/* =========================================================
   SAM OIL PRO — uslublar (styles)
   G'oya (layout): riseoilgroup.com kabi vazmin, to'q "sanoat" uslubi.
   To'q polosalar (hero, obyektlar, aloqa) va yorug' polosalar
   (katalog, hujjatlar) navbatma-navbat keladi. Urg'u — yoqilg'i sarig'i.
   ========================================================= */

/* --- 1. O'zgaruvchilar (CSS variables) --- */
:root {
  --bg: #f2f4f3;          /* yorug' bo'lim foni */
  --surface: #ffffff;     /* kartalar */
  --ink: #111816;         /* matn */
  --muted: #5d6b67;       /* ikkinchi darajali matn */
  --line: #dbe2df;        /* chiziqlar */
  --accent: #f0a81c;      /* yoqilg'i sarig'i */
  --accent-2: #ff7a29;    /* gradient ikkinchi rangi */
  --accent-ink: #1a1203;  /* sariq ustidagi matn */
  --teal: #19b3a6;
  --band: #101413;        /* to'q bo'limlar (Rise kabi deyarli qora) */
  --band-2: #172320;
  --band-fg: #ecf1ef;
  --dark-card: #1b1f1e;   /* qora mahsulotlar kartasi */
  --shadow: 0 14px 34px -16px rgb(16 20 19 / .3);

  --f-display: "Unbounded", "Arial Black", sans-serif;
  --f-body: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", Consolas, monospace;
  --r-sm: 10px;
  --r-lg: 18px;
}
/* Qorong'i rejim (dark mode) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0f0e; --surface: #151a19; --ink: #e9efed; --muted: #95a4a0;
    --line: #26302d; --band: #070908; --band-2: #101816; --dark-card: #0b0d0c;
    --shadow: 0 14px 34px -16px rgb(0 0 0 / .7); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0c0f0e; --surface: #151a19; --ink: #e9efed; --muted: #95a4a0;
  --line: #26302d; --band: #070908; --band-2: #101816; --dark-card: #0b0d0c;
  --shadow: 0 14px 34px -16px rgb(0 0 0 / .7); color-scheme: dark;
}

/* --- 2. Asosiy sozlamalar --- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 var(--f-body); }
img { max-width: 100%; }
h1, h2, h3, h4 { font-family: var(--f-display); line-height: 1.15; text-wrap: balance; margin: 0; letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.5rem); }
h3, h4 { font-size: 1.02rem; font-weight: 500; }
p { margin: 0; }
a { color: inherit; }
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.todo { color: var(--muted); font-style: italic; }
.wrap {
  max-width: 1200px; margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
/* Gradient matn (gradient text) */
.grade, .logo-text b, .hero h1 em, .stat-n {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* --- 3. Tugmalar --- */
.btn {
  display: inline-flex; align-items: center; padding: 13px 26px; border-radius: 999px;
  border: 1px solid transparent; font: 600 1rem var(--f-body); text-decoration: none; cursor: pointer;
  transition: transform .2s, background .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(100deg, var(--accent), var(--accent-2)); color: var(--accent-ink); }
.btn-ghost { border-color: color-mix(in srgb, var(--band-fg) 35%, transparent); color: var(--band-fg); }
.btn-ghost:hover { background: color-mix(in srgb, var(--band-fg) 10%, transparent); }

/* --- 4. Top bar va header --- */
.topbar { background: var(--band); color: color-mix(in srgb, var(--band-fg) 70%, transparent); font-size: .85rem; }
.topbar-row { display: flex; align-items: center; gap: 20px; padding-block: 8px; }
.topbar a { text-decoration: none; color: var(--band-fg); }
.topbar-addr { margin-right: auto; }
.lang { display: flex; gap: 2px; padding: 3px; border-radius: 999px; background: color-mix(in srgb, var(--band-fg) 10%, transparent); }
.lang button { background: none; border: 0; color: var(--band-fg); padding: 4px 11px; border-radius: 999px; cursor: pointer; font: 600 .75rem var(--f-mono); }
.lang .is-active { background: var(--accent); color: var(--accent-ink); }

