/* ============================================================
   OKSOLAR — Modern Energy Storage Website
   Brand: Deep Navy #16225C / #0B1230 + Brand Orange #F7941D
   ============================================================ */

:root {
    --navy-950: #070C22;
    --navy-900: #0B1230;
    --navy-800: #101A45;
    --navy-700: #16225C;
    --navy-600: #1E2F97;
    --navy-500: #2B3990;
    --orange: #F7941D;
    --orange-light: #FFB347;
    --orange-soft: rgba(247, 148, 29, .14);
    --ink: #101733;
    --ink-soft: #4A5473;
    --line: #E6EAF4;
    --bg: #FFFFFF;
    --bg-soft: #F5F7FC;
    --radius: 20px;
    --radius-lg: 28px;
    --shadow-sm: 0 6px 24px rgba(16, 26, 69, .07);
    --shadow-md: 0 16px 48px rgba(16, 26, 69, .10);
    --shadow-lg: 0 28px 80px rgba(16, 26, 69, .16);
    --font-display: "Sora", "Segoe UI", system-ui, -apple-system, sans-serif;
    --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    --ease: cubic-bezier(.22, .8, .3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--bg);
    line-height: 1.65;
    -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; }

.container { width: min(1200px, 92%); margin-inline: auto; }

::selection { background: var(--orange); color: #fff; }

/* ---------- Preloader ---------- */
.preloader {
    position: fixed; inset: 0; z-index: 9999;
    background: var(--navy-900);
    display: flex; flex-direction: column; gap: 22px;
    align-items: center; justify-content: center;
    transition: opacity .6s var(--ease), visibility .6s;
}
.preloader.is-done { opacity: 0; visibility: hidden; }
.preloader__ring {
    width: 54px; height: 54px; border-radius: 50%;
    border: 4px solid rgba(247, 148, 29, .2);
    border-top-color: var(--orange);
    animation: spin 1s linear infinite;
}
.preloader__text {
    font-family: var(--font-display); font-weight: 800;
    letter-spacing: .35em; color: #fff; font-size: 14px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Top bar ---------- */
.topbar {
    background: var(--navy-950);
    color: #AEB8D8;
    font-size: 13px;
    position: relative; z-index: 60;
}
.topbar__inner {
    display: flex; justify-content: space-between; align-items: center;
    min-height: 42px; gap: 16px; flex-wrap: wrap;
}
.topbar__left, .topbar__right { display: flex; align-items: center; gap: 22px; }
.topbar__item { display: inline-flex; align-items: center; gap: 7px; }
.topbar__item a:hover { color: var(--orange-light); }
.topbar__item svg { width: 14px; height: 14px; fill: var(--orange); flex: none; }
.topbar__item--address { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 430px; }
.topbar__badge {
    background: var(--orange-soft); color: var(--orange-light);
    border: 1px solid rgba(247, 148, 29, .35);
    padding: 3px 12px; border-radius: 99px; font-weight: 600; font-size: 12px;
    white-space: nowrap;
}

/* ---------- Header ---------- */
.header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, .93);
    border-bottom: 1px solid transparent;
    transition: box-shadow .3s, border-color .3s, background .3s;
}
.header.is-stuck {
    background: rgba(255, 255, 255, .97);
    border-bottom-color: var(--line);
    box-shadow: 0 8px 30px rgba(11, 18, 48, .08);
}
.header__inner { display: flex; align-items: center; gap: 28px; min-height: 78px; }
.header__logo img { height: 42px; width: auto; }
.header__cta { margin-left: auto; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__link {
    position: relative;
    font-weight: 600; font-size: 15px; color: var(--ink-soft);
    padding: 10px 14px; border-radius: 10px;
    transition: color .25s;
}
.nav__link::after {
    content: ""; position: absolute; left: 14px; right: 14px; bottom: 6px;
    height: 2px; border-radius: 2px;
    background: linear-gradient(90deg, var(--orange), var(--orange-light));
    transform: scaleX(0); transform-origin: left;
    transition: transform .3s var(--ease);
}
.nav__link:hover, .nav__link.is-active { color: var(--navy-700); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); }
.nav .nav__cta { display: none; }

