/* ==========================================================================
   Geometrical Compass Box — Stylesheet
   Plain, hand-editable CSS. No build step required.
   ========================================================================== */

:root {
  --color-primary: #17213b;
  --color-primary-foreground: #ffffff;
  --color-accent: #f5a623;
  --color-accent-foreground: #17213b;
  --color-background: #fbf9f6;
  --color-foreground: #17213b;
  --color-muted: #f1eee8;
  --color-muted-foreground: #6b7280;
  --color-card: #ffffff;
  --color-border: #e6e1d8;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: Georgia, Cambria, "Times New Roman", Times, serif;

  --max-width: 1152px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.5;
  overflow-x: hidden;
}

h1, h2, h3, h4 { margin: 0; }

p { margin: 0; }

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.font-serif { font-family: var(--font-serif); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(245, 166, 35, 0.1);
  color: var(--color-accent-foreground);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid rgba(245, 166, 35, 0.2);
  margin-bottom: 16px;
}

.eyebrow.on-dark {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-accent);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ---------- Navigation ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(251, 249, 246, 0.4);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.nav.scrolled {
  background: rgba(251, 249, 246, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-primary);
}

.brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), #334155);
  color: var(--color-primary-foreground);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(23, 33, 59, 0.2);
  transition: transform 0.3s ease;
}

.brand:hover .brand-mark { transform: rotate(18deg); }

.brand-name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.brand-name em {
  color: var(--color-accent);
  font-style: italic;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted-foreground);
  background: rgba(241, 238, 232, 0.6);
  border: 1px solid rgba(230, 225, 216, 0.7);
  border-radius: 999px;
  padding: 6px;
}

.nav-links a {
  position: relative;
  padding: 6px 14px;
  border-radius: 999px;
  transition: color 0.2s ease;
}

.nav-links a:hover { color: var(--color-primary); }

.nav-links a.active {
  color: var(--color-primary);
  background: var(--color-background);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(230, 225, 216, 0.7);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-actions .btn-ghost { padding: 8px 12px; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-primary);
  cursor: pointer;
}

.mobile-menu {
  display: none;
  overflow: hidden;
  background: rgba(251, 249, 246, 0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu.open { display: block; }

.mobile-menu-inner {
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu a {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted-foreground);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: var(--color-muted);
  color: var(--color-primary);
}

.mobile-menu .btn-primary {
  margin-top: 8px;
  justify-content: center;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-foreground);
  box-shadow: 0 2px 8px rgba(23, 33, 59, 0.2);
}

.btn-primary:hover { background: #232f4f; }

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-primary);
}

.btn-outline:hover { background: var(--color-muted); }

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
}

.btn-ghost:hover { background: var(--color-muted); }

.icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 180px 24px 120px;
  overflow: hidden;
  text-align: center;
}

.hero-dots {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.35;
  background-image: radial-gradient(circle at 1.5px 1.5px, rgba(23, 33, 59, 0.12) 1.5px, transparent 0);
  background-size: 28px 28px;
}

.hero-glow-accent {
  position: absolute;
  top: -128px;
  right: -128px;
  width: 384px;
  height: 384px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.1);
  filter: blur(70px);
  z-index: -1;
}

.hero-glow-primary {
  position: absolute;
  bottom: -128px;
  left: -128px;
  width: 384px;
  height: 384px;
  border-radius: 50%;
  background: rgba(23, 33, 59, 0.05);
  filter: blur(70px);
  z-index: -1;
}

.hero-inner { max-width: 720px; margin: 0 auto; }

.hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 48px;
  line-height: 1.05;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero h1 em {
  color: var(--color-accent);
  font-style: italic;
}

.hero p {
  font-size: 18px;
  color: var(--color-muted-foreground);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

.hero-actions {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- Section base ---------- */

section { position: relative; }

.section-dark {
  padding: 112px 0;
  background: var(--color-primary);
  color: var(--color-primary-foreground);
  overflow: hidden;
}

.section-dark-dots {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image: radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.9) 1px, transparent 0);
  background-size: 26px 26px;
}

.section-dark-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 448px;
  height: 448px;
  background: rgba(245, 166, 35, 0.1);
  border-radius: 50%;
  filter: blur(80px);
  transform: translate(33%, -33%);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  position: relative;
}

.section-dark h2 {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 500;
  margin-bottom: 32px;
  line-height: 1.2;
}

.section-dark p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.stat-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
}

.stat-card .num {
  font-family: var(--font-serif);
  font-size: 30px;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.stat-card .label {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.hero-visual .icon-xl { position: absolute; opacity: 0.2; }

