/* ============================================================
   VeloPSI v3 — styles.css
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@300;500;700;900&family=DM+Mono:wght@300;400;500&display=swap');

/* ── Tokens ─────────────────────────────────────────── */
:root {
  --bg:          #080E17;
  --bg-card:     #0D1825;
  --bg-input:    #111D2E;
  --bg-inset:    #0A1220;
  --border:      #1A2E45;
  --border-hi:   #1E4066;
  --txt:         #C8D8EA;
  --txt-dim:     #708CAC;
  --txt-label:   #7BA4C8;
  --accent:      #0EA5E9;
  --accent-glow: rgba(14,165,233,0.18);
  --amber:       #F59E0B;
  --green:       #22C55E;
  --red:         #EF4444;
  --red-glow:    rgba(239,68,68,0.2);
  --warn-bg:     #1A1000;
  --warn-border: #78350F;
  --warn-txt:    #FCD34D;
  --radius:      10px;
  --radius-lg:   16px;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.4);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:        #F0F4F8;
    --bg-card:   #FFFFFF;
    --bg-input:  #F4F7FB;
    --bg-inset:  #E4EBF5;
    --border:    #C8D8E8;
    --border-hi: #90B0D0;
    --txt:       #1A2C3D;
    --txt-dim:   #6A8AA8;
    --txt-label: #3A6A9A;
    --accent:    #0284C7;
    --accent-glow: rgba(2,132,199,0.12);
    --amber:     #D97706;
    --green:     #16A34A;
    --red:       #DC2626;
    --red-glow:  rgba(220,38,38,0.12);
    --warn-bg:   #FFFBEB;
    --warn-border:#FDE68A;
    --warn-txt:  #92400E;
    --shadow-card: 0 2px 8px rgba(0,40,80,0.07);
  }
}

/* ── Reset ───────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{font-size:15px;-webkit-text-size-adjust:100%;}
body{font-family:'DM Mono',monospace;background:var(--bg);color:var(--txt);min-height:100dvh;line-height:1.5;overflow-x:hidden;
  /* iOS safe area — prevents content clipping under notch/home indicator in PWA standalone mode */
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
  padding-left:env(safe-area-inset-left,0px);
  padding-right:env(safe-area-inset-right,0px);
}

/* ── Layout ─────────────────────────────────────────── */
#app{max-width:520px;margin:0 auto;padding:0 0 80px;}

/* ── Skip link ───────────────────────────────────────── */
.skip-link{position:absolute;top:-40px;left:0;background:var(--accent);color:#fff;padding:8px 14px;font-size:0.85rem;border-radius:0 0 8px 0;z-index:1000;text-decoration:none;transition:top 0.15s;}
.skip-link:focus{top:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ── Header ─────────────────────────────────────────── */
.site-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px 12px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:100;}
.site-logo{display:flex;align-items:center;gap:8px;}
.logo-icon{border-radius:7px;flex-shrink:0;}
.logo-mark{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:1.5rem;letter-spacing:-0.02em;color:var(--txt);line-height:1;}
.logo-mark .logo-psi{color:var(--accent);}
.logo-sub{font-size:0.62rem;color:var(--txt-dim);letter-spacing:0.12em;text-transform:uppercase;}
.unit-select{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--txt-dim);font-family:'DM Mono',monospace;font-size:0.78rem;padding:6px 10px;cursor:pointer;}
.unit-select:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ── Tabs ────────────────────────────────────────────── */
.tabs{display:flex;padding:0 20px;gap:4px;border-bottom:1px solid var(--border);}
.tab-btn{font-family:'Barlow Condensed',sans-serif;font-size:0.88rem;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;color:var(--txt-dim);background:none;border:none;border-bottom:2px solid transparent;padding:10px 14px 12px;cursor:pointer;transition:all 0.15s;white-space:nowrap;}
.tab-btn:hover{color:var(--txt);}
.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);}
.tab-btn:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}

/* ── Panels ─────────────────────────────────────────── */
.panel{display:none;padding:20px 20px 0;}
.panel.active{display:block;}

/* ── Section labels ──────────────────────────────────── */
.section-label{font-family:'Barlow Condensed',sans-serif;font-size:0.7rem;font-weight:700;letter-spacing:0.15em;text-transform:uppercase;color:var(--txt-dim);margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.section-label::after{content:'';flex:1;height:1px;background:var(--border);}

/* ── Cards ───────────────────────────────────────────── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;margin-bottom:14px;box-shadow:var(--shadow-card);}

