/**
 * Coffee Adventures — Apple Liquid Glass Design System
 * Shared styles for all /app/ pages.
 */

/* ── Dark theme tokens (default) ── */
:root, [data-theme="dark"] {
  color-scheme: dark;

  /* System font stack — SF Pro on Apple devices */
  --ca-font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', system-ui, sans-serif;

  /* Base colors */
  --ca-bg: #0D0B09;
  --ca-text: #F5EDE6;
  --ca-text-light: rgba(245, 237, 230, 0.45);
  --ca-on-accent: #0D0B09;
  --ca-accent: #FF8A4C;
  --ca-accent-soft: rgba(255, 138, 76, 0.14);
  --ca-danger: #FF453A;
  --ca-success: #30D158;

  /* ── Liquid Glass tokens ── */
  --ca-glass-bg: rgba(255, 248, 242, 0.07);
  --ca-glass-bg-elevated: rgba(255, 248, 242, 0.10);
  --ca-glass-border: rgba(255, 248, 242, 0.10);
  --ca-glass-border-top: rgba(255, 248, 242, 0.22);
  --ca-glass-blur: blur(24px) saturate(160%);
  --ca-glass-blur-strong: blur(40px) saturate(200%);
  --ca-glass-shadow:
    inset 0 1px 0 rgba(255, 248, 242, 0.18),
    0 8px 32px rgba(0, 0, 0, 0.35),
    0 1px 3px rgba(0, 0, 0, 0.2);
  --ca-glass-shadow-lg:
    inset 0 1px 0 rgba(255, 248, 242, 0.14),
    0 16px 48px rgba(0, 0, 0, 0.55),
    0 4px 12px rgba(0, 0, 0, 0.3);

  /* Legacy compatibility aliases */
  --ca-card: rgba(255, 248, 242, 0.07);
  --ca-border: rgba(255, 248, 242, 0.10);
  --ca-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --ca-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);

  /* Form */
  --ca-input-bg: rgba(255, 248, 242, 0.06);
  --ca-input-focus-bg: rgba(255, 248, 242, 0.09);
  --ca-placeholder: rgba(245, 237, 230, 0.25);
  --ca-select-bg: #1A1410;

  /* Modal */
  --ca-modal-bg: rgba(16, 12, 9, 0.88);
  --ca-modal-actions-bg: rgba(16, 12, 9, 0.92);
  --ca-modal-border: rgba(255, 248, 242, 0.12);
  --ca-modal-border-divider: rgba(255, 248, 242, 0.08);
  --ca-modal-handle: rgba(255, 248, 242, 0.2);

  /* Nav */
  --ca-nav-bg: rgba(10, 8, 6, 0.72);
  --ca-nav-border: rgba(255, 248, 242, 0.08);
  --ca-nav-shadow:
    inset 0 1px 0 rgba(255, 248, 242, 0.06),
    0 -4px 24px rgba(0, 0, 0, 0.35);

  /* Toast */
  --ca-toast-bg: rgba(28, 22, 18, 0.92);
  --ca-toast-border: rgba(255, 248, 242, 0.14);

  /* Misc */
  --ca-spinner-track: rgba(255, 248, 242, 0.12);
  --ca-overlay-bg: rgba(0, 0, 0, 0.55);

  --ca-radius: 18px;
  --ca-nav-h: 60px;
}

/* ── Light theme tokens ── */
[data-theme="light"] {
  color-scheme: light;

  --ca-bg: #F5EDE3;
  --ca-text: #1C1007;
  --ca-text-light: rgba(28, 16, 7, 0.50);
  --ca-on-accent: #FFFFFF;
  --ca-accent: #C04D00;
  --ca-accent-soft: rgba(192, 77, 0, 0.12);
  --ca-danger: #D70015;
  --ca-success: #1B8A3C;

  --ca-glass-bg: rgba(255, 255, 255, 0.55);
  --ca-glass-bg-elevated: rgba(255, 255, 255, 0.72);
  --ca-glass-border: rgba(28, 16, 7, 0.10);
  --ca-glass-border-top: rgba(255, 255, 255, 0.85);
  --ca-glass-blur: blur(24px) saturate(140%);
  --ca-glass-blur-strong: blur(40px) saturate(180%);
  --ca-glass-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.85),
    0 4px 16px rgba(28, 16, 7, 0.08),
    0 1px 3px rgba(28, 16, 7, 0.05);
  --ca-glass-shadow-lg:
    inset 0 1px 0 rgba(255, 255, 255, 0.85),
    0 12px 40px rgba(28, 16, 7, 0.14),
    0 4px 12px rgba(28, 16, 7, 0.07);