.mini-cards {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.mini-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 20px;
}

.mini-card p:first-of-type { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.mini-card p:last-of-type { font-size: 12px; color: rgba(255, 255, 255, 0.7); }

/* ---------- Instruments ---------- */

.section-muted {
  padding: 128px 0;
  background: var(--color-muted);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-header p {
  font-size: 18px;
  color: var(--color-muted-foreground);
  max-width: 640px;
  margin: 0 auto;
}

.tool-grid {
  display: grid; 
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tool-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.tool-card:hover {
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.tool-image {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.tool-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.tool-card:hover .tool-image img { transform: scale(1.05); }

.tool-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(23, 33, 59, 0.9);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-body { padding: 24px; }

.tool-body h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.tool-body p {
  font-size: 14px;
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

/* ---------- Simulation ---------- */

.section-light {
  padding: 128px 0;
  background: #f8fafc;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-light > .wrap > h2 {
  font-size: 36px;
  font-weight: 300;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.section-light > .wrap > p.intro {
  font-size: 18px;
  color: var(--color-muted-foreground);
  max-width: 720px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.sim-layout {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 32px;
}

.sim-toolbar{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:1rem;
    margin-bottom:1rem;
    flex-wrap:wrap;
}


.sim-toolbar p {
  font-size: 14px;
  color: var(--color-muted-foreground);
}

.sim-frame{
    position:relative;
    width:100%;
    height:min(95vh,1000px);
    border-radius:18px;
    overflow:hidden;
    border:1px solid var(--border-color);
    box-shadow:0 20px 45px rgba(0,0,0,.08);
    background:#fff;
}

.sim-frame.fullscreen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  width: 100vw;
}

.sim-frame iframe{
    width:100%;
    height:100%;
    border:none;
    display:block;
}

.sim-frame.fullscreen iframe { height: 100%; }

.exit-fullscreen-floating {
  position: absolute;
  top: 16px;
  right: 80px;
  z-index: 20;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.sim-guide h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.sim-guide ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sim-guide li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  color: var(--color-muted-foreground);
}

.step-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.2);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 12px;
  flex-shrink: 0;
}
.sim-title{
    margin:0;
    font-size:1.15rem;
    font-weight:600;
}
.sim-actions{
    display:flex;
    gap:.75rem;
    flex-wrap:wrap;
}
.simulation-wrap{
    width:min(1000px,96vw);
    height: 800px;
    margin:0 auto;
}

.sim-guide strong { color: var(--color-foreground); }

/* ---------- Usage / applications ---------- */

.section-plain { padding: 128px 0; }

.section-plain h2 {
  font-size: 30px;
  font-weight: 300;
  color: var(--color-primary);
  margin-bottom: 32px;
}

.app-item {
  border-left: 2px solid var(--color-accent);
  padding: 8px 0 8px 24px;
  margin-bottom: 24px;
}

.app-item h4 {
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.app-item p {
  font-size: 14px;
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

.kit-card {
  padding: 20px;
  border-radius: 12px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
}

.kit-card h4 { font-size: 16px; color: var(--color-primary); margin-bottom: 4px; }
.kit-card p { font-size: 14px; color: var(--color-muted-foreground); }

/* ---------- Best practices ---------- */

.section-dark.compact { padding: 96px 0; text-align: center; }

.section-dark.compact .wrap { max-width: 800px; }

.section-dark.compact h2 { font-size: 30px; margin-bottom: 32px; }

.tip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: left;
}

.tip-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 24px;
}

.tip-card h4 { color: var(--color-accent); margin-bottom: 8px; font-size: 15px; }
.tip-card p { font-size: 14px; color: rgba(255, 255, 255, 0.8); }

.fun-fact {
  margin-top: 64px;
  padding: 32px;
  border-radius: 16px;
  background: var(--color-accent);
  color: var(--color-accent-foreground);
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

.fun-fact .icon-lg { width: 32px; height: 32px; flex-shrink: 0; margin-top: 4px; }

.fun-fact h4 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 8px;
}

.fun-fact p { line-height: 1.6; opacity: 0.9; }

/* ---------- About ---------- */

.section-about {
  padding: 96px 0;
  background: rgba(241, 238, 232, 0.4);
  border-top: 1px solid var(--color-border);
}

.section-about .wrap { max-width: 800px; }

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.about-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px;
}