.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; color: var(--band-fg);
  background: color-mix(in srgb, var(--band) 94%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);    /* "shisha" effekti */
  border-block: 1px solid color-mix(in srgb, var(--band-fg) 8%, transparent);
  transition: box-shadow .3s;
}
.site-header.is-scrolled { box-shadow: 0 8px 30px -10px rgb(0 0 0 / .5); }
.header-row { display: flex; align-items: center; gap: 16px; padding-block: 12px; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-mark { width: 24px; height: 30px; flex: none; filter: drop-shadow(0 0 10px color-mix(in srgb, var(--accent) 45%, transparent)); }
.logo-text { font-family: var(--f-display); font-size: 1.05rem; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.main-nav a { text-decoration: none; padding: 8px 13px; border-radius: 999px; opacity: .85; transition: background .2s; }
.main-nav a:hover { opacity: 1; background: color-mix(in srgb, var(--band-fg) 10%, transparent); }
.main-nav .nav-cta { background: var(--accent); color: var(--accent-ink); opacity: 1; font-weight: 600; margin-left: 6px; }
.main-nav .nav-cta:hover { background: var(--accent-2); }
.menu-btn { display: none; margin-left: auto; background: none; color: inherit; border: 1px solid currentColor; border-radius: 999px; padding: 6px 16px; font: inherit; }

/* --- 5. Hero --- */
.hero { position: relative; overflow: hidden; color: var(--band-fg); background: linear-gradient(180deg, var(--band), var(--band-2)); padding-block: 88px 56px; }
.hero-glow {
  position: absolute; inset: -20%; pointer-events: none; filter: blur(20px);
  background:
    radial-gradient(38% 34% at 78% 28%, color-mix(in srgb, var(--accent-2) 32%, transparent), transparent 70%),
    radial-gradient(32% 28% at 15% 85%, color-mix(in srgb, var(--teal) 22%, transparent), transparent 70%);
  animation: drift 18s ease-in-out infinite alternate;
}
@keyframes drift { to { transform: translate(-4%, 3%) scale(1.06); } }
.hero::after { /* nozik to'r naqshi */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--band-fg) 5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--band-fg) 5%, transparent) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse at 65% 35%, #000 15%, transparent 70%);
  mask-image: radial-gradient(ellipse at 65% 35%, #000 15%, transparent 70%);
}
/* Hero fotosi: rasm ustiga ikki qatlam gradient — chapda to'q (matn o'qilsin), pastda sahifaga silliq o'tish.
   background'da bir nechta qatlam vergul bilan yoziladi; birinchisi eng ustda turadi */
.hero-photo {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, var(--band) 0%, color-mix(in srgb, var(--band) 75%, transparent) 45%, color-mix(in srgb, var(--band) 35%, transparent) 100%),
    linear-gradient(0deg, var(--band) 0%, transparent 40%),
    url("images/hero.jpg") center / cover no-repeat;
  animation: zoom 24s ease-out both;   /* juda sekin yaqinlashish — "kino" effekti */
}
@keyframes zoom { from { transform: scale(1.08); } }
.hero-inner { position: relative; z-index: 1; animation: rise .8s cubic-bezier(.2,.7,.2,1) both; }
@keyframes rise { from { transform: translateY(16px); opacity: .001; } }
.eyebrow {
  display: inline-block; font: 500 .74rem var(--f-mono); letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
}
.hero h1 { font-size: clamp(2.1rem, 5.6vw, 4.2rem); font-weight: 700; max-width: 16ch; }
.hero h1 em { padding-right: .08em; }
.lead { margin-top: 22px; max-width: 58ch; font-size: 1.12rem; color: color-mix(in srgb, var(--band-fg) 78%, transparent); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* Raqamlar qatori */
/* Raqamlar paneli rasm ustida turadi, shuning uchun xira "shisha" fon beramiz */
.stats {
  margin: 64px 0 0; display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 0 24px 24px; border-radius: var(--r-lg);
  background: color-mix(in srgb, var(--band) 80%, transparent);
  border: 1px solid color-mix(in srgb, var(--band-fg) 12%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.stats div { padding: 24px 20px 0 0; display: grid; gap: 6px; align-content: start; }
.stats div + div { padding-left: 20px; border-left: 1px solid color-mix(in srgb, var(--band-fg) 14%, transparent); }
.stat-n { font: 700 clamp(2rem, 4vw, 3rem)/1 var(--f-display); justify-self: start; }
.stats dd { margin: 0; color: color-mix(in srgb, var(--band-fg) 70%, transparent); font-size: .95rem; }