  --ca-card: rgba(255, 255, 255, 0.55);
  --ca-border: rgba(28, 16, 7, 0.10);
  --ca-shadow-sm: 0 2px 8px rgba(28, 16, 7, 0.07);
  --ca-shadow: 0 4px 20px rgba(28, 16, 7, 0.10);

  --ca-input-bg: rgba(28, 16, 7, 0.04);
  --ca-input-focus-bg: rgba(28, 16, 7, 0.07);
  --ca-placeholder: rgba(28, 16, 7, 0.30);
  --ca-select-bg: #EDE0D0;

  --ca-modal-bg: rgba(250, 244, 236, 0.94);
  --ca-modal-actions-bg: rgba(248, 241, 232, 0.97);
  --ca-modal-border: rgba(28, 16, 7, 0.10);
  --ca-modal-border-divider: rgba(28, 16, 7, 0.07);
  --ca-modal-handle: rgba(28, 16, 7, 0.15);

  --ca-nav-bg: rgba(248, 242, 234, 0.82);
  --ca-nav-border: rgba(28, 16, 7, 0.08);
  --ca-nav-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.70),
    0 -4px 24px rgba(28, 16, 7, 0.06);

  --ca-toast-bg: rgba(255, 250, 244, 0.95);
  --ca-toast-border: rgba(28, 16, 7, 0.12);

  --ca-spinner-track: rgba(28, 16, 7, 0.10);
  --ca-overlay-bg: rgba(0, 0, 0, 0.30);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ca-font);
  background:
    radial-gradient(ellipse 90% 55% at 25% 0%, color-mix(in srgb, var(--ca-accent) 6%, transparent) 0%, transparent 55%),
    radial-gradient(ellipse 70% 45% at 75% 100%, color-mix(in srgb, var(--ca-accent) 4%, transparent) 0%, transparent 50%),
    var(--ca-bg);
  background-attachment: fixed;
  color: var(--ca-text);
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}
[data-theme="light"] body {
  background:
    radial-gradient(ellipse 90% 55% at 25% 0%, color-mix(in srgb, var(--ca-accent) 5%, transparent) 0%, transparent 55%),
    radial-gradient(ellipse 70% 45% at 75% 100%, color-mix(in srgb, var(--ca-accent) 3%, transparent) 0%, transparent 50%),
    var(--ca-bg);
  background-attachment: fixed;
}

/* ── Layout ── */
.app-wrap {
  padding: 0 16px;
  padding-top: calc(env(safe-area-inset-top) + 12px);
  padding-bottom: calc(var(--ca-nav-h) + env(safe-area-inset-bottom) + 72px);
  max-width: 640px;
  margin: 0 auto;
}

/* ── Page header ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-top: 8px;
}
.page-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
.page-subtitle {
  font-size: 13px;
  font-weight: 500;
  color: var(--ca-text-light);
  margin-top: 4px;
  letter-spacing: -0.01em;
}

/* ── Cards — Liquid Glass ── */
.card {
  background: var(--ca-glass-bg);
  backdrop-filter: var(--ca-glass-blur);
  -webkit-backdrop-filter: var(--ca-glass-blur);
  border: 1px solid var(--ca-glass-border);
  border-top-color: var(--ca-glass-border-top);
  border-radius: var(--ca-radius);
  padding: 16px;
  margin-bottom: 10px;
  box-shadow: var(--ca-glass-shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.card-grid .card { margin-bottom: 0; }
.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.card-title { font-size: 15px; font-weight: 600; margin-bottom: 3px; letter-spacing: -0.01em; }
.card-meta { font-size: 13px; color: var(--ca-text-light); line-height: 1.4; }
.card-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.tag {
  font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; padding: 3px 8px; border-radius: 6px;
  background: var(--ca-accent-soft);
  border: 1px solid color-mix(in srgb, var(--ca-accent) 28%, transparent);
  color: var(--ca-accent);
}