.about-card .icon-md { width: 24px; height: 24px; color: var(--color-accent); margin-bottom: 12px; }
.about-card h4 { font-size: 16px; color: var(--color-primary); margin-bottom: 4px; }
.about-card p { font-size: 14px; color: var(--color-muted-foreground); line-height: 1.6; }

/* ---------- Footer ---------- */

footer {
  padding: 48px 24px;
  border-top: 1px solid var(--color-border);
  background: var(--color-background);
  text-align: center;
  color: var(--color-muted-foreground);
  font-size: 14px;
}

footer .wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

footer .brand-line { font-family: var(--font-serif); color: var(--color-primary); font-size: 16px; }
footer .fine-print { font-size: 12px; opacity: 0.7; }

/* ---------- Fade-in animation ---------- */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: flex; }

  .two-col, .sim-layout, .about-grid { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
  .tip-grid { grid-template-columns: 1fr; }

  .hero h1 { font-size: 36px; }
  .hero { padding: 140px 24px 80px; }
}

@media (max-width: 560px) {
  .tool-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
  .mini-cards { grid-template-columns: 1fr; }
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.video-card {
    background: #1b1b1b;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,.25);
    text-align: center;
}

.video-card iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: none;
}

.video-card h4 {
    margin: 18px 0 8px;
    color: #fff;
}

.video-card p {
    padding: 0 20px 20px;
    color: #bbb;
}

.section-subtitle{
    text-align:center;
    color:#bbb;
    margin-top:10px;
}

/* ==========================================================
   ABOUT ME MODAL
   ========================================================== */

.about-modal{
    position:fixed;
    inset:0;

    display:flex;
    align-items:center;
    justify-content:center;

    padding:30px;

    background:rgba(0,0,0,.72);
    backdrop-filter:blur(8px);

    opacity:0;
    visibility:hidden;

    transition:all .35s ease;

    z-index:9999;
}

.about-modal.show{
    opacity:1;
    visibility:visible;
}

.about-modal-content{

    width:min(900px,95%);
    max-height:90vh;

    overflow-y:auto;

    background:#ffffff;

    border-radius:22px;

    padding:40px;

    position:relative;

    box-shadow:
        0 25px 60px rgba(0,0,0,.25);

    animation:aboutPopup .35s ease;

}

/* Close Button */

.close-about{

    position:absolute;

    top:18px;
    right:18px;

    width:42px;
    height:42px;

    border:none;

    border-radius:50%;

    background:#f3f4f6;

    font-size:28px;

    color:#444;

    cursor:pointer;

    transition:.25s;

}

.close-about:hover{

    background:#ef4444;

    color:#fff;

}

/* Profile */

.about-profile{

    text-align:center;

    margin-bottom:35px;

}

.about-profile img{

    width:150px;
    height:150px;

    object-fit:cover;

    border-radius:50%;

    border:5px solid var(--color-accent);

    margin:auto auto 20px;

    box-shadow:0 15px 35px rgba(0,0,0,.18);

}

.about-profile h2{

    font-family:var(--font-serif);

    font-size:32px;

    color:var(--color-primary);

    margin-bottom:8px;

}

.about-profile p{

    color:var(--color-muted-foreground);

    font-size:15px;

}

/* Sections */

.about-section{

    margin-top:35px;

}

.about-section h3{

    font-family:var(--font-serif);

    color:var(--color-primary);

    font-size:24px;

    margin-bottom:16px;

    border-left:5px solid var(--color-accent);

    padding-left:12px;

}

.about-section p{

    color:#555;

    line-height:1.8;

    margin-bottom:14px;

}

/* Credit Cards */

.credit-item{

    background:#fafafa;

    border-left:5px solid var(--color-accent);

    border-radius:12px;

    padding:18px 20px;

    margin:18px 0;

}

.credit-item h4{

    color:var(--color-primary);

    margin-bottom:8px;

    font-size:17px;

}

.credit-item p{

    color:#666;

    line-height:1.7;

}

/* Contact */

.contact-list{

    display:grid;

    gap:12px;

    margin-top:20px;

}

.contact-list div{

    display:flex;

    align-items:center;

    gap:12px;

    color:#555;

}

/* Social */

.social-links{

    display:flex;

    justify-content:center;

    gap:18px;

    flex-wrap:wrap;

    margin-top:25px;

}

.social-links a{

    background:var(--color-muted);

    color:var(--color-primary);

    padding:10px 20px;

    border-radius:50px;

    font-weight:600;

    transition:.25s;

}

.social-links a:hover{

    background:var(--color-accent);

    color:#fff;

