/* ==========================================================================
   OTOFOL — Core Stylesheet
   Design language: dark "service-bay" UI, plate-tag labels, gauge-cluster
   dividers, glass navbar. Brand colors derived from the Otofol logotype.
   ========================================================================== */

/* -------------------------------- Fonts -------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ------------------------------ Design Tokens --------------------------- */
:root{
  /* Brand — sampled from the Otofol wordmark */
  --brand-ink:        #23262E;   /* "oto" charcoal */
  --brand-green:      #1FBF5C;   /* "fol" green */
  --brand-green-dark: #149449;
  --brand-green-light:#6EE7A8;
  --brand-amber:      #F5A623;   /* gauge-amber, used for discount badges only */
  --brand-danger:     #FF5A5F;

  /* Surfaces (dark, service-bay at night) */
  --bg-base:      #0C0E11;
  --bg-base-2:    #101216;
  --bg-elevated:  #16191E;
  --bg-elevated-2:#1B1F25;
  --bg-elevated-3:#20242B;
  --border-soft:  rgba(255,255,255,.08);
  --border-soft-2:rgba(255,255,255,.14);
  --border-glow:  rgba(31,191,92,.45);

  /* Text */
  --text-primary:   #F3F5F4;
  --text-secondary: #A9AFB8;
  --text-tertiary:  #6D7480;
  --text-on-brand:  #06140B;

  /* Gradients */
  --grad-brand: linear-gradient(135deg, #1FBF5C 0%, #17924A 100%);
  --grad-glow:  radial-gradient(60% 60% at 50% 0%, rgba(31,191,92,.28) 0%, rgba(31,191,92,0) 70%);
  --grad-card:  linear-gradient(160deg, rgba(255,255,255,.05) 0%, rgba(255,255,255,0) 55%);
  --grad-text:  linear-gradient(90deg, #F3F5F4 0%, #B9F3CE 120%);

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

  /* Radii */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-full: 999px;

  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0,0,0,.25);
  --shadow-md: 0 12px 30px -8px rgba(0,0,0,.45);
  --shadow-lg: 0 24px 60px -12px rgba(0,0,0,.55);
  --shadow-glow: 0 0 0 1px var(--border-glow), 0 12px 40px -8px rgba(31,191,92,.35);

  /* Layout */
  --container: 1240px;
  --nav-h: 76px;
  --ease: cubic-bezier(.22,1,.36,1);
}

/* -------------------------------- Reset --------------------------------- */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}
html,body{ height:100%; }
body{
  font-family: var(--font-body);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; color:inherit; }
input,textarea,select{ font-family:inherit; font-size:inherit; color:inherit; }
h1,h2,h3,h4{ font-family: var(--font-display); font-weight:600; line-height:1.1; letter-spacing:-0.02em; }
::selection{ background: var(--brand-green); color: var(--text-on-brand); }

/* Focus visibility (kept obvious for accessibility) */
:focus-visible{
  outline: 2px solid var(--brand-green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Scrollbar */
::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:var(--bg-base); }
::-webkit-scrollbar-thumb{ background:var(--bg-elevated-3); border-radius:10px; }
::-webkit-scrollbar-thumb:hover{ background:var(--brand-green-dark); }

/* -------------------------------- Layout --------------------------------- */
.container{ width:100%; max-width:var(--container); margin-inline:auto; padding-inline:24px; }
.section{ padding-block: 120px; position:relative; }
.section--tight{ padding-block: 80px; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head.center{ margin-inline:auto; text-align:center; }

/* Plate-tag: a label styled like a vehicle registration plate — the site's
   recurring structural motif instead of generic 01/02/03 numbering. */
.plate{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--font-mono);
  font-size: 12.5px; font-weight:600; letter-spacing:.08em; text-transform:uppercase;
  color: var(--brand-green-light);
  background: rgba(31,191,92,.08);
  border:1px solid rgba(31,191,92,.3);
  padding:7px 14px 7px 10px;
  border-radius: var(--r-full);
  margin-bottom:20px;
}
.plate::before{
  content:''; width:7px; height:7px; border-radius:50%;
  background: var(--brand-green);
  box-shadow: 0 0 10px 2px rgba(31,191,92,.7);
}

