/* ===== ROOT VARIABLES ===== */
:root {
  --blue: rgb(30, 100, 200);
  --light-blue: rgb(173, 216, 230);
  --green: rgb(34, 139, 34);
  --light-green: rgb(144, 238, 144);
  --saffron: rgb(255, 153, 51);
  --light-saffron: rgb(255, 213, 153);
  --red: rgb(180, 30, 30);
  --light-red: rgb(255, 182, 182);
  --violet: rgb(120, 0, 180);
  --light-violet: rgb(220, 180, 255);
  --gold: rgb(218, 165, 32);
  --bg-main: rgb(235, 245, 255);
  --bg-nav: rgb(20, 60, 120);
  --border-main: rgb(30, 100, 200);
  --white: #ffffff;
  --dark: rgb(20, 20, 40);
}

/* ===== RESET & BASE ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Georgia', 'Times New Roman', serif;
  background: var(--bg-main);
  color: var(--dark);
  font-weight: bold;
}

/* ===== HEADER ===== */
header {
  background: linear-gradient(135deg, rgb(20,60,120) 0%, rgb(80,0,140) 40%, rgb(180,80,0) 100%);
  color: white;
  padding: 30px 20px;
  text-align: center;
  border-bottom: 6px solid var(--saffron);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
header h1 {
  font-size: 2.4em;
  letter-spacing: 2px;
  text-shadow: 2px 2px 8px rgba(0,0,0,0.6);
  color: rgb(255,230,120);
}
header p {
  font-size: 1.1em;
  margin-top: 8px;
  color: rgb(200,240,255);
}

/* ===== DISCLAIMER ===== */
.disclaimer {
  background: rgb(255,243,205);
  border: 3px solid var(--saffron);
  border-left: 8px solid var(--red);
  margin: 18px 20px;
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 1em;
  color: rgb(100,40,0);
}
.disclaimer strong { color: var(--red); }

/* ===== PRINT BUTTON ===== */
.print-bar {
  text-align: right;
  padding: 10px 24px;
}
.btn-print {
  background: linear-gradient(90deg, var(--green), rgb(0,160,80));
  color: white;
  border: none;
  padding: 11px 28px;
  border-radius: 30px;
  font-size: 1em;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,100,0,0.3);
  letter-spacing: 1px;
  transition: all 0.2s;
}
.btn-print:hover { background: linear-gradient(90deg, rgb(0,160,80), var(--green)); transform: scale(1.05); }

/* ===== NAVIGATION ===== */
nav {
  background: var(--bg-nav);
  padding: 16px 20px;
  border-bottom: 4px solid var(--saffron);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
nav a {
  background: linear-gradient(135deg, var(--saffron), rgb(220,120,0));
  color: white;
  text-decoration: none;
  padding: 9px 16px;
  border-radius: 22px;
  font-size: 0.88em;
  font-weight: bold;
  border: 2px solid rgba(255,255,255,0.3);
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
nav a:hover { background: linear-gradient(135deg, var(--violet), var(--blue)); transform: translateY(-2px); }

/* ===== SECTIONS ===== */
section {
  margin: 28px 20px;
  background: white;
  border-radius: 14px;
  border: 3px solid var(--border-main);
  box-shadow: 0 4px 18px rgba(30,100,200,0.12);
  overflow: hidden;
}

.section-header {
  padding: 18px 24px;
  color: white;
  font-size: 1.5em;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.s1 .section-header { background: linear-gradient(90deg, rgb(20,80,160), rgb(80,0,160)); }
.s2 .section-header { background: linear-gradient(90deg, rgb(0,120,60), rgb(0,80,160)); }
.s3 .section-header { background: linear-gradient(90deg, rgb(180,80,0), rgb(160,0,80)); }
.s4 .section-header { background: linear-gradient(90deg, rgb(100,0,160), rgb(0,80,160)); }
.s5 .section-header { background: linear-gradient(90deg, rgb(160,30,0), rgb(180,100,0)); }
.s6 .section-header { background: linear-gradient(90deg, rgb(0,100,80), rgb(0,60,160)); }
.s7 .section-header { background: linear-gradient(90deg, rgb(80,0,140), rgb(180,60,0)); }
.s8 .section-header { background: linear-gradient(90deg, rgb(20,100,40), rgb(0,80,160)); }

.section-body { padding: 22px 26px; }

/* ===== HEADINGS ===== */
h2.sub { color: var(--blue); font-size: 1.25em; margin: 18px 0 8px; border-left: 5px solid var(--saffron); padding-left: 12px; }
h3.sub2 { color: var(--violet); font-size: 1.08em; margin: 14px 0 6px; padding-left: 20px; border-left: 4px solid var(--light-green); }

/* ===== BULLET LISTS ===== */
ul.info-list { margin: 8px 0 12px 28px; }
ul.info-list li {
  margin: 6px 0;
  font-size: 1em;
  color: var(--dark);
  line-height: 1.7;
  list-style: none;
  position: relative;
  padding-left: 20px;
}
ul.info-list li::before {
  content: "▶";
  color: var(--saffron);
  position: absolute;
  left: 0;
  font-size: 0.75em;
  top: 3px;
}

/* ===== EXAMPLE BOX ===== */
.example-box {
  background: rgb(240,255,245);
  border: 2px solid var(--green);
  border-left: 6px solid var(--green);
  border-radius: 8px;
  padding: 14px 18px;
  margin: 10px 0 16px;
  font-size: 0.97em;
  color: rgb(20,80,20);
}
.example-box strong { color: var(--green); }

/* ===== TABLES ===== */
.tbl-wrap { overflow-x: auto; margin: 14px 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.97em;
}
thead tr { background: linear-gradient(90deg, var(--blue), var(--violet)); color: white; }
thead th { padding: 12px 14px; text-align: left; font-size: 1em; }
tbody tr:nth-child(odd) { background: rgb(240,248,255); }
tbody tr:nth-child(even) { background: rgb(250,240,255); }
tbody td { padding: 10px 14px; border: 1px solid rgb(200,210,230); color: var(--dark); }
tbody tr:hover { background: rgb(255,243,200); }

/* ===== CANVAS SECTIONS ===== */
.canvas-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 10px 0;
}
canvas { display: block; margin: 0 auto; }

/* ===== FOOTER ===== */
footer {
  background: linear-gradient(90deg, rgb(20,60,120), rgb(80,0,140));
  color: rgb(220,230,255);
  text-align: center;
  padding: 22px;
  margin-top: 30px;
  font-size: 0.97em;
  border-top: 5px solid var(--saffron);
}

/* ===== PRINT ===== */
@media print {
  nav, .print-bar, .btn-print { display: none !important; }
  section { break-inside: avoid; border: 2px solid #333; margin: 10px 0; }
  header { background: #000 !important; color: white !important; -webkit-print-color-adjust: exact; }
  body { background: white; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
  header h1 { font-size: 1.5em; }
  .section-body { padding: 14px; }
  nav a { font-size: 0.78em; padding: 7px 11px; }
}