/* ═══════════════════════════════════════════════
   Equalza — Color Picker  v1.0.0
   Accent: teal (#0d9488)
   ═══════════════════════════════════════════════ */

:root{
  --bg:#f5f6f8;--surface:#fff;--border:#e2e5ea;--border2:#c8cdd6;
  --teal:#0d9488;--teal-h:#0f766e;--teal-light:#f0fdfa;--teal-mid:#99f6e4;
  --text:#111827;--text2:#4b5563;--text3:#9ca3af;
  --green:#059669;--green-bg:#ecfdf5;
  --red:#dc2626;--red-bg:#fef2f2;
  --sh:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.05);
  --r:8px;--rl:12px;--rxl:16px;
}

/* ── Tool container ── */
.cp-tool{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);max-width:720px;margin:0 auto}

/* ── Tabs ── */
.cp-tabs{display:flex;gap:4px;border-bottom:2px solid var(--border);padding-bottom:0;margin-bottom:24px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.cp-tab{padding:10px 16px;border:none;background:none;font-size:14px;font-weight:500;color:var(--text2);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;white-space:nowrap;border-radius:var(--r) var(--r) 0 0;transition:all .15s}
.cp-tab:hover{color:var(--text);background:var(--teal-light)}
.cp-tab-active{color:var(--teal);border-bottom-color:var(--teal);font-weight:600}

/* ── Panes ── */
.cp-pane{display:none}
.cp-pane-active{display:block}

/* ── Buttons ── */
.cp-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:var(--r);font-size:14px;font-weight:600;cursor:pointer;border:none;transition:all .15s}
.cp-btn-primary{background:var(--teal);color:#fff}
.cp-btn-primary:hover{background:var(--teal-h)}
.cp-btn-ghost{background:var(--teal-light);color:var(--teal);border:1px solid var(--teal-mid)}
.cp-btn-ghost:hover{background:var(--teal-mid)}
.cp-btn-sm{padding:6px 12px;font-size:13px}

/* ══════════════════════════════════════
   PICKER TAB
   ══════════════════════════════════════ */
.cp-picker-layout{display:flex;gap:16px;margin-bottom:24px;align-items:flex-start}

/* Color area */
.cp-area-wrap{position:relative;border-radius:var(--r);overflow:hidden;cursor:crosshair;border:1px solid var(--border);flex-shrink:0}
.cp-area{display:block;width:280px;height:200px}
.cp-area-cursor{position:absolute;width:16px;height:16px;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px rgba(0,0,0,.3),inset 0 0 0 1px rgba(0,0,0,.2);transform:translate(-50%,-50%);pointer-events:none;top:50%;left:50%}

/* Hue bar */
.cp-slider-wrap{position:relative;border-radius:var(--r);overflow:hidden;cursor:pointer;border:1px solid var(--border);flex-shrink:0}
.cp-hue-bar{display:block;width:24px;height:200px}
.cp-hue-cursor{position:absolute;left:0;width:24px;height:6px;border:2px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.3);border-radius:3px;transform:translateY(-50%);pointer-events:none;top:0}

/* Preview column */
.cp-preview-col{display:flex;flex-direction:column;gap:8px;align-items:center;min-width:80px}
.cp-swatch{width:72px;height:72px;border-radius:var(--rl);border:1px solid var(--border);box-shadow:var(--sh)}
.cp-named{font-size:12px;color:var(--text3);text-align:center;max-width:80px;word-wrap:break-word}

/* Format rows */
.cp-formats{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
.cp-fmt-row{display:flex;align-items:center;gap:8px}
.cp-fmt-label{width:48px;font-size:12px;font-weight:700;color:var(--text3);text-transform:uppercase;flex-shrink:0}
.cp-fmt-input{flex:1;padding:8px 12px;border:1px solid var(--border);border-radius:var(--r);font-family:'SFMono-Regular',Consolas,monospace;font-size:13px;color:var(--text);background:var(--surface)}
.cp-fmt-input:focus{outline:none;border-color:var(--teal)}
.cp-copy-btn{padding:6px 12px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface);font-size:12px;font-weight:600;color:var(--teal);cursor:pointer;transition:all .15s;white-space:nowrap}
.cp-copy-btn:hover{background:var(--teal-light);border-color:var(--teal)}

