@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;600;700&family=Nunito:wght@700;800;900&display=swap');

:root {
  --blue:rgb(30,100,180);--light-blue:rgb(210,235,255);--green:rgb(20,140,80);
  --light-green:rgb(210,245,225);--red:rgb(200,30,40);--saffron:rgb(245,130,20);
  --violet:rgb(110,40,160);--light-violet:rgb(235,215,255);--gold:rgb(220,170,0);
  --teal:rgb(0,150,145);--bg-main:rgb(240,248,255);--border-main:rgb(30,100,180);
  --white:#ffffff;--dark:rgb(20,30,50);--shadow:0 4px 18px rgba(30,100,180,0.18);
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Nunito',sans-serif;font-weight:800;background:var(--bg-main);color:var(--dark);min-height:100vh;}

/* HEADER */
header{background:linear-gradient(135deg,rgb(20,80,160) 0%,rgb(0,140,130) 50%,rgb(100,30,150) 100%);color:#fff;padding:38px 30px 28px;text-align:center;border-bottom:6px solid var(--saffron);position:relative;overflow:hidden;}
header::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,0.03) 0px,rgba(255,255,255,0.03) 2px,transparent 2px,transparent 14px);pointer-events:none;}
header h1{font-family:'Oswald',sans-serif;font-size:2.4rem;font-weight:700;letter-spacing:2px;text-shadow:0 2px 8px rgba(0,0,0,0.4);position:relative;}
header p{margin-top:10px;font-size:1.05rem;font-weight:800;color:rgb(255,240,200);position:relative;}
.badge{display:inline-block;background:var(--saffron);color:var(--dark);border-radius:20px;padding:4px 18px;font-size:0.88rem;font-weight:900;margin-top:10px;letter-spacing:1px;}

/* PRINT BAR */
.print-bar{background:rgb(245,248,255);border-bottom:3px solid var(--blue);padding:12px 30px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.btn-print{background:var(--red);color:#fff;border:none;border-radius:8px;padding:10px 28px;font-family:'Nunito',sans-serif;font-size:1rem;font-weight:900;cursor:pointer;letter-spacing:1px;box-shadow:0 3px 10px rgba(200,30,40,0.25);transition:background 0.2s,transform 0.1s;}
.btn-print:hover{background:rgb(160,20,30);transform:scale(1.04);}

/* NAV */
nav{background:var(--dark);padding:0 20px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;min-height:56px;border-bottom:4px solid var(--saffron);position:sticky;top:0;z-index:100;}
nav a{display:inline-block;color:#fff;background:transparent;border:2px solid transparent;border-radius:6px;padding:8px 14px;font-family:'Nunito',sans-serif;font-size:0.85rem;font-weight:900;text-decoration:none;letter-spacing:0.5px;transition:background 0.18s,border-color 0.18s,color 0.18s;}
nav a:hover{background:var(--saffron);color:var(--dark);border-color:var(--saffron);}
nav a.active{background:var(--blue);border-color:var(--blue);}

/* CONTAINER */
.container{max-width:1200px;margin:0 auto;padding:32px 20px 60px;}

/* SECTION */
.section{margin-bottom:48px;border:3px solid var(--border-main);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);}
.section-header{padding:18px 28px;font-family:'Oswald',sans-serif;font-size:1.4rem;font-weight:700;letter-spacing:1.5px;color:#fff;display:flex;align-items:center;gap:12px;}
.section-body{padding:28px;background:#fff;}
.s-blue  .section-header{background:linear-gradient(90deg,rgb(25,90,170),rgb(0,150,145));border-bottom:3px solid rgb(0,180,170);}
.s-green .section-header{background:linear-gradient(90deg,rgb(15,120,65),rgb(20,160,100));border-bottom:3px solid var(--gold);}
.s-saffron .section-header{background:linear-gradient(90deg,rgb(200,100,0),rgb(245,160,30));border-bottom:3px solid var(--red);}
.s-violet .section-header{background:linear-gradient(90deg,rgb(90,25,140),rgb(140,60,200));border-bottom:3px solid var(--saffron);}
.s-teal .section-header{background:linear-gradient(90deg,rgb(0,120,115),rgb(20,170,160));border-bottom:3px solid var(--blue);}
.s-red .section-header{background:linear-gradient(90deg,rgb(170,20,30),rgb(210,60,70));border-bottom:3px solid var(--gold);}

