-2));
}
.ghost-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: transparent;
  letter-spacing: 0.04em;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.ghost-btn:hover {
  color: var(--vermilion);
  border-color: var(--vermilion);
}

/* ── empty state — like an unrented locker ───────────────────────────────── */
.empty {
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  text-align: center;
  color: var(--text-secondary);
  background:
    repeating-linear-gradient(
      45deg,
      transparent 0 10px,
      rgba(255, 255, 255, 0.012) 10px 11px
    );
}
.empty.hidden { display: none; }
.empty h2 {
  margin: 0 0 var(--space-2);
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}
.empty p { margin: 0; font-size: 0.92rem; }
.empty code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.86em;
  padding: 0.05em 0.35em;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

/* ── accounts list ────────────────────────────────────────────────────────── */
.accounts {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.account-card {
  /* the "locker door" — a 3-column grid: meta | code+countdown | remove */
  display: grid;
  grid-template-columns: 1fr auto auto;
  grid-template-rows: auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background:
    linear-gradient(180deg, var(--bg-elevated-2) 0%, var(--bg-elevated) 100%);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--amber-dim);
  border-radius: var(--radius-md);
  position: relative;
  isolation: isolate;
  transition:
    transform var(--dur-med) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-med) var(--ease-out);
  /* staggered entrance */
  animation: cardSlideIn var(--dur-slow) var(--ease-out) both;
}
.account-card:nth-child(1) { animation-delay: 0ms; }
.account-card:nth-child(2) { animation-delay: 60ms; }
.account-card:nth-child(3) { animation-delay: 120ms; }
.account-card:nth-child(4) { animation-delay: 180ms; }
.account-card:nth-child(5) { animation-delay: 240ms; }
.account-card:nth-child(n+6) { animation-delay: 300ms; }

.account-card::before {
  /* top specular highlight — like light catching the edge of a steel door */
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: var(--highlight-top);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  pointer-events: none;
}

.account-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  border-left-color: var(--amber);
  box-shadow:
    0 10px 30px -12px rgba(0, 0, 0, 0.6),
    0 4px 12px -6px rgba(0, 0, 0, 0.45);
}

.account-card.warning {
  border-left-color: var(--warn-late);
}

.account-card__meta {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.account-card__issuer {
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: uppercase;
}

.account-card__account {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── the LED departure board — the OTP code ───────────────────────────────── */
.account-card__code {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: clamp(1.4rem, 4.6vw, 1.85rem);
  letter-spacing: 0.12em;
  color: var(--amber);
  text-shadow: 0 0 18px var(--amber-glow);
  /* a subtle inset to make it feel like an inset LED display */
  background: rgba(0, 0, 0, 0.45);
  padding: var(--space-2) var(--space-3);
  border-radius: 4px;
  border: 1px solid rgba(255, 181, 58, 0.08);
  cursor: pointer;
  user-select: all;
  -webkit-user-select: all;
  transition:
    transform var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    color var(--dur-med) var(--ease-out),
    text-shadow var(--dur-med) var(--ease-out);
  /* a soft glow that pulses subtly forever (LED breathing) */
  animation: ledBreathe 4s ease-in-out infinite;
}
.account-card__code:hover {
  transform: scale(1.02);
  background: rgba(0, 0, 0, 0.6);
}
.account-card__code:active {
  transform: scale(0.98);
}

/* fresh-code state — runs briefly when the window resets */
.account-card__code.fresh {
  animation: codeFlip var(--dur-slow) var(--ease-out);
  color: var(--cyan-late);
  text-shadow: 0 0 22px rgba(79, 209, 197, 0.45);
}
.account-card__code.warning {
  color: var(--warn-late);
  text-shadow: 0 0 22px rgba(255, 111, 85, 0.45);
  animation: ledBreathe 1.2s ease-in-out infinite;
}
.account-card__code.copied {
  animation: codeCopied 600ms var(--ease-out);
}

/* ── countdown ring (SVG) ─────────────────────────────────────────────────── */
.account-card__countdown {
  position: relative;
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
}

.countdown-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.countdown-ring__track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.07);
  stroke-width: 2.6;
}
.countdown-ring__fill {
  fill: none;
  stroke: var(--amber);
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-dasharray: 94.25; /* 2 * π * r where r = 15 */
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear, stroke 200ms var(--ease-out);
}
.account-card.warning .countdown-ring__fill {
  stroke: var(--warn-late);
}