.burger { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 70; }
.burger span {
    width: 26px; height: 3px; border-radius: 3px;
    background: var(--navy-700);
    transition: transform .3s var(--ease), opacity .3s, background .3s;
}
.burger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    font-weight: 700; font-size: 15px;
    padding: 12px 24px; border-radius: 14px;
    transition: transform .25s var(--ease), box-shadow .25s, background .25s, color .25s, border-color .25s;
    will-change: transform;
}
.btn svg { width: 17px; height: 17px; fill: currentColor; }
.btn--lg { padding: 15px 30px; font-size: 16px; border-radius: 16px; }
.btn--block { width: 100%; }

.btn--primary {
    background: linear-gradient(120deg, var(--orange) 0%, #FFA53E 100%);
    color: #fff;
    box-shadow: 0 10px 26px rgba(247, 148, 29, .35);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(247, 148, 29, .45); }

.btn--ghost {
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, .35);
    background: rgba(255, 255, 255, .06);
    backdrop-filter: blur(6px);
}
.btn--ghost:hover { border-color: var(--orange); color: var(--orange-light); transform: translateY(-3px); }

.btn--dark {
    background: var(--navy-700); color: #fff;
    box-shadow: 0 10px 26px rgba(22, 34, 92, .28);
}
.btn--dark:hover { background: var(--navy-600); transform: translateY(-3px); }

/* ---------- Tags / section heads ---------- */
.tag {
    display: inline-flex; align-items: center; gap: 9px;
    font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
    color: var(--navy-600);
    background: rgba(30, 47, 151, .08);
    border: 1px solid rgba(30, 47, 151, .16);
    padding: 7px 16px; border-radius: 99px;
}
.tag--light { color: var(--orange-light); background: rgba(247, 148, 29, .1); border-color: rgba(247, 148, 29, .3); }
.tag__dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--orange);
    box-shadow: 0 0 0 4px var(--orange-soft);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 3px var(--orange-soft); }
    50% { box-shadow: 0 0 0 7px rgba(247, 148, 29, .05); }
}

.section { padding: 110px 0; }
.section__head { max-width: 720px; margin: 0 auto 60px; text-align: center; }
.section__title {
    font-family: var(--font-display);
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.18; font-weight: 800; letter-spacing: -.02em;
    margin: 18px 0 16px;
}
.section__title--light { color: #fff; }
.section__sub { color: var(--ink-soft); font-size: 17px; }
.section__sub--light { color: #A7B1D4; }

.grad-text {
    background: linear-gradient(100deg, var(--orange) 10%, var(--orange-light) 55%, #FF8A3C 90%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    background:
        radial-gradient(1100px 520px at 85% -10%, rgba(43, 57, 144, .55), transparent 60%),
        radial-gradient(900px 480px at -10% 110%, rgba(247, 148, 29, .12), transparent 55%),
        linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 45%, var(--navy-800) 100%);
    color: #fff;
    overflow: hidden;
    padding: 120px 0 130px;
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(75% 65% at 50% 40%, #000 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(75% 65% at 50% 40%, #000 30%, transparent 100%);
}
.hero__glow { position: absolute; border-radius: 50%; filter: blur(90px); }
.hero__glow--1 { width: 460px; height: 460px; right: -80px; top: -120px; background: rgba(247, 148, 29, .22); }
.hero__glow--2 { width: 380px; height: 380px; left: -120px; bottom: -140px; background: rgba(43, 57, 144, .5); }
.hero__sun {
    position: absolute; width: 210px; height: 210px;
    right: 6%; top: 9%; color: var(--orange);
    opacity: .5;
    animation: sunSpin 60s linear infinite;
}
@keyframes sunSpin { to { transform: rotate(360deg); } }