/* ── Stats row ── */
.stats-row {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.stat-card {
  flex: 1;
  background: var(--ca-glass-bg);
  backdrop-filter: var(--ca-glass-blur);
  -webkit-backdrop-filter: var(--ca-glass-blur);
  border: 1px solid var(--ca-glass-border);
  border-top-color: var(--ca-glass-border-top);
  border-radius: 18px;
  padding: 14px 8px;
  text-align: center;
  box-shadow: var(--ca-glass-shadow);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
}
.stat-card:hover {
  border-color: color-mix(in srgb, var(--ca-accent) 40%, transparent);
  box-shadow:
    inset 0 1px 0 var(--ca-glass-border-top),
    0 8px 32px color-mix(in srgb, var(--ca-accent) 18%, transparent);
}
.stat-card:active { transform: scale(0.96); }
.stat-n {
  font-size: 28px; font-weight: 700;
  letter-spacing: -0.04em; line-height: 1;
  margin-bottom: 2px;
}
.stat-l {
  font-size: 10px; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--ca-text-light);
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; padding: 0 18px; height: 40px; border-radius: 999px;
  font-family: var(--ca-font); font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; transition: all 0.2s ease;
  text-decoration: none; -webkit-tap-highlight-color: transparent;
  letter-spacing: -0.01em;
}
.btn:active { transform: scale(0.96); }
.btn-primary {
  background: var(--ca-accent);
  color: var(--ca-on-accent);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--ca-accent) 40%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.20);
}
.btn-primary:hover { box-shadow: 0 6px 22px color-mix(in srgb, var(--ca-accent) 55%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.20); }
.btn-secondary {
  background: var(--ca-glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--ca-glass-border);
  border-top-color: var(--ca-glass-border-top);
  color: var(--ca-text);
  box-shadow: inset 0 1px 0 var(--ca-glass-border-top);
}
.btn-danger {
  background: rgba(255, 69, 58, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 120, 110, 0.25);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 69, 58, 0.25);
}
.btn-sm { height: 32px; font-size: 12px; padding: 0 13px; }

/* ── FAB ── */
.fab {
  position: fixed;
  bottom: calc(var(--ca-nav-h) + env(safe-area-inset-bottom) + 14px);
  right: 16px;
  width: 52px; height: 52px; border-radius: 999px;
  background: var(--ca-accent);
  color: var(--ca-on-accent);
  font-size: 26px; font-weight: 400; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  border: 1px solid color-mix(in srgb, var(--ca-accent) 60%, #fff);
  box-shadow:
    0 6px 24px color-mix(in srgb, var(--ca-accent) 45%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.30);
  transition: all 0.2s ease;
  z-index: 40;
  -webkit-tap-highlight-color: transparent;
}
.fab:active { transform: scale(0.92); }

/* ── Forms ── */
.form-group { margin-bottom: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-label {
  display: block; font-size: 11px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ca-text-light); margin-bottom: 6px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--ca-input-bg);
  border: 1px solid var(--ca-glass-border);
  border-radius: 12px; padding: 10px 12px;
  font-family: var(--ca-font); font-size: 15px; font-weight: 400;
  color: var(--ca-text); outline: none; transition: border-color 0.2s, background 0.2s;
  -webkit-appearance: none; appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--ca-accent);
  background: var(--ca-input-focus-bg);
}
.form-input::placeholder, .form-textarea::placeholder {
  color: var(--ca-placeholder);
}
.form-textarea { resize: vertical; min-height: 72px; line-height: 1.5; }
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(245,237,230,0.4)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
[data-theme="light"] .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(28,16,7,0.4)' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
}
.form-select option {
  background: var(--ca-select-bg);
  color: var(--ca-text);
}

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: var(--ca-overlay-bg);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  display: flex; align-items: flex-end; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.25s;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal-sheet {
  width: 100%; max-height: 94vh; overflow-y: auto;
  background: var(--ca-modal-bg);
  backdrop-filter: var(--ca-glass-blur-strong);
  -webkit-backdrop-filter: var(--ca-glass-blur-strong);
  border: 1px solid var(--ca-modal-border);
  border-bottom: none;
  border-radius: 22px 22px 0 0;
  padding: 20px 16px 0;
  box-shadow:
    inset 0 1px 0 var(--ca-glass-border-top),
    0 -8px 48px rgba(0, 0, 0, 0.4);
  transform: translateY(100%);
  transition: transform 0.32s cubic-bezier(0.32, 0.72, 0, 1);
}
.modal-overlay.open .modal-sheet { transform: translateY(0); }
.modal-handle {
  width: 36px; height: 4px; border-radius: 2px;
  background: var(--ca-modal-handle); margin: 0 auto 16px;
}
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 16px; letter-spacing: -0.02em; }
.modal-actions {
  display: flex; gap: 8px;
  flex-wrap: wrap;
  position: sticky; bottom: 0;
  background: var(--ca-modal-actions-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  margin: 16px -16px 0;
  padding: 12px 16px calc(env(safe-area-inset-bottom) + 12px);
  border-top: 1px solid var(--ca-modal-border-divider);
  z-index: 2;
}
.modal-actions .btn { flex: 1; min-width: 0; }
.modal-actions .btn-danger { flex: 0 0 100%; }