.countdown-ring__label {
  position: absolute;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* ── remove button — minimal ghost cross ──────────────────────────────────── */
.account-card__remove {
  width: 1.8rem;
  height: 1.8rem;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  color: var(--text-muted);
  border-radius: 50%;
  opacity: 0;
  transition:
    opacity var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}
.account-card:hover .account-card__remove,
.account-card:focus-within .account-card__remove {
  opacity: 1;
}
.account-card__remove:hover {
  color: var(--vermilion);
  background: var(--vermilion-dim);
}

/* ── add form — the locker rental panel ───────────────────────────────────── */
.add-form {
  background:
    linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-elevated-2) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
}
.add-form::before {
  /* top stripe — like the colored band on transit ticket machines */
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--amber) 0%, var(--amber) 30%, var(--vermilion) 30%, var(--vermilion) 50%, transparent 50%);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.add-form h2 {
  margin: var(--space-2) 0 0;
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.add-form .hint {
  margin: 0 0 var(--space-2);
  font-size: 0.84rem;
  color: var(--text-secondary);
}
.add-form .hint code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  padding: 0.05em 0.35em;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  color: var(--text-primary);
}

.add-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.add-form .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.add-form input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-3);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--text-primary);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.add-form input::placeholder {
  color: var(--text-muted);
  font-style: normal;
}
.add-form input:hover {
  border-color: var(--border-strong);
}
.add-form input:focus {
  outline: none;
  border-color: var(--amber);
  background: #000000;
  box-shadow: 0 0 0 3px rgba(255, 181, 58, 0.12);
}

.add-form .separator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-1) 0;
  color: var(--text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}
.add-form .separator::before,
.add-form .separator::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

#add-btn {
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-5);
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bg-base);
  background: var(--amber);
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
  transition:
    transform var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
#add-btn:hover {
  background: #ffc966;
  box-shadow: 0 6px 20px -6px var(--amber-glow);
}
#add-btn:active {
  transform: translateY(1px);
  box-shadow: 0 2px 8px -4px var(--amber-glow);
}
#add-btn::after {
  /* shimmer that crosses the button on hover */
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 30%,
    rgba(255, 255, 255, 0.5) 50%,
    transparent 70%
  );
  transform: translateX(-110%);
  transition: transform 800ms var(--ease-out);
  pointer-events: none;
}
#add-btn:hover::after {
  transform: translateX(110%);
}

.error {
  min-height: 1.2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--vermilion);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.error.visible { opacity: 1; }

/* ── footer ──────────────────────────────────────────────────────────────── */
footer {
  width: 100%;
  max-width: var(--max-width);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
}
footer a {
  color: var(--text-tertiary);
  border-bottom: 1px dotted transparent;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
footer a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber-dim);
}

/* ── focus ring (universal) ──────────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── animations ──────────────────────────────────────────────────────────── */
@keyframes cardSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes ledBreathe {
  0%, 100% { text-shadow: 0 0 12px var(--amber-glow); }
  50%      { text-shadow: 0 0 22px var(--amber-glow); }
}

@keyframes codeFlip {
  0%   { transform: scale(0.92) rotateX(-30deg); opacity: 0; }
  100% { transform: scale(1) rotateX(0); opacity: 1; }
}

@keyframes codeCopied {
  0%   { color: var(--cyan-late); text-shadow: 0 0 30px rgba(79, 209, 197, 0.6); transform: scale(1.05); }
  100% { color: var(--amber); text-shadow: 0 0 18px var(--amber-glow); transform: scale(1); }
}

/* ── reduced motion: drop the breathing, the flips, the stagger ──────────── */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .account-card__code { animation: none; }
}

/* ── narrow phones — collapse 2-column row to 1 ──────────────────────────── */
@media (max-width: 28rem) {
  .add-form .row {
    grid-template-columns: 1fr;
  }
  .account-card {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    row-gap: var(--space-3);
  }
  .account-card__meta {
    grid-column: 1 / -1;
  }
  .account-card__code {
    grid-column: 1;
  }
  .account-card__countdown {
    grid-column: 2;
  }
  .account-card__remove {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
  }
}

/* ── wide screens — cap width but center generously ──────────────────────── */
@media (min-width: 768px) {
  body { padding: var(--space-8) var(--space-5); }
}