.hero__inner {
    position: relative; z-index: 2;
    display: grid; grid-template-columns: 1.08fr .92fr;
    gap: 64px; align-items: center;
}
.hero__title {
    font-family: var(--font-display);
    font-size: clamp(38px, 5vw, 62px);
    line-height: 1.08; letter-spacing: -.025em; font-weight: 800;
    margin: 22px 0 20px;
}
.hero__sub { color: #B7C0DE; font-size: 17.5px; max-width: 520px; }
.hero__sub strong { color: #fff; }
.hero__actions { display: flex; gap: 14px; margin: 34px 0 44px; flex-wrap: wrap; }

.hero__stats {
    display: grid; grid-template-columns: repeat(4, auto);
    gap: 12px 38px; justify-content: start;
    border-top: 1px solid rgba(255, 255, 255, .12);
    padding-top: 28px;
}
.hero__stats li { display: flex; flex-direction: column; }
.hero__stats strong {
    font-family: var(--font-display);
    font-size: clamp(24px, 2.6vw, 34px); font-weight: 800;
    background: linear-gradient(100deg, #fff, #C9D4FF);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    line-height: 1.15;
}
.hero__stats span { font-size: 12.5px; color: #8E99C2; margin-top: 4px; letter-spacing: .02em; }

.hero__visual { position: relative; }
.hero__window {
    background: linear-gradient(180deg, #FFFFFF, #EDF1FB);
    border-radius: var(--radius-lg);
    padding: 26px 26px 20px;
    box-shadow: 0 40px 100px rgba(0, 0, 0, .45), 0 0 0 1px rgba(255, 255, 255, .08);
    position: relative;
    animation: floaty 7s ease-in-out infinite;
}
.hero__window::before {
    content: ""; position: absolute; inset: -2px;
    border-radius: calc(var(--radius-lg) + 2px);
    background: linear-gradient(135deg, rgba(247,148,29,.75), rgba(43,57,144,.45) 45%, rgba(247,148,29,.2));
    z-index: -1; filter: blur(1px);
}
@keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-14px); }
}
.hero__window-bar { display: flex; gap: 7px; margin-bottom: 16px; }
.hero__window-bar span { width: 10px; height: 10px; border-radius: 50%; background: #DDE3F2; }
.hero__window-bar span:first-child { background: var(--orange); }
.hero__window img { border-radius: 14px; width: 100%; }

.hero__chip {
    position: absolute;
    display: inline-flex; align-items: center; gap: 9px;
    background: rgba(255, 255, 255, .97);
    color: var(--ink);
    font-weight: 700; font-size: 13.5px;
    padding: 11px 16px; border-radius: 14px;
    box-shadow: 0 18px 44px rgba(0, 0, 0, .35);
    white-space: nowrap;
}
.hero__chip svg { width: 17px; height: 17px; fill: var(--orange); flex: none; }
.hero__chip--1 { top: 6%; left: -34px; animation: floaty 6s .4s ease-in-out infinite; }
.hero__chip--2 { bottom: 22%; right: -26px; animation: floaty 6.8s 1.1s ease-in-out infinite; }
.hero__chip--3 { bottom: -16px; left: 8%; animation: floaty 7.6s .8s ease-in-out infinite; }

.hero__scroll {
    position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
    width: 26px; height: 44px; border-radius: 99px;
    border: 2px solid rgba(255, 255, 255, .3);
    display: flex; justify-content: center; padding-top: 8px;
    transition: border-color .3s;
}
.hero__scroll:hover { border-color: var(--orange); }
.hero__scroll span {
    width: 4px; height: 9px; border-radius: 4px;
    background: var(--orange);
    animation: scrollDot 1.6s infinite;
}
@keyframes scrollDot {
    0% { transform: translateY(0); opacity: 1; }
    70% { transform: translateY(14px); opacity: 0; }
    100% { transform: translateY(0); opacity: 0; }
}

