/* ============================================================
   TDEE Calculator — style.css
   ============================================================ */

:root{
  --bg:#0a0e16;
  --bg-2:#0f1420;
  --panel:rgba(255,255,255,0.03);
  --panel-border:rgba(255,255,255,0.08);
  --text:#eaf0ff;
  --muted:#8c95ad;
  --primary:#f97316;
  --primary-2:#ef4444;
  --accent:#22d3ee;
  --amber:#f59e0b;
  --green:#34d399;
  --danger:#f43f5e;
  --radius:18px;
  --shadow:0 20px 60px rgba(0,0,0,0.45);
}

*{margin:0;padding:0;box-sizing:border-box;}

html,body{height:100%;width:100%;}

body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  min-width:100vw;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  position:relative;
}

/* Ambient glows */
.bg-glow{position:fixed;border-radius:50%;filter:blur(130px);pointer-events:none;z-index:0;}
.bg-glow-1{width:600px;height:600px;background:radial-gradient(circle,rgba(249,115,22,0.2),transparent 70%);top:-200px;left:-150px;}
.bg-glow-2{width:520px;height:520px;background:radial-gradient(circle,rgba(34,211,238,0.14),transparent 70%);bottom:-160px;right:-120px;}
.bg-glow-3{width:400px;height:400px;background:radial-gradient(circle,rgba(239,68,68,0.12),transparent 70%);top:45%;right:-160px;}

.app{
  position:relative;z-index:1;
  width:100%;min-height:100vh;
  max-width:1500px;margin:0 auto;
  padding:26px clamp(18px,4vw,48px);
  display:flex;flex-direction:column;gap:24px;
}

/* ===== HEADER ===== */
.header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;}
.logo{display:flex;align-items:center;gap:14px;}
.logo-badge{
  width:50px;height:50px;border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(249,115,22,0.4);color:#fff;
}
.logo-badge svg{width:27px;height:27px;}
.logo-text h1{font-size:24px;font-weight:800;letter-spacing:-0.5px;}
.logo-text h1 span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.logo-text p{font-size:13px;color:var(--muted);margin-top:2px;}

.status-chip{
  display:flex;align-items:center;gap:8px;padding:8px 16px;
  border-radius:999px;background:var(--panel);border:1px solid var(--panel-border);
  font-size:13px;font-weight:500;
}
.status-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}

/* ===== TAGLINE ===== */
.tagline{text-align:center;padding:6px 0 2px;}
.tagline h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;letter-spacing:-1px;line-height:1.15;}
.tagline .grad{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.tagline p{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px;margin-left:auto;margin-right:auto;}

/* ===== DASHBOARD ===== */
.dashboard{display:grid;grid-template-columns:400px 1fr;gap:22px;flex:1;align-items:start;}

/* ===== PANEL ===== */
.panel{
  background:var(--panel);border:1px solid var(--panel-border);
  border-radius:var(--radius);padding:22px;
  backdrop-filter:blur(12px);
  display:flex;flex-direction:column;gap:16px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;}
.panel-head h3{font-size:15px;font-weight:700;letter-spacing:-0.2px;}
.panel-badge{font-size:11px;font-weight:700;letter-spacing:1px;padding:4px 10px;border-radius:6px;background:rgba(249,115,22,0.15);color:#fdba74;border:1px solid rgba(249,115,22,0.3);}
.panel-actions{display:flex;gap:8px;flex-wrap:wrap;}

/* ===== FORM ===== */
.field{display:flex;flex-direction:column;gap:9px;}
.field-label{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.field-label label{font-size:13px;font-weight:600;color:#cfd6ea;}
.field-value{font-size:13px;font-weight:700;color:var(--primary);font-family:'JetBrains Mono',monospace;}

.field-input{display:flex;align-items:center;background:rgba(0,0,0,0.3);border:1px solid var(--panel-border);border-radius:10px;overflow:hidden;transition:border 0.2s;}
.field-input:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(249,115,22,0.12);}
.field-input input{flex:1;background:transparent;border:none;outline:none;padding:12px 4px;color:var(--text);font-size:16px;font-weight:600;font-family:'JetBrains Mono',monospace;min-width:0;text-align:center;}
.field-input .suffix{padding:0 12px;color:var(--muted);font-weight:600;font-size:14px;}

