/* ═══════════════════════════════════════════
   На завод — Landing page styles
   Aesthetic: industrial forest / dark navy + concrete + moss
   ═══════════════════════════════════════════ */

:root {
    /* ── palette ── */
    --navy:        #0b1423;
    --navy-mid:    #111d30;
    --navy-light:  #182840;
    --concrete:    #2a3040;
    --concrete-lt: #3d4556;
    --slate:       #8a93a6;
    --fog:         #b8c0d0;
    --cloud:       #dce1ea;
    --white:       #eef1f6;
    --moss:        #4d7a5a;
    --moss-light:  #5e9b6e;
    --moss-glow:   #6bb87e;
    --bark:        #8b7355;
    --bark-light:  #a6896a;

    /* ── type ── */
    --ff-display:  'Fira Code', 'Courier New', monospace;
    --ff-body:     'Nunito Sans', 'Segoe UI', sans-serif;

    /* ── spacing ── */
    --section-py:  clamp(64px, 10vw, 120px);
    --container:   1080px;
    --radius:      12px;
    --radius-sm:   8px;
}

/* ── reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--ff-body);
    background: var(--navy);
    color: var(--fog);
    line-height: 1.65;
    font-size: 16px;
    overflow-x: hidden;
}

a { color: var(--moss-light); text-decoration: none; transition: color .2s; }
a:hover { color: var(--moss-glow); }

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

/* ═══ NAV ═══ */
.nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(11, 20, 35, .82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(77, 122, 90, .12);
    transition: background .3s;
}
.nav--scrolled { background: rgba(11, 20, 35, .96); }
.nav__inner {
    display: flex; align-items: center; justify-content: space-between;
}
.nav__logo {
    font-family: var(--ff-display);
    font-size: 20px; font-weight: 700;
    color: var(--white);
    letter-spacing: -.02em;
}
.nav__dot { color: var(--moss-light); }
.nav__cta {
    font-family: var(--ff-display);
    font-size: 13px; font-weight: 600;
    color: var(--moss-light);
    border: 1px solid rgba(77, 122, 90, .4);
    padding: 8px 20px;
    border-radius: 6px;
    transition: all .25s;
}
.nav__cta:hover {
    background: rgba(77, 122, 90, .15);
    border-color: var(--moss-light);
    color: var(--moss-glow);
}

/* ═══ BUTTONS ═══ */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    font-family: var(--ff-display);
    font-size: 14px; font-weight: 600;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all .25s;
    text-decoration: none;
    letter-spacing: .01em;
}
.btn--primary {
    background: var(--moss);
    color: var(--white);
    border-color: var(--moss);
}
.btn--primary:hover {
    background: var(--moss-light);
    border-color: var(--moss-light);
    color: #fff;
    box-shadow: 0 4px 24px rgba(77, 122, 90, .25);
}
.btn--ghost {
    background: transparent;
    color: var(--fog);
    border-color: var(--concrete-lt);
}
.btn--ghost:hover {
    border-color: var(--fog);
    color: var(--white);
}
.btn--outline {
    background: transparent;
    color: var(--moss-light);
    border-color: var(--moss);
}
.btn--outline:hover {
    background: rgba(77, 122, 90, .12);
    border-color: var(--moss-light);
}
.btn--wide { width: 100%; max-width: 360px; }

/* ═══ HERO ═══ */
.hero {
    position: relative;
    padding: calc(100px + var(--section-py)) 0 var(--section-py);
    overflow: hidden;
    background:
        radial-gradient(ellipse 70% 50% at 60% 40%, rgba(77, 122, 90, .06) 0%, transparent 70%),
        radial-gradient(ellipse 50% 60% at 20% 80%, rgba(139, 115, 85, .04) 0%, transparent 60%),
        var(--navy);
}
.hero__noise {
    position: absolute; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
    background-size: 200px;
    pointer-events: none;
    opacity: .5;
}
.hero__fade {
    position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
    background: linear-gradient(to bottom, transparent, var(--navy));
    pointer-events: none;
}
.hero__inner { position: relative; z-index: 1; }
.hero__tag {
    font-family: var(--ff-display);
    font-size: 12px; font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--moss-light);
    margin-bottom: 24px;
    opacity: 0; animation: fadeUp .7s .1s forwards;
}
.hero__title {
    font-family: var(--ff-display);
    font-size: clamp(40px, 8vw, 72px);
    font-weight: 700;
    line-height: 1.1;
    color: var(--white);
    letter-spacing: -.03em;
    margin-bottom: 24px;
    opacity: 0; animation: fadeUp .7s .25s forwards;
}
.hero__dot { color: var(--moss-light); }
.hero__sub {
    font-size: clamp(16px, 2.2vw, 20px);
    max-width: 520px;
    color: var(--slate);
    margin-bottom: 40px;
    opacity: 0; animation: fadeUp .7s .4s forwards;
}
.hero__actions {
    display: flex; gap: 16px; flex-wrap: wrap;
    margin-bottom: 56px;
    opacity: 0; animation: fadeUp .7s .55s forwards;
}
.hero__stats {
    display: flex; align-items: center; gap: 32px;
    opacity: 0; animation: fadeUp .7s .7s forwards;
}
.hero__stat-value {
    display: block;
    font-family: var(--ff-display);
    font-size: 22px; font-weight: 700;
    color: var(--white);
}
.hero__stat-label {
    font-size: 13px;
    color: var(--slate);
}
.hero__stat-sep {
    width: 1px; height: 36px;
    background: var(--concrete-lt);
}