/* Shades & Tints */
.cp-shades-section{margin-top:8px}
.cp-section-title{font-size:13px;font-weight:600;color:var(--text2);margin:0 0 8px}
.cp-shade-strip{display:flex;gap:2px;margin-bottom:16px}
.cp-shade-chip{flex:1;height:36px;border-radius:4px;cursor:pointer;transition:transform .1s;min-width:0}
.cp-shade-chip:hover{transform:scaleY(1.15);z-index:1}

/* ══════════════════════════════════════
   PALETTE TAB
   ══════════════════════════════════════ */
.cp-harmony-select{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.cp-harmony-select label{font-size:14px;font-weight:600;color:var(--text2)}
.cp-harmony-select select{padding:8px 12px;border:1px solid var(--border);border-radius:var(--r);font-size:14px;background:var(--surface);color:var(--text);cursor:pointer}

.cp-palette-grid{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.cp-palette-card{display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;transition:transform .15s}
.cp-palette-card:hover{transform:translateY(-2px)}
.cp-palette-swatch{width:80px;height:80px;border-radius:var(--rl);border:1px solid var(--border);box-shadow:var(--sh)}
.cp-palette-hex{font-size:12px;font-family:monospace;color:var(--text2)}

.cp-export-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.cp-export-btns{display:flex;gap:6px;flex-wrap:wrap}
.cp-export-output{background:#1e293b;color:#e2e8f0;padding:16px;border-radius:var(--r);font-size:13px;font-family:'SFMono-Regular',Consolas,monospace;overflow-x:auto;white-space:pre;line-height:1.6;margin:0}

/* ══════════════════════════════════════
   CONTRAST TAB
   ══════════════════════════════════════ */
.cp-contrast-inputs{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.cp-contrast-color{display:flex;flex-direction:column;gap:6px;flex:1;min-width:140px}
.cp-contrast-color label{font-size:13px;font-weight:600;color:var(--text2)}
.cp-contrast-pick{display:flex;gap:8px;align-items:center}
.cp-contrast-pick input[type="color"]{width:40px;height:36px;border:1px solid var(--border);border-radius:var(--r);cursor:pointer;padding:2px}
.cp-contrast-pick input[type="text"]{flex:1;padding:8px;border:1px solid var(--border);border-radius:var(--r);font-family:monospace;font-size:13px}
.cp-swap-btn{align-self:flex-end;margin-bottom:2px}

.cp-contrast-preview{padding:24px;border-radius:var(--rl);border:1px solid var(--border);margin-bottom:20px;text-align:center}
.cp-preview-normal{font-size:16px;margin:0 0 8px}
.cp-preview-large{font-size:24px;font-weight:700;margin:0}

.cp-contrast-result{background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);padding:20px}
.cp-ratio-display{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.cp-ratio-display span{font-size:14px;color:var(--text2)}
.cp-ratio-display strong{font-size:28px;color:var(--text)}

.cp-wcag-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.cp-wcag-item{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:var(--bg);border-radius:var(--r)}
.cp-wcag-item span:first-child{font-size:13px;color:var(--text2)}
.cp-wcag-badge{padding:3px 10px;border-radius:4px;font-size:12px;font-weight:700}
.cp-pass{background:var(--green-bg);color:var(--green)}
.cp-fail{background:var(--red-bg);color:var(--red)}

/* ══════════════════════════════════════
   GRADIENT TAB
   ══════════════════════════════════════ */
.cp-grad-controls{display:flex;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.cp-grad-type,.cp-grad-angle{display:flex;align-items:center;gap:8px}
.cp-grad-type label,.cp-grad-angle label{font-size:13px;font-weight:600;color:var(--text2)}
.cp-grad-type select{padding:8px;border:1px solid var(--border);border-radius:var(--r);font-size:14px}
.cp-grad-angle input[type="range"]{width:120px;accent-color:var(--teal)}
.cp-grad-angle span{font-size:13px;color:var(--text2);min-width:36px}

.cp-grad-preview{height:120px;border-radius:var(--rl);border:1px solid var(--border);margin-bottom:16px;box-shadow:var(--sh)}

