/* =========================================================
   TOKENS
   ========================================================= */
:root{
  --navy-950:#07151d;
  --navy-900:#0b1f2a;
  --navy-800:#102b3a;
  --navy-700:#173a4d;
  --navy-600:#20506a;
  --line:rgba(255,255,255,0.08);
  --ink:#eaf3f6;
  --ink-dim:#9db3bd;
  --ink-faint:#6d8894;
  --amber:#f2a93b;
  --amber-soft:#f2a93b22;
  --mint:#3ddc97;
  --mint-soft:#3ddc9722;
  --coral:#ff6b6b;
  --coral-soft:#ff6b6b22;
  --sky:#57b8ff;
  --sky-soft:#57b8ff22;

  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'Space Mono', monospace;

  --shadow-soft: 0 20px 50px -20px rgba(0,0,0,0.55);
  --shadow-card: 0 12px 30px -14px rgba(0,0,0,0.45);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:
    radial-gradient(circle at 12% 8%, rgba(87,184,255,0.07), transparent 45%),
    radial-gradient(circle at 88% 0%, rgba(242,169,59,0.08), transparent 40%),
    var(--navy-950);
  color:var(--ink);
  font-family:var(--font-body);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; transition-duration:0.01ms !important;}
}

h1,h2,h3,h4{font-family:var(--font-display); letter-spacing:-0.01em;}
.num{font-family:var(--font-mono);}

a{color:inherit; text-decoration:none;}
button{font-family:inherit; cursor:pointer; border:none;}
input, select{font-family:inherit;}

/* =========================================================
   LOADING SCREEN
   ========================================================= */
#loader{
  position:fixed; inset:0; z-index:999;
  background:var(--navy-950);
  display:flex; align-items:center; justify-content:center;
  flex-direction:column;
  gap:18px;
  transition:opacity .6s ease, visibility .6s ease;
}
#loader.hide{opacity:0; visibility:hidden; pointer-events:none;}
.loader-mark{
  width:56px; height:56px; border-radius:14px;
  background:linear-gradient(135deg, var(--amber), var(--mint));
  position:relative;
  animation:pulseMark 1.4s ease-in-out infinite;
}
@keyframes pulseMark{
  0%,100%{transform:scale(1); box-shadow:0 0 0 0 rgba(242,169,59,0.35);}
  50%{transform:scale(1.08); box-shadow:0 0 0 14px rgba(242,169,59,0);}
}
.loader-text{color:var(--ink-dim); font-family:var(--font-mono); font-size:13px; letter-spacing:0.08em;}

/* =========================================================
   LAYOUT SHELL
   ========================================================= */
.app{
  display:grid;
  grid-template-columns:264px 1fr;
  min-height:100vh;
  opacity:0;
  transform:translateY(8px);
  transition:opacity .7s ease, transform .7s ease;
}
.app.ready{opacity:1; transform:none;}

/* ---- Sidebar ---- */
.sidebar{
  background:linear-gradient(180deg, var(--navy-900), var(--navy-950));
  border-right:1px solid var(--line);
  padding:28px 20px;
  display:flex; flex-direction:column;
  position:sticky; top:0; height:100vh;
}
.brand{display:flex; align-items:center; gap:12px; padding:4px 6px 28px;}
.brand-mark{
  width:38px; height:38px; border-radius:11px; flex-shrink:0;
  background:linear-gradient(135deg, var(--amber), var(--mint));
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; color:var(--navy-950); font-size:16px;
}
.brand-name{font-family:var(--font-display); font-weight:600; font-size:15px; line-height:1.2;}
.brand-name span{display:block; font-family:var(--font-body); font-weight:400; font-size:11px; color:var(--ink-faint); letter-spacing:0.03em;}

.nav{display:flex; flex-direction:column; gap:4px; flex:1;}
.nav-item{
  display:flex; align-items:center; gap:12px;
  padding:11px 14px; border-radius:var(--radius-sm);
  color:var(--ink-dim); font-size:14px; font-weight:500;
  transition:background .2s ease, color .2s ease, transform .2s ease;
}
.nav-item .ic{width:18px; text-align:center; font-size:15px;}
.nav-item:hover{background:rgba(255,255,255,0.05); color:var(--ink); transform:translateX(2px);}
.nav-item.active{background:var(--amber-soft); color:var(--amber);}

.sidebar-footer{
  border-top:1px solid var(--line); padding-top:16px; margin-top:16px;
  font-size:11.5px; color:var(--ink-faint); line-height:1.6;
}
.sidebar-footer strong{color:var(--ink-dim); font-weight:600;}