/* ---------- Marquee ---------- */
.marquee {
    background: linear-gradient(90deg, var(--navy-700), var(--navy-600));
    color: #fff; overflow: hidden; padding: 15px 0;
    border-block: 1px solid rgba(255, 255, 255, .08);
}
.marquee__track {
    display: flex; gap: 34px; align-items: center;
    width: max-content;
    animation: marquee 26s linear infinite;
    font-family: var(--font-display); font-weight: 700;
    font-size: 15px; letter-spacing: .06em; text-transform: uppercase;
}
.marquee__track i { color: var(--orange); font-style: normal; font-size: 9px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- About ---------- */
.about { background: var(--bg); }
.about__inner {
    display: grid; grid-template-columns: .95fr 1.05fr;
    gap: 72px; align-items: center;
}
.about__media { position: relative; }
.about__img-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, #fff, #F2F5FB);
}
.about__badge {
    position: absolute; top: -24px; right: -18px;
    background: linear-gradient(130deg, var(--orange), #FFA53E);
    color: #fff; border-radius: 22px;
    padding: 18px 24px; text-align: center;
    box-shadow: 0 18px 40px rgba(247, 148, 29, .4);
}
.about__badge strong { display: block; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; opacity: .9; }
.about__badge span { font-family: var(--font-display); font-size: 30px; font-weight: 800; line-height: 1.1; }
.about__flag {
    position: absolute; bottom: -26px; left: 22px;
    background: rgba(255, 255, 255, .96);
    border: 1px solid var(--line);
    border-radius: 18px; padding: 14px 18px;
    display: flex; flex-direction: column; gap: 8px;
    box-shadow: var(--shadow-md);
    font-weight: 700; font-size: 14px;
}
.about__flag-row { display: inline-flex; gap: 9px; align-items: center; }
.flag-dot {
    display: inline-flex; align-items: center; justify-content: center;
    width: 26px; height: 26px; border-radius: 8px;
    background: var(--navy-700); color: #fff;
    font-size: 10.5px; font-weight: 800; letter-spacing: .04em;
    font-family: var(--font-display);
}
.flag-dot--orange { background: linear-gradient(130deg, var(--orange), #FFA53E); }

.about__content .section__title { margin-top: 16px; }
.about__content p { color: var(--ink-soft); margin-bottom: 16px; }
.about__content p strong { color: var(--ink); }

.about__facts {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 14px; margin: 30px 0 34px;
}
.about__facts li {
    display: flex; gap: 12px; align-items: flex-start;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 16px; padding: 15px 16px;
    transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.about__facts li:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: rgba(247, 148, 29, .4); }
.about__facts svg { width: 24px; height: 24px; flex: none; color: var(--orange); margin-top: 2px; }
.about__facts strong { display: block; font-size: 13px; color: var(--ink-soft); font-weight: 600; }
.about__facts span { font-family: var(--font-display); font-weight: 700; font-size: 15.5px; color: var(--navy-700); }

/* ---------- Products ---------- */
.products { background: var(--bg-soft); }
.products__grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 26px;
}
.pcard {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex; flex-direction: column;
    transition: transform .35s var(--ease), box-shadow .35s, border-color .35s;
    position: relative;
}
.pcard:hover { transform: translateY(-10px); box-shadow: var(--shadow-md); border-color: rgba(247, 148, 29, .45); }
.pcard__img {
    background: linear-gradient(180deg, #F7F9FE, #EDF1FA);
    padding: 22px;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.pcard__img img { transition: transform .5s var(--ease); }
.pcard:hover .pcard__img img { transform: scale(1.07); }
.pcard__body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.pcard__cap {
    align-self: flex-start;
    font-size: 12px; font-weight: 800; letter-spacing: .08em;
    color: var(--orange);
    background: var(--orange-soft);
    border-radius: 99px; padding: 4px 12px;
    margin-bottom: 10px;
}
.pcard__body h3 { font-family: var(--font-display); font-size: 21px; font-weight: 800; margin-bottom: 12px; }
.pcard__body ul { margin-bottom: 20px; flex: 1; }
.pcard__body ul li {
    position: relative; padding-left: 20px;
    color: var(--ink-soft); font-size: 14px; margin-bottom: 6px;
}
.pcard__body ul li::before {
    content: ""; position: absolute; left: 0; top: 8px;
    width: 8px; height: 8px; border-radius: 3px;
    background: linear-gradient(130deg, var(--orange), var(--orange-light));
}
.pcard__link {
    display: inline-flex; align-items: center; gap: 7px;
    font-weight: 700; font-size: 14.5px; color: var(--navy-600);
    transition: gap .25s, color .25s;
}
.pcard__link svg { width: 16px; height: 16px; fill: currentColor; }
.pcard__link:hover { gap: 12px; color: var(--orange); }