/* ── Navigation bar — Liquid Glass ── */
.nav-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: calc(var(--ca-nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--ca-nav-bg);
  backdrop-filter: blur(32px) saturate(200%) brightness(1.04);
  -webkit-backdrop-filter: blur(32px) saturate(200%) brightness(1.04);
  display: flex; align-items: center;
  border-top: 1px solid var(--ca-nav-border);
  box-shadow: var(--ca-nav-shadow);
  z-index: 90;
}
.nav-item {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2px; padding: 4px 2px;
  color: var(--ca-text-light); text-decoration: none;
  font-size: 9px; font-weight: 700; letter-spacing: 0.03em;
  text-transform: uppercase; transition: color 0.15s;
  min-width: 0;
}
.nav-item.active, .nav-item:hover { color: var(--ca-accent); }
.nav-icon {
  width: 19px; height: 19px;
  fill: none; stroke: currentColor;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}

/* ── Theme settings ── */
.theme-card {
  background: var(--ca-glass-bg);
  backdrop-filter: var(--ca-glass-blur);
  -webkit-backdrop-filter: var(--ca-glass-blur);
  border: 1px solid var(--ca-glass-border);
  border-top-color: var(--ca-glass-border-top);
  border-radius: var(--ca-radius);
  box-shadow: var(--ca-glass-shadow);
  overflow: hidden;
  margin-bottom: 10px;
}
.theme-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
}
.theme-divider {
  height: 1px;
  background: var(--ca-glass-border);
}
.theme-row-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.theme-seg {
  display: flex;
  gap: 2px;
  background: color-mix(in srgb, var(--ca-text) 8%, transparent);
  border-radius: 9px;
  padding: 2px;
}
.theme-seg-btn {
  padding: 5px 13px;
  border-radius: 7px;
  border: none;
  background: transparent;
  color: var(--ca-text-light);
  font-family: var(--ca-font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.theme-seg-btn.active {
  background: var(--ca-glass-bg-elevated);
  color: var(--ca-text);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}
.accent-palette {
  display: flex;
  gap: 10px;
}
.accent-chip {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
  outline: none;
  padding: 0;
}
.accent-chip:active { transform: scale(0.88); }
.accent-chip.active {
  border-color: var(--ca-text);
  transform: scale(1.12);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.20);
}

/* ── Toast notifications ── */
.toast {
  position: fixed;
  bottom: calc(var(--ca-nav-h) + env(safe-area-inset-bottom) + 14px);
  left: 50%; transform: translateX(-50%) translateY(16px);
  background: var(--ca-toast-bg);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--ca-toast-border);
  color: var(--ca-text);
  padding: 10px 20px; border-radius: 999px;
  font-size: 13px; font-weight: 600;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  opacity: 0; transition: all 0.25s ease;
  pointer-events: none; white-space: nowrap;
  z-index: 200;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error {
  background: rgba(255, 69, 58, 0.88);
  border-color: rgba(255, 130, 120, 0.3);
  color: #fff;
}
.toast.success {
  background: rgba(48, 209, 88, 0.88);
  border-color: rgba(130, 240, 160, 0.3);
  color: #0D0B09;
}

/* ── Loading spinner ── */
.spinner {
  width: 28px; height: 28px; border-radius: 50%;
  border: 2px solid var(--ca-spinner-track);
  border-top-color: var(--ca-accent);
  animation: spin 0.8s linear infinite;
  margin: 40px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Empty state ── */
.empty-state {
  text-align: center; padding: 48px 20px;
  color: var(--ca-text-light);
}
.empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty-title { font-size: 17px; font-weight: 700; color: var(--ca-text); margin-bottom: 6px; letter-spacing: -0.01em; }
.empty-body { font-size: 14px; line-height: 1.6; margin-bottom: 24px; }