/* Slider */
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;
  background:linear-gradient(to right,var(--primary-2) var(--fill,50%),rgba(255,255,255,0.1) var(--fill,50%));
  outline:none;cursor:pointer;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;
  background:#fff;border:3px solid var(--primary);cursor:pointer;
  box-shadow:0 2px 10px rgba(0,0,0,0.4);transition:transform 0.15s;
}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15);}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#fff;border:3px solid var(--primary);cursor:pointer;}
.range-marks{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:-3px;}

.divider{height:1px;background:var(--panel-border);margin:4px 0;}

/* Sex / unit / goal toggles */
.sex-toggle{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;}
.sex-toggle.two{grid-template-columns:1fr 1fr;}
.sex-btn{
  padding:10px 6px;border-radius:9px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,0.04);border:1px solid var(--panel-border);
  color:var(--muted);cursor:pointer;transition:all 0.2s;font-family:inherit;text-align:center;
}
.sex-btn:hover{color:var(--text);}
.sex-btn.active{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;border-color:transparent;box-shadow:0 4px 14px rgba(249,115,22,0.35);}

/* Activity list */
.activity-list{display:flex;flex-direction:column;gap:8px;}
.activity-item{
  display:flex;align-items:center;gap:10px;padding:12px 14px;
  background:rgba(0,0,0,0.2);border:1px solid var(--panel-border);border-radius:10px;
  cursor:pointer;transition:all 0.2s;
}
.activity-item:hover{border-color:rgba(255,255,255,0.2);}
.activity-item.active{border-color:var(--primary);background:rgba(249,115,22,0.08);}
.activity-item input{accent-color:var(--primary);width:16px;height:16px;}
.activity-item b{font-size:14px;display:block;}
.activity-item span{font-size:12px;color:var(--muted);}

/* Macro split */
.macro-split{display:flex;flex-direction:column;gap:12px;}
.split-row{display:grid;grid-template-columns:60px 1fr 44px;gap:10px;align-items:center;font-size:13px;font-weight:600;}
.split-row input{width:100%;}
.split-val{font-family:'JetBrains Mono',monospace;color:var(--primary);text-align:right;}
.split-warning{font-size:12px;color:var(--danger);font-weight:600;}

/* ===== BUTTONS ===== */
.btn{border:none;cursor:pointer;font-family:inherit;font-weight:600;font-size:14px;border-radius:10px;padding:12px 20px;transition:all 0.2s ease;display:inline-flex;align-items:center;gap:8px;justify-content:center;}
.btn:active{transform:scale(0.97);}
.btn-secondary{background:rgba(255,255,255,0.06);color:var(--text);border:1px solid var(--panel-border);}
.btn-secondary:hover{background:rgba(255,255,255,0.1);}
.btn-secondary svg{width:17px;height:17px;}

/* ===== RESULTS ===== */
.results{display:flex;flex-direction:column;gap:18px;}

.summary{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:16px;}
.summary-card{background:var(--panel);border:1px solid var(--panel-border);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden;}
.summary-card .sc-label{font-size:13px;color:var(--muted);font-weight:500;}
.summary-card .sc-value{font-size:clamp(26px,2.6vw,34px);font-weight:800;letter-spacing:-0.5px;font-family:'JetBrains Mono',monospace;}
.summary-card .sc-sub{font-size:12px;color:var(--muted);}
.summary-primary{background:linear-gradient(135deg,rgba(249,115,22,0.16),rgba(239,68,68,0.08));border-color:rgba(249,115,22,0.35);}
.summary-primary .sc-value{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.summary-primary::after{content:'';position:absolute;top:-40px;right:-40px;width:120px;height:120px;background:radial-gradient(circle,rgba(249,115,22,0.25),transparent 70%);border-radius:50%;}

/* Macro cards */
.macro-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.macro-card{border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:6px;border:1px solid var(--panel-border);position:relative;overflow:hidden;}
.macro-card .mc-label{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:0.5px;}
.macro-card .mc-value{font-size:24px;font-weight:800;font-family:'JetBrains Mono',monospace;}
.macro-card .mc-cal{font-size:11px;color:var(--muted);}
.macro-card.protein{background:rgba(244,114,182,0.08);border-color:rgba(244,114,182,0.3);}
.macro-card.protein .mc-value{color:#f472b6;}
.macro-card.carbs{background:rgba(251,191,36,0.08);border-color:rgba(251,191,36,0.3);}
.macro-card.carbs .mc-value{color:#fbbf24;}
.macro-card.fat{background:rgba(56,189,248,0.08);border-color:rgba(56,189,248,0.3);}
.macro-card.fat .mc-value{color:#38bdf8;}
.macro-card.fiber{background:rgba(163,230,53,0.06);border-color:rgba(163,230,53,0.25);}
.macro-card.fiber .mc-value{color:#a3e635;}