.pcard--hot { border-color: rgba(247, 148, 29, .5); }
.pcard__flag {
    position: absolute; top: 16px; right: 16px; z-index: 2;
    background: linear-gradient(120deg, var(--orange), #FF8A3C);
    color: #fff; font-size: 11.5px; font-weight: 800;
    letter-spacing: .06em; text-transform: uppercase;
    padding: 6px 13px; border-radius: 99px;
    box-shadow: 0 8px 20px rgba(247, 148, 29, .4);
}

/* ---------- Specs (dark) ---------- */
.specs {
    background:
        radial-gradient(900px 420px at 90% 0%, rgba(43, 57, 144, .4), transparent 60%),
        linear-gradient(165deg, var(--navy-950), var(--navy-900) 55%, var(--navy-800));
    color: #fff;
}
.specs__wrap {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, .1);
    background: rgba(255, 255, 255, .03);
    backdrop-filter: blur(8px);
    overflow: auto;
    box-shadow: 0 30px 80px rgba(0, 0, 0, .35);
}
.specs__table { width: 100%; border-collapse: collapse; min-width: 760px; font-size: 14.5px; }
.specs__table thead th {
    position: sticky; top: 0;
    background: rgba(22, 34, 92, .96);
    font-family: var(--font-display);
    font-size: 15px; font-weight: 700; letter-spacing: .02em;
    padding: 18px 20px; text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
    white-space: nowrap;
}
.specs__table thead th:first-child { text-align: left; color: var(--orange-light); }
.specs__table td {
    padding: 13px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    text-align: center; color: #C6CDE8;
}
.specs__table td:first-child {
    text-align: left; font-weight: 600; color: #fff;
    width: 24%; white-space: nowrap;
}
.specs__table tbody tr:hover td { background: rgba(247, 148, 29, .05); }
.specs__table .span-all { color: #E8ECF9; }
.specs__group td {
    background: rgba(247, 148, 29, .1);
    color: var(--orange-light) !important;
    font-family: var(--font-display);
    font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    font-size: 12.5px; text-align: left !important;
    padding: 10px 20px;
}

/* ---------- Features ---------- */
.features { background: var(--bg); }
.features__grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}
.fcard {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 34px 30px;
    transition: transform .35s var(--ease), box-shadow .35s, background .35s, border-color .35s;
    position: relative; overflow: hidden;
}
.fcard::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(130deg, rgba(247, 148, 29, .07), transparent 55%);
    opacity: 0; transition: opacity .35s;
}
.fcard:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); background: #fff; border-color: rgba(247, 148, 29, .4); }
.fcard:hover::after { opacity: 1; }
.fcard__icon {
    width: 62px; height: 62px; border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 22px;
    transition: transform .35s var(--ease);
}
.fcard:hover .fcard__icon { transform: scale(1.08) rotate(-4deg); }
.fcard__icon svg { width: 30px; height: 30px; fill: #fff; }
.fcard__icon--c1 { background: linear-gradient(135deg, #F7941D, #FFB347); box-shadow: 0 12px 26px rgba(247, 148, 29, .35); }
.fcard__icon--c2 { background: linear-gradient(135deg, #1E2F97, #3D4FBF); box-shadow: 0 12px 26px rgba(30, 47, 151, .35); }
.fcard__icon--c3 { background: linear-gradient(135deg, #0EA5A5, #2BD4C8); box-shadow: 0 12px 26px rgba(14, 165, 165, .32); }
.fcard__icon--c4 { background: linear-gradient(135deg, #7C3AED, #A78BFA); box-shadow: 0 12px 26px rgba(124, 58, 237, .32); }
.fcard__icon--c5 { background: linear-gradient(135deg, #E11D63, #F472B0); box-shadow: 0 12px 26px rgba(225, 29, 99, .3); }
.fcard__icon--c6 { background: linear-gradient(135deg, #0B1230, #2B3990); box-shadow: 0 12px 26px rgba(11, 18, 48, .35); }
.fcard h3 { font-family: var(--font-display); font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.fcard p { color: var(--ink-soft); font-size: 14.5px; }