/* ── Fields ──────────────────────────────────────────── */
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px;}
.field{display:flex;flex-direction:column;gap:4px;}
.field label{font-size:0.7rem;color:var(--txt-label);letter-spacing:0.08em;text-transform:uppercase;}
.field input[type="number"],.field select{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--txt);font-family:'DM Mono',monospace;font-size:0.88rem;padding:9px 11px;width:100%;transition:border-color 0.15s,box-shadow 0.15s;appearance:none;-webkit-appearance:none;}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);}
.field select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A7A9A' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 11px center;padding-right:30px;}
.input-with-unit{position:relative;}
.input-with-unit input{padding-right:44px;}
.input-unit{position:absolute;right:11px;top:50%;transform:translateY(-50%);font-size:0.7rem;color:var(--txt-dim);pointer-events:none;}
.field-hint{font-size:0.68rem;color:var(--txt-dim);line-height:1.4;min-height:1em;}

/* ── Width unit toggle ───────────────────────────────── */
.width-unit-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px;}
.width-unit-label{font-size:0.7rem;color:var(--txt-label);letter-spacing:0.08em;text-transform:uppercase;}
.seg-control{display:flex;background:var(--bg-inset);border:1px solid var(--border);border-radius:8px;padding:2px;gap:2px;}
.seg-btn{font-family:'DM Mono',monospace;font-size:0.75rem;padding:5px 14px;border:none;border-radius:6px;background:transparent;color:var(--txt-dim);cursor:pointer;transition:all 0.15s;}
.seg-btn.active,[aria-checked="true"].seg-btn{background:var(--bg-card);color:var(--accent);box-shadow:0 1px 4px rgba(0,0,0,0.3);}
.seg-btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px;}

/* ── Terrain category chips ──────────────────────────── */
.chip-fieldset{border:none;padding:0;margin:0 0 4px;}
.preset-chips{display:flex;flex-wrap:wrap;gap:6px;}
.cat-chip{font-family:'Barlow Condensed',sans-serif;font-size:0.82rem;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;padding:6px 16px;border-radius:20px;border:1px solid var(--border);background:var(--bg-input);color:var(--txt-dim);cursor:pointer;transition:all 0.15s;}
.cat-chip:hover,.cat-chip.active{border-color:var(--accent);color:var(--accent);background:var(--accent-glow);}
.cat-chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ── Terrain mix ─────────────────────────────────────── */
.terrain-mix-labels{display:flex;justify-content:space-between;font-size:0.7rem;color:var(--txt-dim);margin-bottom:6px;}
.pct{color:var(--accent);}
input[type="range"]{-webkit-appearance:none;appearance:none;width:100%;height:6px;background:var(--bg-inset);border-radius:3px;outline:none;border:1px solid var(--border);}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent);border:2px solid var(--bg-card);cursor:pointer;}
input[type="range"]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--accent);border:2px solid var(--bg-card);cursor:pointer;}

/* ── Temperature row ─────────────────────────────────── */
.temp-row{display:grid;grid-template-columns:1fr 20px 1fr;gap:8px;align-items:end;}
.temp-arrow{text-align:center;color:var(--txt-dim);font-size:1rem;padding-bottom:9px;}
.ride-temp-wrap{position:relative;}
.ride-temp-wrap input{padding-right:68px;}
.weather-btn{position:absolute;right:36px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--txt-dim);cursor:pointer;padding:6px;border-radius:6px;display:flex;align-items:center;transition:color 0.15s;}
.weather-btn:hover{color:var(--accent);}
.weather-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.weather-btn.spinning svg{animation:spin 1s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ── Advanced section ────────────────────────────────── */
.advanced-section{margin-bottom:6px;}
.adv-toggle{width:100%;background:none;border:1px dashed var(--border);border-radius:var(--radius);color:var(--txt-dim);font-family:'Barlow Condensed',sans-serif;font-size:0.82rem;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;padding:8px;cursor:pointer;transition:all 0.15s;text-align:center;}
.adv-toggle:hover{border-color:var(--accent);color:var(--accent);}
.adv-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.advanced-box{display:none;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;margin-top:8px;}
.advanced-box.open{display:block;}
.dist-visual{display:flex;align-items:center;gap:10px;}
.dist-bar{flex:1;height:8px;background:var(--bg-inset);border-radius:4px;overflow:hidden;border:1px solid var(--border);}
.dist-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--amber));border-radius:4px;width:41%;transition:width 0.3s;}
.dist-label{font-size:0.72rem;color:var(--txt-dim);white-space:nowrap;}
.dist-label span{color:var(--txt);font-weight:500;}