/* Detail grid */
.detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.detail-item{background:var(--panel);border:1px solid var(--panel-border);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:4px;}
.d-label{font-size:11px;color:var(--muted);font-weight:600;letter-spacing:0.3px;text-transform:uppercase;}
.d-value{font-size:16px;font-weight:700;}

/* BMI scale */
.bmi-bar{position:relative;padding:20px 0 10px;}
.bmi-zones{display:flex;height:22px;border-radius:6px;overflow:hidden;}
.zone{flex:1;}
.z-under{flex:2;background:rgba(56,189,248,0.6);}
.z-normal{flex:3;background:rgba(52,211,153,0.6);}
.z-over{flex:2;background:rgba(251,191,36,0.6);}
.z-obese{flex:2;background:rgba(244,63,94,0.6);}
.bmi-marker{
  position:absolute;top:2px;width:4px;height:20px;background:#fff;
  border-radius:2px;box-shadow:0 0 8px #fff;transition:left 0.4s ease;
}
.bmi-labels{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);}
.bmi-labels span{flex:1;text-align:center;}
.bmi-labels small{font-size:10px;display:block;}

/* Level bars */
.level-bars{display:flex;flex-direction:column;gap:12px;}
.level-bar{display:grid;grid-template-columns:110px 1fr 80px;gap:12px;align-items:center;font-size:13px;}
.level-bar .lb-name{color:#cfd6ea;font-weight:600;font-size:12px;}
.level-bar .lb-track{height:16px;border-radius:999px;background:rgba(255,255,255,0.06);overflow:hidden;position:relative;}
.level-bar .lb-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-2));transition:width 0.4s ease;}
.level-bar .lb-val{font-family:'JetBrains Mono',monospace;font-weight:700;text-align:right;}
.level-bar.highlight .lb-name{color:var(--primary);}

/* Donut chart */
.chart-wrap{display:flex;align-items:center;gap:28px;flex-wrap:wrap;}
.donut{
  width:170px;height:170px;border-radius:50%;flex-shrink:0;
  transition:background 0.4s ease;
}
.chart-legend{display:flex;flex-direction:column;gap:10px;flex:1;min-width:160px;}
.legend-row{display:flex;align-items:center;gap:10px;font-size:13px;}
.legend-row .lr-dot{width:14px;height:14px;border-radius:4px;flex-shrink:0;}
.legend-row .lr-name{color:var(--muted);flex:1;}
.legend-row .lr-val{font-family:'JetBrains Mono',monospace;font-weight:700;}

/* Export tools */
.tool-btn{
  display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.05);
  border:1px solid var(--panel-border);color:var(--text);padding:9px 14px;border-radius:9px;
  font-size:12px;font-weight:600;cursor:pointer;transition:all 0.2s;font-family:inherit;
}
.tool-btn:hover{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.2);}
.tool-btn:active{transform:scale(0.95);}
.tool-btn svg{width:15px;height:15px;}

/* ===== FEATURES ===== */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.feature{display:flex;gap:12px;align-items:flex-start;background:var(--panel);border:1px solid var(--panel-border);border-radius:14px;padding:16px;}
.f-ico{font-size:22px;line-height:1;}
.feature b{font-size:14px;display:block;}
.feature p{font-size:12px;color:var(--muted);margin-top:3px;line-height:1.4;}

/* ===== TOAST ===== */
.toast{
  position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(100px);
  background:#1a1f2e;border:1px solid var(--panel-border);color:var(--text);
  padding:13px 24px;border-radius:12px;font-size:14px;font-weight:500;
  box-shadow:var(--shadow);z-index:100;transition:transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  opacity:0;pointer-events:none;
}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1;}
.toast.success{border-color:rgba(52,211,153,0.5);color:#6ee7b7;}
.toast.error{border-color:rgba(244,63,94,0.5);color:#fda4af;}

.hidden{display:none !important;}

/* ===== RESPONSIVE ===== */
@media(max-width:1000px){
  .dashboard{grid-template-columns:1fr;}
  .summary{grid-template-columns:1fr 1fr;}
  .macro-cards{grid-template-columns:repeat(2,1fr);}
  .detail-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:560px){
  .summary{grid-template-columns:1fr;}
  .sex-toggle{grid-template-columns:repeat(3,1fr);}
}