/* SUBSECTION */
.subsection{margin-bottom:28px;}
.subsection h3{font-family:'Oswald',sans-serif;font-size:1.15rem;font-weight:700;color:var(--blue);border-left:5px solid var(--saffron);padding-left:12px;margin-bottom:12px;letter-spacing:0.8px;}

/* BULLET LIST */
ul.bullet-list{list-style:none;padding:0;}
ul.bullet-list li{padding:9px 14px 9px 38px;margin-bottom:7px;border-radius:8px;font-weight:800;font-size:0.97rem;position:relative;line-height:1.5;}
ul.bullet-list li::before{content:'▶';position:absolute;left:12px;color:var(--saffron);font-size:0.78rem;top:11px;}
.bg-blue li{background:var(--light-blue);color:rgb(15,50,120);}
.bg-green li{background:var(--light-green);color:rgb(10,80,40);}
.bg-violet li{background:var(--light-violet);color:rgb(60,15,100);}
.bg-saffron li{background:rgb(255,240,210);color:rgb(130,60,0);}
.bg-teal li{background:rgb(210,245,245);color:rgb(0,90,85);}
.bg-red li{background:rgb(255,225,228);color:rgb(140,20,30);}

/* TABLE */
.tbl-wrap{overflow-x:auto;margin-top:14px;}
table{width:100%;border-collapse:collapse;font-size:0.94rem;font-weight:800;}
thead tr th{background:var(--blue);color:#fff;padding:12px 16px;text-align:left;font-family:'Oswald',sans-serif;font-size:0.98rem;font-weight:700;letter-spacing:0.8px;border:2px solid rgb(15,60,130);}
tbody tr:nth-child(odd) td{background:var(--light-blue);color:var(--dark);}
tbody tr:nth-child(even) td{background:rgb(230,245,255);color:var(--dark);}
tbody tr td{padding:11px 16px;border:1.5px solid rgb(180,210,245);font-weight:800;}
tbody tr:hover td{background:rgb(255,245,220);}

/* FORMULA BOX */
.formula-box{background:var(--dark);color:var(--saffron);font-family:'Oswald',monospace;font-size:1.25rem;font-weight:700;padding:18px 28px;border-radius:10px;border:3px solid var(--saffron);margin:14px 0;text-align:center;letter-spacing:1.5px;}

/* CODE BOX */
.code-box{background:rgb(20,28,45);color:rgb(100,230,180);font-family:'Courier New',monospace;font-size:0.88rem;font-weight:700;padding:18px 22px;border-radius:10px;border:2px solid var(--green);margin:12px 0;overflow-x:auto;line-height:1.7;white-space:pre;}
.code-box .kw{color:rgb(130,180,255);}
.code-box .cm{color:rgb(140,160,140);}
.code-box .st{color:rgb(255,200,100);}
.code-box .fn{color:rgb(255,130,100);}

/* EXAMPLE BOX */
.example-box{background:rgb(255,250,235);border-left:6px solid var(--saffron);border-radius:0 10px 10px 0;padding:16px 20px;margin:14px 0;font-weight:800;color:rgb(100,55,0);}
.example-box strong{color:var(--red);font-size:1.02rem;}