}

/* Footer */

.about-footer{

    text-align:center;

    margin-top:35px;

    padding-top:20px;

    border-top:1px solid #e5e5e5;

    color:#777;

    font-size:14px;

}

/* Scrollbar */

.about-modal-content::-webkit-scrollbar{

    width:8px;

}

.about-modal-content::-webkit-scrollbar-thumb{

    background:#d2d2d2;

    border-radius:20px;

}

/* Prevent page scroll */

body.modal-open{

    overflow:hidden;

}

/* Animation */

@keyframes aboutPopup{

    from{

        transform:translateY(30px) scale(.96);

        opacity:0;

    }

    to{

        transform:translateY(0) scale(1);

        opacity:1;

    }

}

/* Mobile */

@media(max-width:768px){

    .about-modal{

        padding:15px;

    }

    .about-modal-content{

        padding:25px;

    }

    .about-profile img{

        width:120px;
        height:120px;

    }

    .about-profile h2{

        font-size:26px;

    }

    .about-section h3{

        font-size:20px;

    }

}
.hero-features{
    margin-top:50px;

    display:grid;
    grid-template-columns:repeat(3,1fr);

    gap:20px;

    text-align:left;
}

.hero-features .feature{

    background:rgba(255,255,255,.75);

    border:1px solid var(--color-border);

    border-radius:16px;

    padding:20px;

    box-shadow:0 10px 25px rgba(0,0,0,.05);

}

.hero-features strong{

    display:block;

    color:var(--color-primary);

    margin-bottom:8px;

    font-size:16px;

}

.hero-features span{

    color:var(--color-muted-foreground);

    font-size:14px;

    line-height:1.6;

}

@media(max-width:900px){

    .hero-features{

        grid-template-columns:1fr;

    }

}
.guide-modal{
    position:fixed;
    inset:0;
    display:none;
    align-items:center;
    justify-content:center;
    background:rgba(0,0,0,.55);
    z-index:9999;
    padding:1rem;
}

.guide-modal.active{
    display:flex;
}

.guide-content{
    background:#fff;
    width:min(900px,95vw);
    max-height:90vh;
    overflow-y:auto;
    border-radius:16px;
    padding:2rem;
    box-shadow:0 20px 50px rgba(0,0,0,.2);
    position:relative;
}

.guide-close{
    position:absolute;
    top:16px;
    right:18px;
    border:none;
    background:none;
    font-size:2rem;
    cursor:pointer;
    color:#555;
}

.guide-content h2{
    margin:0 0 1.5rem;
    padding-bottom:.75rem;
    border-bottom:2px solid #eee;
}

.guide-section{
    margin:2rem 0;
}

.guide-section:first-of-type{
    margin-top:1rem;
}

.guide-section h3{
    margin:0 0 .8rem;
    color:#1d4ed8;
    font-size:1.15rem;
}

.guide-section p{
    margin:.6rem 0;
    line-height:1.7;
}

.guide-section ul,
.guide-section ol{
    margin:.8rem 0 .8rem 1.4rem;
    padding:0;
}

.guide-section li{
    margin:.45rem 0;
    line-height:1.7;
}

.guide-note{
    margin-top:1rem;
    padding:1rem 1.25rem;
    border-left:5px solid #2563eb;
    background:#eff6ff;
    border-radius:10px;
}

.guide-note strong{
    display:block;
    margin-bottom:.5rem;
}

.guide-note ul{
    margin:.5rem 0 0 1.25rem;
}

.guide-note li{
    margin:.35rem 0;
}

.social-links{
    display:flex;
    justify-content:center;
    gap:15px;
    flex-wrap:wrap;
    margin-top:20px;
}

.social-btn{
    display:flex;
    align-items:center;
    gap:10px;
    text-decoration:none;
    color:#fff;
    padding:12px 20px;
    border-radius:40px;
    font-size:16px;
    font-weight:600;
    transition:.3s ease;
    box-shadow:0 4px 10px rgba(0,0,0,.15);
}

.social-btn i{
    font-size:22px;
}

.social-btn:hover{
    transform:translateY(-4px);
    box-shadow:0 8px 18px rgba(0,0,0,.25);
}

/* Facebook */
.facebook{
    background:#1877F2;
}

.facebook:hover{
    background:#0d65d9;
}

/* Instagram */
.instagram{
    background:linear-gradient(
        45deg,
        #f09433,
        #e6683c,
        #dc2743,
        #cc2366,
        #bc1888
    );
}

/* YouTube */
.youtube{
    background:#FF0000;
}

.youtube:hover{
    background:#d90000;
}