.eyebrow{ color:var(--brand-green-light); font-family:var(--font-mono); font-size:13px; letter-spacing:.08em; text-transform:uppercase; font-weight:600; }

h1{ font-size: clamp(2.6rem, 4.4vw, 4.4rem); }
h2{ font-size: clamp(2rem, 3.2vw, 2.9rem); }
h3{ font-size: clamp(1.25rem, 1.8vw, 1.5rem); }
.lead{ font-size: clamp(1.05rem, 1.3vw, 1.2rem); color: var(--text-secondary); font-weight:400; }
.text-muted{ color: var(--text-secondary); }
.text-gradient{ background: var(--grad-text); -webkit-background-clip:text; background-clip:text; color:transparent; }

/* -------------------------------- Buttons --------------------------------- */
.btn{
  position:relative; overflow:hidden; isolation:isolate;
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  font-weight:600; font-size:15px; letter-spacing:-.01em;
  padding:14px 26px; border-radius: var(--r-full);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease), border-color .35s var(--ease);
  white-space:nowrap;
}
.btn:active{ transform: scale(.97); }
.btn-primary{
  background: var(--grad-brand); color: var(--text-on-brand);
  box-shadow: 0 8px 24px -6px rgba(31,191,92,.55);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 14px 34px -6px rgba(31,191,92,.7); }
.btn-secondary{
  background: rgba(255,255,255,.04); color:var(--text-primary);
  border:1px solid var(--border-soft-2);
  backdrop-filter: blur(6px);
}
.btn-secondary:hover{ background: rgba(255,255,255,.08); border-color: var(--border-glow); transform: translateY(-2px); }
.btn-ghost{ color: var(--text-secondary); padding:14px 8px; }
.btn-ghost:hover{ color: var(--text-primary); }
.btn-block{ width:100%; }
.btn-sm{ padding:10px 18px; font-size:13.5px; }

/* Ripple effect element injected by JS */
.btn .ripple{
  position:absolute; border-radius:50%; transform:scale(0);
  background: rgba(255,255,255,.5); pointer-events:none;
  animation: ripple .6s var(--ease) forwards;
}
.btn-primary .ripple{ background: rgba(6,20,11,.35); }

/* -------------------------------- Navbar --------------------------------- */
.navbar{
  position:fixed; inset:0 0 auto 0; height:var(--nav-h); z-index:1000;
  display:flex; align-items:center;
  transition: background .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
  border-bottom:1px solid transparent;
}
.navbar.is-scrolled{
  background: rgba(12,14,17,.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border-soft);
  box-shadow: var(--shadow-sm);
}
.navbar__inner{ width:100%; display:flex; align-items:center; justify-content:space-between; gap:24px; }
.navbar__brand{ display:flex; align-items:center; gap:10px; }
.navbar__brand img{ height:28px; width:auto; }
.navbar__links{ display:flex; align-items:center; gap:4px; }
.navbar__links a{
  position:relative; padding:10px 16px; font-size:14.5px; font-weight:500; color:var(--text-secondary);
  border-radius: var(--r-full); transition: color .25s var(--ease), background .25s var(--ease);
}
.navbar__links a:hover{ color:var(--text-primary); background:rgba(255,255,255,.05); }
.navbar__links a.active{ color: var(--brand-green-light); background: rgba(31,191,92,.1); }
.navbar__cta{ display:flex; align-items:center; gap:10px; }
.navbar__toggle{ display:none; width:40px; height:40px; border-radius:10px; align-items:center; justify-content:center; }
.navbar__toggle span, .navbar__toggle span::before, .navbar__toggle span::after{
  content:''; display:block; width:20px; height:2px; background:var(--text-primary); border-radius:2px; position:relative; transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.navbar__toggle span::before{ position:absolute; top:-7px; }
.navbar__toggle span::after{ position:absolute; top:7px; }
.navbar__toggle.is-open span{ background:transparent; }
.navbar__toggle.is-open span::before{ top:0; transform: rotate(45deg); }
.navbar__toggle.is-open span::after{ top:0; transform: rotate(-45deg); }

.mobile-menu{
  position:fixed; inset:var(--nav-h) 0 0 0; z-index:999;
  background: rgba(10,12,15,.98); backdrop-filter: blur(20px);
  transform: translateY(-8px); opacity:0; pointer-events:none;
  transition: transform .35s var(--ease), opacity .35s var(--ease);
  padding: 28px 24px; overflow-y:auto;
}
.mobile-menu.is-open{ transform:none; opacity:1; pointer-events:auto; }
.mobile-menu a{ display:block; padding:16px 4px; font-size:1.15rem; font-weight:600; border-bottom:1px solid var(--border-soft); color:var(--text-primary); }
.mobile-menu .btn{ margin-top:24px; }