/* ---- FLOWCHART ---- */
.chart-container{overflow-x:auto;padding:20px 10px;}
.flowchart{display:flex;flex-direction:column;align-items:center;gap:0;min-width:340px;}
.fc-node{padding:14px 32px;border-radius:10px;font-weight:900;font-size:0.97rem;text-align:center;min-width:280px;max-width:420px;border:3px solid transparent;box-shadow:0 3px 12px rgba(0,0,0,0.13);position:relative;z-index:1;}
.fc-arrow{width:3px;height:36px;background:var(--blue);position:relative;display:flex;flex-direction:column;align-items:center;}
.fc-arrow::after{content:'';width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-top:14px solid var(--blue);position:absolute;bottom:-1px;}
.fc-start{background:var(--blue);color:#fff;border-color:rgb(15,60,130);border-radius:50px;}
.fc-process{background:var(--light-blue);color:rgb(15,50,120);border-color:var(--blue);}
.fc-action{background:var(--light-green);color:rgb(10,80,40);border-color:var(--green);}
.fc-check{background:rgb(255,240,210);color:rgb(130,60,0);border-color:var(--saffron);border-radius:8px;}
.fc-end{background:var(--red);color:#fff;border-color:rgb(140,15,25);border-radius:50px;}
.fc-violet{background:var(--light-violet);color:rgb(60,15,100);border-color:var(--violet);}
.fc-teal{background:rgb(210,245,245);color:rgb(0,90,85);border-color:var(--teal);}

/* ---- MIND MAP (SVG-based) ---- */
.mindmap-svg-wrap{overflow-x:auto;padding:10px;}
svg.mindmap{font-family:'Nunito',sans-serif;font-weight:800;}

/* ---- ROADMAP ---- */
.roadmap{display:flex;flex-direction:column;gap:0;position:relative;padding:10px 0 10px 20px;}
.roadmap::before{content:'';position:absolute;left:44px;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--blue),var(--green),var(--saffron),var(--violet),var(--teal),var(--red),var(--gold));border-radius:4px;}
.rm-step{display:flex;gap:22px;align-items:flex-start;margin-bottom:28px;position:relative;}
.rm-num{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Oswald',sans-serif;font-size:1.25rem;font-weight:700;color:#fff;flex-shrink:0;position:relative;z-index:2;}
.rm-content{flex:1;padding:16px 22px;border-radius:12px;border:2.5px solid transparent;box-shadow:0 2px 10px rgba(0,0,0,0.10);}
.rm-content h4{font-family:'Oswald',sans-serif;font-size:1.08rem;font-weight:700;margin-bottom:7px;letter-spacing:0.8px;}
.rm-content p{font-size:0.91rem;font-weight:800;line-height:1.6;}
.rm-1 .rm-num{background:var(--blue);}
.rm-1 .rm-content{background:var(--light-blue);border-color:var(--blue);color:rgb(15,50,120);}
.rm-2 .rm-num{background:var(--green);}
.rm-2 .rm-content{background:var(--light-green);border-color:var(--green);color:rgb(10,80,40);}
.rm-3 .rm-num{background:var(--saffron);}
.rm-3 .rm-content{background:rgb(255,240,210);border-color:var(--saffron);color:rgb(130,60,0);}
.rm-4 .rm-num{background:var(--violet);}
.rm-4 .rm-content{background:var(--light-violet);border-color:var(--violet);color:rgb(60,15,100);}
.rm-5 .rm-num{background:var(--teal);}
.rm-5 .rm-content{background:rgb(210,245,245);border-color:var(--teal);color:rgb(0,90,85);}
.rm-6 .rm-num{background:var(--red);}
.rm-6 .rm-content{background:rgb(255,225,228);border-color:var(--red);color:rgb(140,20,30);}
.rm-7 .rm-num{background:var(--gold);}
.rm-7 .rm-content{background:rgb(255,250,210);border-color:var(--gold);color:rgb(100,70,0);}

/* DISCLAIMER */
.disclaimer{background:rgb(255,248,220);border:3px solid var(--saffron);border-radius:12px;padding:18px 24px;margin-top:40px;font-size:0.95rem;font-weight:800;color:rgb(130,80,0);text-align:center;}
.disclaimer strong{color:var(--red);font-size:1.02rem;}

/* PRINT */
@media print{
  nav,.print-bar{display:none!important;}
  body{background:#fff!important;}
  .section{page-break-inside:avoid;box-shadow:none;border:2px solid #333;}
  .section-header{-webkit-print-color-adjust:exact;print-color-adjust:exact;}
}

@media(max-width:700px){
  header h1{font-size:1.6rem;}
  .section-body{padding:16px;}
  .fc-node{min-width:220px;}
}