/* ── Calc button ─────────────────────────────────────── */
.calc-btn{width:100%;padding:15px;background:#0077B6;color:#fff;font-family:'Barlow Condensed',sans-serif;font-size:1.1rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;border:none;border-radius:var(--radius-lg);cursor:pointer;margin:16px 0 6px;transition:all 0.2s;box-shadow:0 4px 20px rgba(14,165,233,0.3);}
.calc-btn:hover{background:#0066A3;box-shadow:0 4px 28px rgba(14,165,233,0.5);transform:translateY(-1px);}
.calc-btn:active{transform:translateY(0);}
.calc-btn:focus-visible{outline:2px solid #fff;outline-offset:3px;}

/* ── Results ─────────────────────────────────────────── */
#results-panel{display:none;}
#results-panel.visible{display:block;}

.hookless-warn{background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:var(--radius);padding:12px 14px;margin-bottom:14px;display:none;gap:10px;align-items:flex-start;}
.hookless-warn.visible{display:flex;}
.warn-icon{font-size:1.1rem;flex-shrink:0;margin-top:1px;}
.warn-text{font-size:0.78rem;color:var(--warn-txt);line-height:1.5;}
.warn-level{display:block;margin-bottom:3px;}
.warn-body{display:block;}

/* ── Gauges ──────────────────────────────────────────── */
.gauges-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px;}
.gauge-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:14px 12px 12px;text-align:center;position:relative;overflow:hidden;}
.gauge-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--accent);opacity:0.6;}
.gauge-title{font-family:'Barlow Condensed',sans-serif;font-size:0.72rem;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;color:var(--txt-dim);margin-bottom:6px;}
.gauge-svg-wrap{display:flex;justify-content:center;margin-bottom:4px;}
.gauge-svg-wrap svg{width:120px;height:105px;}
.psi-readout{font-family:'Barlow Condensed',sans-serif;font-size:2.4rem;font-weight:900;line-height:1;color:var(--accent);letter-spacing:-0.02em;}
.psi-readout.warn-psi{color:var(--amber);}
.psi-readout.danger-psi{color:var(--red);}
.psi-unit{font-size:0.72rem;color:var(--txt-dim);letter-spacing:0.04em;margin-top:2px;}
.range-bar{margin-top:10px;}
.range-track{height:6px;border-radius:3px;background:linear-gradient(90deg,var(--accent),var(--green) 40%,var(--amber) 75%,var(--red) 100%);position:relative;}
.range-marker{position:absolute;top:-4px;width:3px;height:14px;background:#fff;border-radius:2px;transform:translateX(-50%);box-shadow:0 0 6px rgba(255,255,255,0.6);transition:left 0.5s cubic-bezier(0.34,1.2,0.64,1);}
.range-labels{display:flex;justify-content:space-between;margin-top:4px;font-size:0.62rem;color:var(--txt-dim);}
.range-zone{font-size:0.68rem;margin-top:6px;padding:3px 8px;border-radius:10px;display:inline-block;}
.zone-soft{background:rgba(14,165,233,0.12);color:var(--accent);}
.zone-optimal{background:rgba(34,197,94,0.12);color:var(--green);}
.zone-firm{background:rgba(245,158,11,0.12);color:var(--amber);}
.zone-over{background:var(--red-glow);color:var(--red);}

/* ── Notes ───────────────────────────────────────────── */
.notes-strip{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;font-size:0.78rem;line-height:1.6;color:var(--txt-dim);}
.note-row{display:flex;align-items:flex-start;gap:8px;padding:3px 0;}
.note-icon{flex-shrink:0;font-size:0.85rem;}
.note-text{color:var(--txt);}
.note-text .hl{color:var(--accent);font-weight:500;}
.note-text .warn-hl{color:var(--amber);}

/* ── Save profile ────────────────────────────────────── */
.save-profile-row{display:flex;gap:8px;}
.save-profile-row input{flex:1;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--txt);font-family:'DM Mono',monospace;font-size:0.85rem;padding:9px 12px;}
.save-profile-row input:focus{outline:none;border-color:var(--accent);}
.save-btn{background:var(--bg-input);border:1px solid var(--border);color:var(--accent);font-family:'Barlow Condensed',sans-serif;font-size:0.85rem;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;padding:9px 14px;border-radius:var(--radius);cursor:pointer;transition:all 0.15s;white-space:nowrap;}
.save-btn:hover{background:var(--accent-glow);border-color:var(--accent);}

