/* Plant Rescue AI · Mobile app · cool minimal tokens */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,400;9..40,500;9..40,600;9..40,700&family=Instrument+Serif:ital@0;1&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Surface — cool, slightly desaturated */
  --bg:        #efeeea;          /* app background */
  --paper:     #f6f5f1;          /* primary surface */
  --card:      #ffffff;          /* card surface */
  --card-2:    #f9f8f4;          /* inset card */
  --line:      #e2e0d9;          /* hairline */
  --line-2:    #d0cdc4;          /* stronger hairline */

  /* Text */
  --ink:       #15171a;          /* heading + body */
  --ink-2:     #2c2e32;          /* secondary text */
  --muted:     #6a6e72;          /* labels, meta */
  --soft:      #a6a8aa;          /* placeholders */

  /* Accent — single deep moss */
  --accent:        oklch(48% 0.07 158);
  --accent-tint:   oklch(94% 0.025 158);
  --accent-ink:    oklch(28% 0.05 158);
  --on-accent:     #f6f5f1;

  /* Functional */
  --danger:        oklch(58% 0.13 28);
  --danger-tint:   oklch(94% 0.03 28);
  --warn:          oklch(72% 0.13 70);
  --warn-tint:     oklch(95% 0.04 70);
  --info:          oklch(60% 0.08 230);
  --info-tint:     oklch(94% 0.025 230);

  /* Type */
  --f-display: 'Instrument Serif', 'Source Serif Pro', Georgia, serif;
  --f-body:    'DM Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --f-mono:    'JetBrains Mono', ui-monospace, monospace;

  /* Radius */
  --r-1: 8px;
  --r-2: 12px;
  --r-3: 18px;
  --r-4: 24px;
  --r-pill: 999px;

  /* Shadow */
  --sh-1: 0 1px 0 rgba(20,22,26,0.04), 0 2px 8px -2px rgba(20,22,26,0.06);
  --sh-2: 0 2px 4px rgba(20,22,26,0.04), 0 14px 36px -6px rgba(20,22,26,0.08);
}

.lf-screen {
  font-family: var(--f-body);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.35;
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'ss01', 'cv11';
  letter-spacing: -0.01em;
}

.lf-display {
  font-family: var(--f-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  font-style: italic;
}

.lf-mono {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.lf-num {
  font-feature-settings: 'tnum';
}

/* Card */
.lf-card {
  background: var(--card);
  border-radius: var(--r-3);
  border: 1px solid var(--line);
}
.lf-card-inset { background: var(--card-2); border: 1px solid var(--line); }

/* Pill */
.lf-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--card);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.lf-pill-accent { background: var(--accent); color: var(--on-accent); border-color: transparent; }
.lf-pill-tint { background: var(--accent-tint); color: var(--accent-ink); border-color: transparent; }
.lf-pill-soft { background: var(--card-2); border-color: transparent; color: var(--muted); }
.lf-pill-danger { background: var(--danger-tint); color: var(--danger); border-color: transparent; }
.lf-pill-warn { background: var(--warn-tint); color: oklch(40% 0.13 70); border-color: transparent; }

/* Button */
.lf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 18px;
  border-radius: var(--r-pill);
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 15px;
  border: 0;
  cursor: pointer;
  letter-spacing: -0.005em;
}
.lf-btn-primary { background: var(--ink); color: var(--paper); }
.lf-btn-accent  { background: var(--accent); color: var(--on-accent); }
.lf-btn-ghost   { background: transparent; border: 1px solid var(--line-2); color: var(--ink); }
.lf-btn-soft    { background: var(--card-2); color: var(--ink); }

/* Divider */
.lf-divider {
  height: 1px;
  background: var(--line);
  border: 0;
}

/* Icon-circle */
.lf-iconbtn {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--line);
  display: grid; place-items: center;
  color: var(--ink);
  cursor: pointer;
}
.lf-iconbtn-soft { background: var(--card-2); border-color: transparent; }
.lf-iconbtn-ink  { background: var(--ink); color: var(--paper); border-color: transparent; }

/* Plant photo placeholder — sophisticated gradient suggesting foliage */
.lf-plant {
  background:
    radial-gradient(ellipse 65% 50% at 40% 70%, oklch(56% 0.075 158 / 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 55% 45% at 65% 45%, oklch(62% 0.06 145 / 0.45) 0%, transparent 65%),
    radial-gradient(ellipse 40% 35% at 30% 35%, oklch(70% 0.05 130 / 0.35) 0%, transparent 70%),
    linear-gradient(170deg, oklch(94% 0.012 160) 0%, oklch(86% 0.025 165) 60%, oklch(72% 0.045 170) 100%);
  position: relative;
}
.lf-plant::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 45% 65%, oklch(40% 0.08 160 / 0.25) 0%, transparent 18%),
    radial-gradient(circle at 38% 50%, oklch(38% 0.08 160 / 0.2) 0%, transparent 16%);
  pointer-events: none;
}
.lf-plant-warm {
  background:
    radial-gradient(ellipse 60% 50% at 50% 60%, oklch(70% 0.12 90 / 0.5) 0%, transparent 65%),
    linear-gradient(170deg, oklch(94% 0.015 90) 0%, oklch(80% 0.05 80) 100%);
}
.lf-plant-soil {
  background: linear-gradient(170deg, oklch(50% 0.05 60) 0%, oklch(32% 0.04 50) 100%);
}