/* ── Login screen ── */
.login-screen {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  min-height: 90vh; text-align: center;
  gap: 16px;
}
.login-icon { font-size: 72px; margin-bottom: 4px; filter: drop-shadow(0 4px 16px color-mix(in srgb, var(--ca-accent) 40%, transparent)); }
.login-title { font-size: 34px; font-weight: 700; letter-spacing: -0.03em; }
.login-sub {
  font-size: 15px; color: var(--ca-text-light);
  max-width: 280px; line-height: 1.55;
}
.google-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #1A1410;
  padding: 13px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600;
  text-decoration: none; margin-top: 8px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow:
    0 6px 24px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  transition: all 0.2s ease;
}
[data-theme="light"] .google-btn {
  border-color: rgba(28, 16, 7, 0.12);
  box-shadow: 0 4px 16px rgba(28, 16, 7, 0.10), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}
.google-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 28px rgba(0, 0, 0, 0.30), inset 0 1px 0 rgba(255, 255, 255, 0.8); }
.google-btn:active { transform: scale(0.97); }
.google-icon { width: 20px; height: 20px; }

/* ── Quick action card ── */
.quick-brew-card {
  background: linear-gradient(135deg, var(--ca-accent) 0%, color-mix(in srgb, var(--ca-accent) 82%, #000) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid color-mix(in srgb, var(--ca-accent) 50%, #fff);
  border-radius: var(--ca-radius);
  padding: 22px 20px;
  margin-bottom: 16px;
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 6px 24px color-mix(in srgb, var(--ca-accent) 35%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition: transform 0.2s, box-shadow 0.2s;
}
.quick-brew-card:hover {
  box-shadow: 0 8px 32px color-mix(in srgb, var(--ca-accent) 50%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.quick-brew-card:active { transform: scale(0.98); }
.quick-brew-card .qbc-title {
  font-size: 18px; font-weight: 700; color: var(--ca-on-accent);
  letter-spacing: -0.02em;
}

/* ── Section headers ── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.section-title {
  font-size: 11px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ca-text-light);
}

/* ── Utility ── */
.text-sm { font-size: 13px; }
.text-light { color: var(--ca-text-light); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }

/* ══════════════════════════════════════════
   Responsive — Tablet (≥600px)
   ══════════════════════════════════════════ */
@media (min-width: 600px) {
  .app-wrap {
    max-width: 720px;
    padding: 0 24px;
    padding-top: calc(env(safe-area-inset-top) + 16px);
    padding-bottom: calc(var(--ca-nav-h) + env(safe-area-inset-bottom) + 80px);
  }
  .card { padding: 18px; }
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .modal-sheet {
    max-width: 560px;
    margin: 0 auto;
    border-radius: 22px 22px 0 0;
    padding: 24px 24px 0;
  }
  .modal-actions {
    margin: 16px -24px 0;
    padding: 12px 24px calc(env(safe-area-inset-bottom) + 12px);
  }
  .quick-brew-card .qbc-title { font-size: 20px; }
  .stat-n { font-size: 32px; }
}

/* ══════════════════════════════════════════
   Responsive — Desktop (≥900px)
   ══════════════════════════════════════════ */
@media (min-width: 900px) {
  .app-wrap {
    max-width: 860px;
    padding: 0 32px;
    padding-top: 24px;
    padding-bottom: calc(var(--ca-nav-h) + 80px);
  }
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Center modal as a dialog on desktop */
  .modal-overlay {
    align-items: center;
  }
  .modal-sheet {
    max-width: 540px;
    max-height: 85vh;
    border-radius: 22px;
    margin: 0;
    padding: 24px 24px 0;
    border-bottom: 1px solid var(--ca-modal-border);
    transform: translateY(40px) scale(0.97);
  }
  .modal-overlay.open .modal-sheet {
    transform: translateY(0) scale(1);
  }
  .modal-handle { display: none; }
  .modal-actions {
    margin: 16px -24px 0;
    padding: 12px 24px 16px;
    border-radius: 0 0 22px 22px;
  }

  .nav-bar {
    max-width: 560px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 18px 18px 0 0;
    border-left: 1px solid var(--ca-nav-border);
    border-right: 1px solid var(--ca-nav-border);
  }
  .fab {
    right: calc(50% - 430px + 16px);
  }
}

/* ══════════════════════════════════════════
   Responsive — Wide Desktop (≥1200px)
   ══════════════════════════════════════════ */
@media (min-width: 1200px) {
  .app-wrap {
    max-width: 960px;
  }
}