/* ---------- Quality (dark timeline) ---------- */
.quality {
    background:
        radial-gradient(800px 400px at 8% 12%, rgba(247, 148, 29, .08), transparent 55%),
        linear-gradient(165deg, var(--navy-950), var(--navy-900) 60%, #0E1740);
    color: #fff;
}
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding-left: 26px; }
.timeline::before {
    content: ""; position: absolute; left: 0; top: 8px; bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--orange), rgba(247, 148, 29, .06));
}
.tl-item { position: relative; padding: 0 0 34px 26px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
    content: ""; position: absolute; left: -33px; top: 6px;
    width: 14px; height: 14px; border-radius: 50%;
    background: var(--orange);
    box-shadow: 0 0 0 5px rgba(247, 148, 29, .18), 0 0 18px rgba(247, 148, 29, .6);
}
.tl-item__num {
    font-family: var(--font-display);
    font-size: 13px; font-weight: 800; letter-spacing: .2em;
    color: var(--orange-light); margin-bottom: 8px;
}
.tl-item__card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: var(--radius);
    padding: 24px 28px;
    transition: transform .3s var(--ease), border-color .3s, background .3s;
}
.tl-item__card:hover { transform: translateX(8px); border-color: rgba(247, 148, 29, .45); background: rgba(255, 255, 255, .06); }
.tl-item__card h3 { font-family: var(--font-display); font-size: 18.5px; font-weight: 700; margin-bottom: 8px; }
.tl-item__card p { color: #A7B1D4; font-size: 14.5px; }

/* ---------- Support ---------- */
.support { background: var(--bg-soft); }
.support__grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}
.scard {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 30px;
    transition: transform .35s var(--ease), box-shadow .35s, border-color .35s;
}
.scard:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: rgba(30, 47, 151, .35); }
.scard--wide { grid-row: span 2; display: flex; flex-direction: column; justify-content: center; }
.scard__big {
    display: flex; align-items: baseline; gap: 8px;
    font-family: var(--font-display);
    margin-bottom: 14px;
}
.scard__big span {
    font-size: clamp(48px, 5vw, 68px); font-weight: 800; line-height: 1;
    background: linear-gradient(110deg, var(--navy-700), var(--navy-500));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.scard--wide .scard__big span { font-size: clamp(60px, 7vw, 92px); }
.scard__big em {
    font-style: normal; font-weight: 700;
    color: var(--orange); font-size: 18px;
}
.scard h3 { font-family: var(--font-display); font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.scard p { color: var(--ink-soft); font-size: 14.5px; }
.scard__icon {
    width: 54px; height: 54px; border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    background: var(--orange-soft);
    color: var(--orange);
    margin-bottom: 16px;
}
.scard__icon svg { width: 26px; height: 26px; }

.support__cta {
    margin-top: 46px;
    background: linear-gradient(120deg, var(--navy-800), var(--navy-600));
    border-radius: var(--radius-lg);
    padding: 36px 44px;
    display: flex; align-items: center; justify-content: space-between;
    gap: 26px; flex-wrap: wrap;
    color: #fff;
    box-shadow: var(--shadow-md);
    position: relative; overflow: hidden;
}
.support__cta::before {
    content: ""; position: absolute; width: 300px; height: 300px; border-radius: 50%;
    background: rgba(247, 148, 29, .18); filter: blur(70px);
    right: -60px; top: -120px;
}
.support__cta p { font-size: 16.5px; position: relative; }
.support__cta a:not(.btn) { color: var(--orange-light); font-weight: 700; }
.support__cta a:not(.btn):hover { text-decoration: underline; }
.support__cta .btn { position: relative; }