/* --- 6. Bo'limlar (umumiy) --- */
.section { padding-block: 88px; }
.section-alt { background: var(--surface); }
.section-dark { background: linear-gradient(160deg, var(--band-2), var(--band)); color: var(--band-fg); }
.section-head { display: grid; gap: 10px; max-width: 70ch; }
.section-note { color: var(--muted); }
.two-col { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; }
.about-art { margin: 28px 0 0; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); }
.about-art img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; } /* object-fit: cover — rasm cho'zilmaydi, chetlari qirqiladi */

/* Obyektlar bo'limi foni: mashina fotosi + to'q qatlam */
.geo-photo {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--band) 85%, transparent), color-mix(in srgb, var(--band) 55%, transparent)),
    url("images/logistika.jpg") center / cover no-repeat,
    linear-gradient(160deg, var(--band-2), var(--band));
}
.prose { display: grid; gap: 16px; align-content: start; max-width: 65ch; font-size: 1.06rem; }
.sub-title { margin-top: 56px; font-size: 1.2rem; }

/* Mahsulotlar */
.group-title { display: flex; align-items: center; gap: 10px; margin: 48px 0 18px; font: 500 .8rem var(--f-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-light { background: var(--accent); }
.dot-dark { background: var(--ink); }
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; } /* auto-fit — kartalar qatorni to'liq egallaydi */
.product-grid-dark { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); } /* 2 ta karta haddan tashqari cho'zilmasin */
.product {
  position: relative; overflow: hidden; display: grid; gap: 8px; align-content: start;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 24px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.product:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); }
.product::before { /* burchakdagi yorug'lik */
  content: ""; position: absolute; top: -60px; right: -60px; width: 140px; height: 140px; border-radius: 50%;
  background: radial-gradient(color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%);
}
.product-dark { background: var(--dark-card); color: #ecf1ef; border-color: #2a302e; } /* qora mahsulot — qora karta */
.product-dark p { color: #a7b3af !important; }
.grade { font: 700 1.9rem var(--f-display); justify-self: start; }
.product p { color: var(--muted); flex: 1; }
.ask {
  justify-self: start; margin-top: 10px; padding: 0; border: 0; background: none; cursor: pointer;
  font: 600 .92rem var(--f-body); color: var(--accent-2);
}
.ask:hover { text-decoration: underline; }

/* Mijozlar — "chip" (teg) ko'rinishida */
.clients { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.clients li { padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); }

/* Obyektlar */
.sites { margin-top: 36px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.site-card {
  display: grid; gap: 10px; align-content: start; padding: 28px; border-radius: var(--r-lg);
  background: color-mix(in srgb, var(--band-fg) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--band-fg) 12%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); /* fon fotosi ustida xira shisha */
}
.site-region { font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.site-card h3 { font-size: 1.3rem; }
.site-card p:not(.site-region) { color: color-mix(in srgb, var(--band-fg) 75%, transparent); }
.link { color: var(--accent); font-weight: 600; text-decoration: none; margin-top: 6px; }
.link:hover { text-decoration: underline; }

/* Hamkorlik bosqichlari */
.steps { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps li { display: grid; gap: 8px; align-content: start; padding: 24px; border-radius: var(--r-lg); background: var(--surface); border: 1px solid var(--line); }
.step-n { font: 500 .8rem var(--f-mono); color: var(--accent-2); }
.steps p { color: var(--muted); }