/* ── Profiles ────────────────────────────────────────── */
.profile-list-wrap{padding:0 20px;}
#profile-list{display:flex;flex-direction:column;gap:8px;margin-bottom:8px;}
.profile-item{display:flex;align-items:center;gap:10px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;cursor:pointer;transition:all 0.15s;}
.profile-item:hover,.profile-item:focus-visible{border-color:var(--accent);outline:none;}
.profile-item.active-profile{border-color:var(--accent);background:var(--accent-glow);}
.profile-icon{font-size:1.2rem;}
.profile-name{font-family:'Barlow Condensed',sans-serif;font-size:1rem;font-weight:600;}
.profile-meta{font-size:0.7rem;color:var(--txt-dim);}
.profile-delete{background:none;border:none;color:var(--txt-dim);cursor:pointer;font-size:0.9rem;padding:4px;border-radius:4px;transition:color 0.15s;margin-left:auto;}
.profile-delete:hover{color:var(--red);}
.profile-delete:focus-visible{outline:2px solid var(--accent);}
.empty-profiles{text-align:center;padding:30px 20px;color:var(--txt-dim);font-size:0.82rem;}
.empty-profiles .icon{font-size:2rem;display:block;margin-bottom:8px;opacity:0.4;}

/* ── Info / Guide ────────────────────────────────────── */
.info-section{margin-bottom:18px;}
.info-section h2{font-family:'Barlow Condensed',sans-serif;font-size:1.1rem;font-weight:700;color:var(--txt);margin-bottom:8px;}
.info-section h3{font-family:'Barlow Condensed',sans-serif;font-size:1rem;font-weight:700;color:var(--txt);margin-bottom:6px;}
.info-section p{font-size:0.8rem;color:var(--txt-dim);line-height:1.65;}
.info-table{width:100%;border-collapse:collapse;font-size:0.78rem;margin-top:8px;}
.info-table th{text-align:left;color:var(--txt-label);font-size:0.68rem;letter-spacing:0.08em;text-transform:uppercase;padding:6px 8px;border-bottom:1px solid var(--border);}
.info-table td{padding:7px 8px;border-bottom:1px solid var(--border);color:var(--txt-dim);}
.info-table td:first-child{color:var(--txt);}

/* ── Toast ───────────────────────────────────────────── */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:10px 18px;font-size:0.8rem;color:var(--txt);opacity:0;transition:all 0.25s;pointer-events:none;white-space:nowrap;z-index:999;box-shadow:0 4px 24px rgba(0,0,0,0.5);}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ── Focus global ────────────────────────────────────── */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

/* ── High contrast ───────────────────────────────────── */
@media (forced-colors:active){
  .range-track{background:ButtonFace;border:1px solid ButtonText;}
  .calc-btn{background:Highlight;color:HighlightText;}
  .hookless-warn{border:2px solid ButtonText;}
}

/* ── Mobile ──────────────────────────────────────────── */
@media (max-width:380px){
  .psi-readout{font-size:2rem;}
  .field-row{grid-template-columns:1fr;}
}

/* ── Hide number input spinners ──────────────────────── */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance:none; margin:0; }
input[type="number"] { -moz-appearance:textfield; appearance:textfield; }

/* ── Location button ─────────────────────────────────── */
.location-btn {
  display: inline-block;
  margin-top: 10px;
  background: none;
  border: none;
  color: var(--accent);
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.15s;
}
.location-btn:hover { opacity: 0.75; }
.location-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.location-btn.spinning { opacity: 0.5; cursor: wait; }

/* ── Fork wrap — shown by JS ─────────────────────────── */
#fork-wrap { display: none; }
#fork-wrap.visible { display: block; }

/* ── Weight input row ────────────────────────────────── */
.weight-input-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.weight-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--txt);
  font-family: 'DM Mono', monospace;
  font-size: 0.88rem;
  padding: 9px 11px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.weight-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.weight-unit-seg {
  flex-shrink: 0;
}

/* ── Cookie consent banner ───────────────────────────── */
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  z-index: 9999;
  padding: 14px 20px;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.15);
}
.cookie-inner {
  max-width: 520px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cookie-text {
  flex: 1;
  font-size: 0.75rem;
  color: var(--txt-dim);
  line-height: 1.5;
  min-width: 200px;
}
.cookie-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.cookie-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
.cookie-btn {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.cookie-decline {
  background: var(--bg-input);
  color: var(--txt-dim);
}
.cookie-decline:hover { border-color: var(--txt-dim); }
.cookie-accept {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.cookie-accept:hover { background: #0077B6; }
.cookie-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── Site footer ─────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 20px 20px 32px;
  font-size: 0.72rem;
  color: var(--txt-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-link {
  color: var(--txt-dim);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-link:hover { color: var(--accent); }
.footer-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
.footer-sep { opacity: 0.4; }
.footer-copy { opacity: 0.6; }