/* ---------- Contact ---------- */
.contact { background: var(--bg); }
.contact__inner {
    display: grid; grid-template-columns: .9fr 1.1fr;
    gap: 54px; align-items: start;
}
.contact__cards { display: flex; flex-direction: column; gap: 18px; }
.ccard {
    display: flex; gap: 18px; align-items: flex-start;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px 24px;
    transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.ccard:hover { transform: translateX(8px); box-shadow: var(--shadow-sm); border-color: rgba(247, 148, 29, .4); }
.ccard__icon {
    width: 52px; height: 52px; flex: none;
    border-radius: 15px;
    background: linear-gradient(135deg, var(--navy-700), var(--navy-500));
    display: flex; align-items: center; justify-content: center;
}
.ccard__icon svg { width: 23px; height: 23px; fill: #fff; }
.ccard h4 { font-family: var(--font-display); font-size: 16px; margin-bottom: 4px; }
.ccard p { color: var(--ink-soft); font-size: 14.5px; }
.ccard a { color: var(--navy-600); font-weight: 600; }
.ccard a:hover { color: var(--orange); }

.contact__form {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 38px 40px;
    box-shadow: var(--shadow-md);
    position: relative; overflow: hidden;
}
.contact__form::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px;
    background: linear-gradient(90deg, var(--orange), var(--navy-500));
}
.contact__form h3 { font-family: var(--font-display); font-size: 24px; font-weight: 800; }
.contact__form-sub { color: var(--ink-soft); font-size: 14.5px; margin: 6px 0 24px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact__form label { display: flex; flex-direction: column; gap: 7px; margin-bottom: 16px; }
.contact__form label span { font-size: 13.5px; font-weight: 700; color: var(--ink-soft); }
.contact__form input, .contact__form select, .contact__form textarea {
    font-family: inherit; font-size: 15px;
    color: var(--ink);
    border: 1.5px solid var(--line);
    border-radius: 12px;
    padding: 13px 16px;
    background: var(--bg-soft);
    transition: border-color .25s, box-shadow .25s, background .25s;
    width: 100%;
}
.contact__form textarea { resize: vertical; }
.contact__form input:focus, .contact__form select:focus, .contact__form textarea:focus {
    outline: none;
    border-color: var(--orange);
    background: #fff;
    box-shadow: 0 0 0 4px var(--orange-soft);
}
.contact__form .btn { margin-top: 6px; }
.form__note {
    margin-top: 14px; text-align: center;
    font-size: 13.5px; color: var(--ink-soft);
}
.form__note a { color: var(--navy-600); font-weight: 700; }
.form__note a:hover { color: var(--orange); text-decoration: underline; }

/* ---------- Footer ---------- */
.footer {
    position: relative;
    background: var(--navy-950);
    color: #9AA5CB;
    padding: 80px 0 0;
    overflow: hidden;
}
.footer__glow {
    position: absolute; width: 520px; height: 520px; border-radius: 50%;
    background: rgba(43, 57, 144, .25); filter: blur(110px);
    top: -260px; left: 50%; transform: translateX(-50%);
}
.footer__inner {
    position: relative;
    display: grid; grid-template-columns: 1.4fr .7fr .7fr 1.1fr;
    gap: 46px; padding-bottom: 54px;
}
.footer__logo { height: 40px; width: auto; margin-bottom: 18px; }
.footer__col--brand p { font-size: 14px; margin-bottom: 14px; }
.footer__hq { color: #C6CDE8; font-weight: 600; }
.footer__col h4 {
    font-family: var(--font-display);
    color: #fff; font-size: 16px; font-weight: 700;
    margin-bottom: 18px; position: relative; padding-bottom: 10px;
}
.footer__col h4::after {
    content: ""; position: absolute; left: 0; bottom: 0;
    width: 28px; height: 3px; border-radius: 3px;
    background: var(--orange);
}
.footer__col a, .footer__col span {
    display: block; font-size: 14px; margin-bottom: 11px;
    transition: color .25s, transform .25s;
}
.footer__col a:hover { color: var(--orange-light); transform: translateX(4px); }
.footer__bar {
    position: relative;
    display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding-top: 22px; padding-bottom: 22px;
    font-size: 13px;
}