/* Hujjatlar ro'yxati */
.docs { list-style: none; padding: 0; margin: 36px 0 0; display: grid; gap: 10px; }
.docs a {
  display: grid; grid-template-columns: 52px 1fr; column-gap: 18px; row-gap: 2px; align-items: center;
  padding: 18px 22px; border-radius: var(--r-sm); border: 1px solid var(--line); background: var(--bg);
  text-decoration: none; transition: border-color .2s, transform .2s;
}
.docs a::before { /* "PDF" belgisi */
  content: "PDF"; grid-row: span 3; display: grid; place-items: center; height: 52px; border-radius: 8px;
  font: 600 .72rem var(--f-mono); color: var(--accent-ink); background: var(--accent);
}
.docs a:hover { border-color: var(--accent); transform: translateX(4px); }
.doc-no { font-size: .78rem; color: var(--muted); }
.doc-name { font-weight: 600; }
.doc-org { font-size: .88rem; color: var(--muted); }

/* Rekvizitlar jadvali */
.requisites { margin: 36px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 0 32px; }
.requisites div { display: flex; justify-content: space-between; gap: 16px; padding-block: 12px; border-bottom: 1px dashed var(--line); }
.requisites dt { color: var(--muted); }
.requisites dd { margin: 0; text-align: right; min-width: 0; overflow-wrap: anywhere; }

/* --- 7. Aloqa --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.lead-sm { margin-top: 12px; color: color-mix(in srgb, var(--band-fg) 75%, transparent); }
.contact-list { margin: 28px 0 0; display: grid; gap: 20px; }
.contact-list dt { font: 500 .72rem var(--f-mono); text-transform: uppercase; letter-spacing: .12em; opacity: .6; }
.contact-list dd { margin: 4px 0 0; }
.contact-list .mail { color: var(--band-fg); }
.contact-list .big { font: 500 clamp(1.3rem, 3vw, 1.7rem) var(--f-display); text-decoration: none; color: var(--accent); }
.contact-form {
  display: grid; gap: 8px; align-content: start; padding: 30px; border-radius: var(--r-lg);
  background: color-mix(in srgb, var(--band-fg) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--band-fg) 12%, transparent);
}
.contact-form label { font-size: .9rem; opacity: .8; }
.contact-form input, .contact-form textarea, .contact-form select {
  font: inherit; width: 100%; padding: 12px 16px; margin-bottom: 10px; border-radius: var(--r-sm);
  color: var(--band-fg); background: color-mix(in srgb, var(--band) 70%, transparent);
  border: 1px solid color-mix(in srgb, var(--band-fg) 18%, transparent);
}
.contact-form select option { color: #111; }   /* ochilgan ro'yxat oq fonda o'qilsin */
.contact-form :is(input, textarea, select):focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }
.contact-form .btn { justify-self: start; margin-top: 4px; }
/* Honeypot maydonini ekrandan tashqariga chiqaramiz (display:none ishlatmaymiz — ba'zi robotlar uni aniqlaydi) */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.contact-form { position: relative; }
.form-status { min-height: 1.6em; font-size: .92rem; }

/* --- 8. Footer --- */
.site-footer { background: var(--band); color: color-mix(in srgb, var(--band-fg) 65%, transparent); font-size: .88rem; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding-block: 24px; }
.footer-nav { display: flex; gap: 20px; }
.footer-nav a { text-decoration: none; }
.footer-nav a:hover { color: var(--accent); }

/* --- 9. Moslashuvchan dizayn (responsive) --- */
@media (max-width: 960px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats div:nth-child(3) { padding-left: 0; border-left: 0; }
}
@media (max-width: 800px) {
  .two-col, .contact-grid, .sites, .steps { grid-template-columns: 1fr; }
  .section { padding-block: 64px; }
  .hero { padding-block: 64px 48px; }
  .topbar-addr, .topbar-mail { display: none; }
  .topbar-row { justify-content: space-between; }
  .menu-btn { display: block; }
  .main-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: flex-start; gap: 4px;
    padding: 16px max(20px, env(safe-area-inset-left, 0px)) 20px; background: var(--band);
  }
  .main-nav.is-open { display: flex; }
  .main-nav .nav-cta { margin: 6px 0 0; }
}
@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .docs a { grid-template-columns: 1fr; padding: 16px; }
  .docs a::before { grid-row: auto; width: 44px; height: 30px; }
  .requisites div { flex-direction: column; gap: 2px; }
  .requisites dd { text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}