/* -------------------------------- Cards --------------------------------- */
.card{
  position:relative; background: var(--bg-elevated); border:1px solid var(--border-soft);
  border-radius: var(--r-lg); padding:32px; overflow:hidden;
  transition: transform .4s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease), background .4s var(--ease);
}
.card::before{ content:''; position:absolute; inset:0; background:var(--grad-card); pointer-events:none; }
.card:hover{ transform: translateY(-6px); border-color: var(--border-glow); box-shadow: var(--shadow-md); background: var(--bg-elevated-2); }
.card--glass{
  background: rgba(255,255,255,.035);
  border:1px solid var(--border-soft);
  backdrop-filter: blur(14px);
}
.card__icon{
  width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center;
  background: rgba(31,191,92,.1); color: var(--brand-green-light); margin-bottom:20px;
  border: 1px solid rgba(31,191,92,.25);
}
.card__icon svg{ width:24px; height:24px; }
.card h3{ margin-bottom:10px; }
.card p{ color:var(--text-secondary); font-size:14.5px; }

/* Divider styled like a gauge sweep */
.gauge-divider{ display:flex; align-items:center; gap:14px; margin: 0 0 56px; color:var(--text-tertiary); }
.gauge-divider::before,.gauge-divider::after{ content:''; flex:1; height:1px; background:linear-gradient(90deg, transparent, var(--border-soft-2), transparent); }

/* -------------------------------- Stats --------------------------------- */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--border-soft); border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--border-soft); }
.stat{ background: var(--bg-elevated); padding:36px 24px; text-align:center; }
.stat__num{ font-family:var(--font-mono); font-size:clamp(1.8rem,3vw,2.6rem); font-weight:600; color:var(--text-primary); }
.stat__label{ margin-top:8px; font-size:13.5px; color:var(--text-secondary); }

/* -------------------------------- Footer --------------------------------- */
.footer{ background: var(--bg-base-2); border-top:1px solid var(--border-soft); padding-block:80px 32px; }
.footer__grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:56px; }
.footer__brand img{ height:26px; margin-bottom:16px; }
.footer__brand p{ color:var(--text-secondary); font-size:14px; max-width:280px; }
.footer h4{ font-family:var(--font-body); font-size:13.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--text-primary); margin-bottom:18px; }
.footer ul li{ margin-bottom:12px; }
.footer ul a{ color:var(--text-secondary); font-size:14.5px; transition:color .25s var(--ease); }
.footer ul a:hover{ color:var(--brand-green-light); }
.footer__social{ display:flex; gap:10px; margin-top:20px; }
.footer__social a{ width:38px; height:38px; border-radius:10px; border:1px solid var(--border-soft); display:flex; align-items:center; justify-content:center; transition: all .25s var(--ease); }
.footer__social a:hover{ border-color:var(--border-glow); background:rgba(31,191,92,.1); color:var(--brand-green-light); }
.footer__newsletter{ display:flex; gap:8px; margin-top:14px; }
.footer__newsletter input{ flex:1; background:var(--bg-elevated); border:1px solid var(--border-soft); border-radius:var(--r-full); padding:10px 16px; font-size:13.5px; }
.footer__bottom{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; padding-top:28px; border-top:1px solid var(--border-soft); color:var(--text-tertiary); font-size:13px; }
.footer__bottom a{ color:var(--text-tertiary); }
.footer__bottom a:hover{ color:var(--text-secondary); }
.footer__legal{ display:flex; gap:18px; flex-wrap:wrap; }

/* -------------------------------- Utilities --------------------------------- */
.mt-0{margin-top:0;} .center{ text-align:center; }
.grid{ display:grid; gap:24px; }
.flex{ display:flex; }
.gap-8{gap:8px;} .gap-12{gap:12px;} .gap-16{gap:16px;} .gap-24{gap:24px;}
.badge{
  display:inline-flex; align-items:center; gap:6px; font-size:12px; font-weight:700;
  padding:5px 11px; border-radius:var(--r-full); font-family:var(--font-mono); letter-spacing:.02em;
}
.badge--discount{ background: rgba(245,166,35,.14); color:var(--brand-amber); border:1px solid rgba(245,166,35,.35); }
.badge--popular{ background: var(--grad-brand); color:var(--text-on-brand); }
.skip-link{ position:absolute; left:-9999px; top:auto; background:var(--brand-green); color:var(--text-on-brand); padding:12px 20px; border-radius:8px; z-index:2000; }
.skip-link:focus{ left:20px; top:20px; }

.section-bg-glow{ position:absolute; inset:0; background: var(--grad-glow); pointer-events:none; z-index:0; }
.section > .container{ position:relative; z-index:1; }