/* ---------- Back to top ---------- */
.totop {
    position: fixed; right: 26px; bottom: 26px; z-index: 80;
    width: 48px; height: 48px; border-radius: 14px;
    background: linear-gradient(130deg, var(--orange), #FFA53E);
    box-shadow: 0 14px 30px rgba(247, 148, 29, .4);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transform: translateY(14px);
    transition: opacity .3s, transform .3s, visibility .3s;
}
.totop svg { width: 22px; height: 22px; fill: #fff; }
.totop.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.totop:hover { transform: translateY(-4px); }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
    .hero__inner { grid-template-columns: 1fr; gap: 70px; }
    .hero__visual { max-width: 560px; margin: 0 auto; }
    .hero__chip--1 { left: -10px; }
    .hero__chip--2 { right: -6px; }
    .products__grid { grid-template-columns: repeat(2, 1fr); }
    .features__grid { grid-template-columns: repeat(2, 1fr); }
    .support__grid { grid-template-columns: repeat(2, 1fr); }
    .scard--wide { grid-row: auto; }
    .about__inner { grid-template-columns: 1fr; gap: 90px; }
    .about__media { max-width: 560px; }
    .contact__inner { grid-template-columns: 1fr; }
    .footer__inner { grid-template-columns: 1fr 1fr; }
    .nav { gap: 0; }
    .nav__link { padding: 10px 9px; font-size: 14px; }
}

@media (max-width: 860px) {
    .section { padding: 84px 0; }
    .topbar__item--address { display: none; }
    .topbar__badge { display: none; }

    .burger { display: flex; margin-left: auto; }
    .header__cta { display: none; }
    .nav {
        position: fixed; inset: 0; z-index: 60;
        flex-direction: column; justify-content: center; gap: 10px;
        background: rgba(7, 12, 34, .97);
        backdrop-filter: blur(16px);
        opacity: 0; visibility: hidden; transform: translateY(-14px);
        transition: opacity .35s var(--ease), transform .35s var(--ease), visibility .35s;
    }
    .nav.is-open { opacity: 1; visibility: visible; transform: none; }
    .nav__link { color: #E8ECF9; font-size: 22px; font-family: var(--font-display); font-weight: 700; padding: 12px 20px; }
    .nav__link:hover, .nav__link.is-active { color: var(--orange-light); }
    .nav__link::after { display: none; }
    .nav .nav__cta { display: inline-flex; margin-top: 16px; }
    .burger.is-open span { background: #fff; }

    .hero { padding: 90px 0 110px; }
    .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 22px; }
    .hero__sun { width: 150px; height: 150px; top: 5%; right: 4%; }

    .about__facts { grid-template-columns: repeat(2, 1fr); }
    .features__grid { grid-template-columns: 1fr; }
    .form__row { grid-template-columns: 1fr; gap: 0; }
    .support__grid { grid-template-columns: 1fr; }
    .support__cta { padding: 30px 26px; }
    .footer__inner { grid-template-columns: 1fr; gap: 36px; }
    .contact__form { padding: 28px 22px; }
}

@media (max-width: 560px) {
    .products__grid { grid-template-columns: 1fr; }
    .hero__chip--1 { left: 0; }
    .hero__chip--2 { right: 0; bottom: 30%; }
    .hero__window { padding: 16px 16px 12px; }
    .about__badge { right: 8px; }
    .section__head { margin-bottom: 44px; }
    .topbar__inner { justify-content: center; }
    .footer__bar { justify-content: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
    html { scroll-behavior: auto; }
}