/* ---- Mobile top bar ---- */
.topbar{
  display:none;
  align-items:center; justify-content:space-between;
  padding:16px 18px;
  background:var(--navy-900);
  border-bottom:1px solid var(--line);
  position:sticky; top:0; z-index:50;
}
.burger{
  width:38px; height:38px; border-radius:10px; background:rgba(255,255,255,0.06);
  display:flex; align-items:center; justify-content:center; color:var(--ink);
  font-size:16px;
}

/* ---- Main ---- */
.main{padding:36px 40px 20px; max-width:1180px; width:100%;}
.page-head{display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:28px; flex-wrap:wrap; gap:12px;}
.page-head h1{font-size:26px; font-weight:600;}
.page-head p{color:var(--ink-faint); font-size:13.5px; margin-top:4px;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:11px; letter-spacing:0.1em; text-transform:uppercase;
  color:var(--amber); background:var(--amber-soft); padding:5px 10px; border-radius:20px; margin-bottom:10px;
}

.section{display:none; animation:fadeSlide .5s ease;}
.section.active{display:block;}
@keyframes fadeSlide{from{opacity:0; transform:translateY(10px);} to{opacity:1; transform:none;}}

/* =========================================================
   CARDS / GRID
   ========================================================= */
.grid{display:grid; gap:18px;}
.grid-4{grid-template-columns:repeat(4, 1fr);}
.grid-2{grid-template-columns:1fr 1fr;}
.grid-3{grid-template-columns:repeat(3, 1fr);}
@media (max-width:1000px){
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .grid-2{grid-template-columns:1fr;}
}
@media (max-width:640px){
  .grid-4{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
}

.card{
  background:linear-gradient(160deg, var(--navy-800), var(--navy-900));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:22px;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{transform:translateY(-3px); border-color:rgba(255,255,255,0.16); box-shadow:var(--shadow-soft);}

.stat-card .stat-top{display:flex; align-items:center; justify-content:space-between; margin-bottom:14px;}
.stat-label{font-size:12px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:0.06em;}
.stat-icon{width:34px; height:34px; border-radius:10px; display:flex; align-items:center; justify-content:center; font-size:15px;}
.stat-value{font-family:var(--font-mono); font-size:25px; font-weight:700; line-height:1;}
.stat-sub{margin-top:8px; font-size:12px; color:var(--ink-faint);}
.tag{display:inline-block; padding:3px 9px; border-radius:20px; font-size:11px; font-weight:600; margin-top:10px;}
.tag.good{background:var(--mint-soft); color:var(--mint);}
.tag.warn{background:var(--coral-soft); color:var(--coral);}
.tag.mid{background:var(--sky-soft); color:var(--sky);}

/* =========================================================
   HEALTH GAUGE (signature element)
   ========================================================= */
.gauge-card{display:flex; align-items:center; gap:26px; flex-wrap:wrap;}
.gauge-wrap{position:relative; width:150px; height:150px; flex-shrink:0;}
.gauge-wrap svg{transform:rotate(-90deg);}
.gauge-bg{fill:none; stroke:rgba(255,255,255,0.08); stroke-width:12;}
.gauge-fg{fill:none; stroke-width:12; stroke-linecap:round; stroke:var(--mint); transition:stroke-dashoffset 1.1s cubic-bezier(.4,0,.2,1), stroke 0.4s ease;}
.gauge-center{position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center;}
.gauge-center .val{font-family:var(--font-mono); font-size:28px; font-weight:700;}
.gauge-center .lab{font-size:10.5px; color:var(--ink-faint); text-transform:uppercase; letter-spacing:0.05em;}
.gauge-info{flex:1; min-width:200px;}
.gauge-info h3{font-size:17px; margin-bottom:6px;}
.gauge-info p{font-size:13.5px; color:var(--ink-dim); line-height:1.6;}

/* =========================================================
   FORMS
   ========================================================= */
.form-card{padding:26px;}
.form-row{display:grid; grid-template-columns:repeat(2,1fr); gap:16px; margin-bottom:16px;}
@media (max-width:640px){.form-row{grid-template-columns:1fr;}}
.field label{display:block; font-size:12.5px; color:var(--ink-dim); margin-bottom:7px; font-weight:500;}
.field .input-wrap{position:relative;}
.field .input-wrap .ic{position:absolute; left:13px; top:50%; transform:translateY(-50%); opacity:0.6; font-size:14px;}
.field input, .field select{
  width:100%; padding:11px 14px 11px 36px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  color:var(--ink); font-size:14px;
  transition:border-color .2s ease, background .2s ease;
}
.field input:focus, .field select:focus{
  outline:none; border-color:var(--amber); background:rgba(255,255,255,0.06);
}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 22px; border-radius:var(--radius-sm);
  background:linear-gradient(135deg, var(--amber), #e8952a);
  color:var(--navy-950); font-weight:600; font-size:14px;
  transition:transform .2s ease, box-shadow .2s ease;
  box-shadow:0 10px 24px -8px rgba(242,169,59,0.45);
}
.btn:hover{transform:translateY(-2px);}
.btn.ghost{
  background:rgba(255,255,255,0.05); color:var(--ink); box-shadow:none; border:1px solid var(--line);
}
.btn.ghost:hover{background:rgba(255,255,255,0.09);}
.btn-row{display:flex; gap:12px; margin-top:6px; flex-wrap:wrap;}