/* Ambient AI insight card */
.lf-ai-card {
  background: linear-gradient(135deg, var(--accent-tint) 0%, var(--card) 80%);
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--line));
  border-radius: var(--r-3);
}

/* Tab bar (iOS feel; Android variant overrides) */
.lf-tabbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  padding: 8px 12px 8px;
  background: var(--paper);
  border-top: 1px solid var(--line);
  position: relative;
}
.lf-tab {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-size: 10px; font-weight: 500; color: var(--muted);
  padding: 6px 10px;
}
.lf-tab.active { color: var(--ink); }

/* Big FAB */
.lf-fab {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  display: grid; place-items: center;
  box-shadow: 0 6px 20px -4px rgba(20,22,26,0.4);
}

/* progress dots */
.lf-progress {
  display: flex; gap: 4px;
}
.lf-progress > span {
  flex: 1; height: 3px; border-radius: 4px; background: var(--line-2);
}
.lf-progress > span.active { background: var(--ink); }
.lf-progress > span.done   { background: var(--accent); }

/* List row */
.lf-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
}
.lf-row:last-child { border-bottom: 0; }

/* Linear meter */
.lf-meter {
  height: 6px; border-radius: 999px;
  background: var(--card-2);
  overflow: hidden;
  position: relative;
}
.lf-meter > div { height: 100%; border-radius: inherit; }

/* Status dot */
.lf-dot {
  width: 6px; height: 6px; border-radius: 50%; display: inline-block;
}

/* Tag badge */
.lf-tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px; border-radius: 4px;
  background: var(--card-2);
  font-family: var(--f-mono);
  font-size: 10px; letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Sticky pinned (date label) */
.lf-stamp {
  position: absolute;
  font-family: var(--f-mono); font-size: 9.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
}

/* Confidence chip */
.lf-conf {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent-ink);
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  font-weight: 600;
}
.lf-conf-low { background: var(--warn-tint); color: oklch(40% 0.13 70); }

/* ─── AG TIER badge ──────────────────────────────────────────────────── */
.lf-ag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 7px; border-radius: 999px;
  background: var(--accent); color: var(--on-accent);
  font-family: var(--f-mono);
  font-size: 9.5px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
}

/* warmer tone for crop/outdoor — re-uses existing warm tint var */
.lf-amber-card {
  background: linear-gradient(135deg, var(--warn-tint) 0%, var(--card) 80%);
  border: 1px solid color-mix(in srgb, var(--warn) 22%, var(--line));
  border-radius: var(--r-3);
}

/* informational blue-tinted card */
.lf-info-card {
  background: linear-gradient(135deg, var(--info-tint) 0%, var(--card) 80%);
  border: 1px solid color-mix(in srgb, var(--info) 18%, var(--line));
  border-radius: var(--r-3);
}

/* Scrollbar hide for inner scroll regions */
.lf-screen *::-webkit-scrollbar { display: none; }
.lf-screen *                    { scrollbar-width: none; }

/* ─── Dark mode ───────────────────────────────────────────────────────── */
.lf-dark {
  --bg:     #0e0f10;
  --paper:  #131416;
  --card:   #1c1d20;
  --card-2: #232427;
  --line:   #2b2d31;
  --line-2: #3a3d42;

  --ink:    #ece9e0;
  --ink-2:  #c8c4b8;
  --muted:  #8a8780;
  --soft:   #555248;

  --accent:      oklch(72% 0.09 158);
  --accent-tint: oklch(28% 0.045 158);
  --accent-ink:  oklch(88% 0.07 158);
  --on-accent:   #131416;

  --danger:      oklch(72% 0.13 28);
  --danger-tint: oklch(28% 0.06 28);
  --warn:        oklch(78% 0.13 70);
  --warn-tint:   oklch(28% 0.06 70);
  --info:        oklch(72% 0.08 230);
  --info-tint:   oklch(28% 0.05 230);

  --sh-1: 0 1px 0 rgba(0,0,0,0.4), 0 2px 8px -2px rgba(0,0,0,0.5);
  --sh-2: 0 2px 4px rgba(0,0,0,0.4), 0 14px 36px -6px rgba(0,0,0,0.6);

  background: var(--paper);
  color: var(--ink);
}

/* Plant photo recolours subtly for dark mode */
.lf-dark .lf-plant {
  background:
    radial-gradient(ellipse 65% 50% at 40% 70%, oklch(55% 0.09 158 / 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 55% 45% at 65% 45%, oklch(58% 0.08 145 / 0.45) 0%, transparent 65%),
    radial-gradient(ellipse 40% 35% at 30% 35%, oklch(64% 0.06 130 / 0.35) 0%, transparent 70%),
    linear-gradient(170deg, oklch(28% 0.025 160) 0%, oklch(22% 0.035 165) 60%, oklch(18% 0.045 170) 100%);
}
.lf-dark .lf-plant-warm {
  background:
    radial-gradient(ellipse 60% 50% at 50% 60%, oklch(68% 0.13 90 / 0.55) 0%, transparent 65%),
    linear-gradient(170deg, oklch(26% 0.04 90) 0%, oklch(20% 0.05 80) 100%);
}

.lf-dark .lf-ai-card {
  background: linear-gradient(135deg, var(--accent-tint) 0%, var(--card) 80%);
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
}