.cp-grad-stops-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.cp-grad-stops-header span{font-size:14px;font-weight:600;color:var(--text2)}
.cp-grad-stops{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.cp-grad-stop-row{display:flex;align-items:center;gap:8px}
.cp-grad-stop-row input[type="color"]{width:36px;height:32px;border:1px solid var(--border);border-radius:var(--r);cursor:pointer;padding:2px}
.cp-grad-stop-row input[type="range"]{flex:1;accent-color:var(--teal)}
.cp-grad-stop-row span{font-size:12px;color:var(--text3);min-width:32px}
.cp-grad-del{width:28px;height:28px;border:1px solid var(--border);border-radius:var(--r);background:var(--surface);color:var(--red);cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center}
.cp-grad-del:hover{background:var(--red-bg)}

.cp-grad-css-wrap{margin-top:8px}
.cp-grad-css-wrap label{font-size:13px;font-weight:600;color:var(--text2);display:block;margin-bottom:8px}
.cp-grad-css-row{display:flex;gap:8px;align-items:flex-start}
.cp-grad-css{flex:1;background:#1e293b;color:#e2e8f0;padding:12px;border-radius:var(--r);font-size:13px;font-family:'SFMono-Regular',Consolas,monospace;word-break:break-all;line-height:1.5}

/* ══════════════════════════════════════
   IMAGE EXTRACTION TAB
   ══════════════════════════════════════ */
.cp-dropzone{border:2px dashed var(--border2);border-radius:var(--rxl);padding:48px 24px;text-align:center;cursor:pointer;transition:all .2s}
.cp-dropzone:hover,.cp-dz-hover{border-color:var(--teal);background:var(--teal-light)}
.cp-dz-icon{font-size:40px;margin-bottom:8px}
.cp-dz-title{font-size:16px;font-weight:600;color:var(--text);margin:0 0 4px}
.cp-dz-sub{font-size:13px;color:var(--text3);margin:0 0 16px}

.cp-extract-result{text-align:center}
.cp-extract-thumb{max-width:100%;max-height:200px;border-radius:var(--rl);border:1px solid var(--border);margin-bottom:16px}
.cp-extract-result h3{font-size:15px;color:var(--text2);margin:0 0 12px}
.cp-extract-palette{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.cp-extract-chip{display:flex;flex-direction:column;align-items:center;gap:4px;cursor:pointer;transition:transform .15s}
.cp-extract-chip:hover{transform:translateY(-2px)}
.cp-extract-color{width:56px;height:56px;border-radius:var(--r);border:1px solid var(--border);box-shadow:var(--sh)}
.cp-extract-chip span{font-size:11px;font-family:monospace;color:var(--text3)}
.cp-dominant-tag{background:var(--teal-light);color:var(--teal);padding:1px 6px;border-radius:3px;font-size:10px;font-weight:700;font-family:sans-serif}

.cp-note{font-size:12px;color:var(--text3);text-align:center;margin-top:20px;padding:12px;background:var(--teal-light);border-radius:var(--r)}

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media(max-width:640px){
  .cp-picker-layout{flex-wrap:wrap}
  .cp-area{width:100%!important;height:160px!important}
  .cp-area-wrap{width:100%}
  .cp-hue-bar{width:100%!important;height:24px!important}
  .cp-slider-wrap{width:100%}
  .cp-preview-col{flex-direction:row;width:100%;justify-content:center}
  .cp-palette-swatch{width:60px;height:60px}
  .cp-contrast-inputs{flex-direction:column}
  .cp-wcag-grid{grid-template-columns:1fr}
  .cp-tabs{gap:0}
  .cp-tab{padding:8px 10px;font-size:12px}
}

/* ── RTL ── */
[dir="rtl"] .cp-fmt-row{flex-direction:row-reverse}
[dir="rtl"] .cp-fmt-label{text-align:right}
[dir="rtl"] .cp-contrast-inputs{flex-direction:row-reverse}
[dir="rtl"] .cp-export-row{flex-direction:row-reverse}
[dir="rtl"] .cp-grad-css-row{flex-direction:row-reverse}