/* =========================================================
   ADVICE LIST
   ========================================================= */
.advice-list{display:flex; flex-direction:column; gap:12px;}
.advice-item{
  display:flex; gap:14px; align-items:flex-start;
  padding:16px 18px; border-radius:var(--radius-md);
  background:rgba(255,255,255,0.03); border:1px solid var(--line);
  animation:fadeSlide .4s ease;
}
.advice-item .ic{font-size:18px; flex-shrink:0;}
.advice-item .txt{font-size:13.5px; color:var(--ink-dim); line-height:1.55;}
.advice-item .txt b{color:var(--ink); font-weight:600;}

/* =========================================================
   PROJECTS
   ========================================================= */
.project-picker{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:22px;}
@media (max-width:900px){.project-picker{grid-template-columns:repeat(3,1fr);}}
@media (max-width:640px){.project-picker{grid-template-columns:repeat(2,1fr);}}
.proj-tile{
  padding:18px 14px; text-align:center; border-radius:var(--radius-md);
  background:rgba(255,255,255,0.03); border:1px solid var(--line);
  transition:all .2s ease; display:flex; flex-direction:column; align-items:center; gap:8px;
}
.proj-tile .ic{font-size:24px;}
.proj-tile .lab{font-size:12.5px; font-weight:500; color:var(--ink-dim);}
.proj-tile:hover{background:rgba(255,255,255,0.06); transform:translateY(-3px);}
.proj-tile.active{border-color:var(--amber); background:var(--amber-soft);}
.proj-tile.active .lab{color:var(--amber);}

.duration-picker{display:flex; gap:10px; flex-wrap:wrap; margin:10px 0 20px;}
.dur-btn{
  padding:9px 18px; border-radius:20px; font-size:13px; font-weight:600;
  background:rgba(255,255,255,0.04); border:1px solid var(--line); color:var(--ink-dim);
  transition:all .2s ease;
}
.dur-btn.active{background:var(--sky-soft); color:var(--sky); border-color:transparent;}

.result-banner{
  border-radius:var(--radius-md); padding:20px; margin-top:6px;
  background:linear-gradient(120deg, rgba(61,220,151,0.08), rgba(87,184,255,0.06));
  border:1px solid var(--line);
}
.result-banner .row{display:flex; justify-content:space-between; align-items:baseline; padding:7px 0; border-bottom:1px dashed var(--line); font-size:13.5px;}
.result-banner .row:last-child{border-bottom:none;}
.result-banner .row .v{font-family:var(--font-mono); font-weight:700; color:var(--ink);}
.result-banner .row .l{color:var(--ink-faint);}

/* =========================================================
   PLANIFICATION CHART
   ========================================================= */
.chart-wrap{margin-top:10px; overflow-x:auto;}
#planChart{width:100%; height:260px; display:block;}
.legend{display:flex; gap:20px; margin-top:14px; flex-wrap:wrap;}
.legend .item{display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--ink-dim);}
.legend .dot{width:10px; height:10px; border-radius:3px;}

/* =========================================================
   FOOTER
   ========================================================= */
footer{
  margin-top:50px; padding:34px 40px 40px;
  border-top:1px solid var(--line);
  color:var(--ink-faint); font-size:13px;
}
footer .foot-grid{display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap;}
footer h4{color:var(--ink); font-size:14px; margin-bottom:10px;}
footer .contact-line{margin-bottom:4px;}
footer .note{max-width:460px; line-height:1.6; font-style:italic; color:var(--ink-faint);}
footer .bottom{margin-top:22px; padding-top:16px; border-top:1px solid var(--line); font-size:11.5px; text-align:center; color:var(--ink-faint);}

/* =========================================================
   RESPONSIVE SHELL
   ========================================================= */
@media (max-width:900px){
  .app{grid-template-columns:1fr;}
  .sidebar{
    position:fixed; left:0; top:0; height:100vh; width:250px; z-index:100;
    transform:translateX(-100%); transition:transform .3s ease;
  }
  .sidebar.open{transform:translateX(0);}
  .topbar{display:flex;}
  .main{padding:24px 18px;}
  footer{padding:28px 18px 30px;}
  .overlay{position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:90; opacity:0; pointer-events:none; transition:opacity .3s ease;}
  .overlay.show{opacity:1; pointer-events:auto;}
}