/* ═══ SECTIONS ═══ */
.section {
    padding: var(--section-py) 0;
}
.section--alt {
    background:
        linear-gradient(180deg, var(--navy-mid) 0%, var(--navy) 100%);
}
.section__title {
    font-family: var(--ff-display);
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 48px;
    letter-spacing: -.02em;
}
.section__title::after {
    content: '.';
    color: var(--moss-light);
}

/* ═══ WHAT ═══ */
.what__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.what__text p {
    margin-bottom: 16px;
    font-size: 17px;
}
.what__card {
    background: var(--navy-light);
    border: 1px solid rgba(77, 122, 90, .15);
    border-radius: var(--radius);
    padding: 32px;
}
.what__card-icon { font-size: 28px; margin-bottom: 16px; }
.what__card-text { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.what__card-label { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--slate); }
.what__card-value { font-family: var(--ff-display); font-size: 18px; font-weight: 700; color: var(--moss-glow); }
.what__card-sub { font-size: 14px; color: var(--slate); }

/* ═══ STEPS ═══ */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.step {
    background: var(--navy);
    border: 1px solid var(--concrete);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: border-color .3s, transform .3s;
}
.step:hover {
    border-color: var(--moss);
    transform: translateY(-4px);
}
.step__num {
    font-family: var(--ff-display);
    font-size: 32px; font-weight: 700;
    color: rgba(77, 122, 90, .3);
    margin-bottom: 16px;
}
.step__title {
    font-family: var(--ff-display);
    font-size: 15px; font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}
.step__desc { font-size: 14px; color: var(--slate); }

/* ═══ TARIFF ═══ */
.tariff {
    max-width: 480px;
    margin: 0 auto;
    background: var(--navy-light);
    border: 1px solid var(--moss);
    border-radius: var(--radius);
    padding: 48px 40px;
    text-align: center;
    position: relative;
    box-shadow: 0 8px 48px rgba(77, 122, 90, .08);
}
.tariff__badge {
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    font-family: var(--ff-display);
    font-size: 11px; font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .1em;
    background: var(--moss);
    color: var(--white);
    padding: 6px 20px;
    border-radius: 20px;
}
.tariff__price { margin: 24px 0 32px; }
.tariff__amount {
    font-family: var(--ff-display);
    font-size: 64px; font-weight: 700;
    color: var(--white);
    line-height: 1;
}
.tariff__currency {
    font-family: var(--ff-display);
    font-size: 20px; font-weight: 600;
    color: var(--slate);
    margin-left: 4px;
}
.tariff__features {
    list-style: none;
    text-align: left;
    margin-bottom: 36px;
}
.tariff__features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
    font-size: 15px;
    color: var(--fog);
}
.tariff__features li::before {
    content: '✓ ';
    color: var(--moss-glow);
    font-weight: 700;
}

/* ═══ CARDS ═══ */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}
.card {
    background: var(--navy);
    border: 1px solid var(--concrete);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: border-color .3s, transform .3s;
}
.card:hover {
    border-color: rgba(77, 122, 90, .4);
    transform: translateY(-3px);
}
.card__icon { font-size: 28px; margin-bottom: 14px; }
.card__title {
    font-family: var(--ff-display);
    font-size: 14px; font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}
.card__desc { font-size: 14px; color: var(--slate); }

/* ═══ NO TELEGRAM ═══ */
.notg {
    background: var(--navy-light);
    border: 1px solid var(--concrete);
    border-radius: var(--radius);
    padding: 40px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
}
.notg__text p { margin-bottom: 20px; font-size: 17px; }
.notg__steps { display: flex; flex-direction: column; gap: 12px; }
.notg__step {
    display: flex; align-items: center; gap: 14px;
    font-size: 15px;
}
.notg__step-num {
    flex-shrink: 0;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--ff-display);
    font-size: 12px; font-weight: 700;
    border-radius: 50%;
    background: rgba(77, 122, 90, .15);
    color: var(--moss-glow);
    border: 1px solid rgba(77, 122, 90, .3);
}
.notg__action { text-align: center; }
.notg__note {
    font-size: 12px;
    color: var(--slate);
    margin-top: 12px;
}

/* ═══ FAQ ═══ */
.faq { max-width: 720px; }
.faq__item {
    border-bottom: 1px solid var(--concrete);
}
.faq__q {
    font-family: var(--ff-display);
    font-size: 15px; font-weight: 600;
    color: var(--white);
    padding: 20px 0;
    cursor: pointer;
    list-style: none;
    display: flex; justify-content: space-between; align-items: center;
    transition: color .2s;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
    content: '+';
    font-size: 20px;
    color: var(--moss-light);
    transition: transform .3s;
    flex-shrink: 0;
    margin-left: 16px;
}
details[open] .faq__q::after {
    transform: rotate(45deg);
}
.faq__q:hover { color: var(--moss-light); }
.faq__a {
    padding: 0 0 20px;
    font-size: 15px;
    color: var(--slate);
    line-height: 1.7;
}

/* ═══ FOOTER ═══ */
.footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--concrete);
}
.footer__inner {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 32px;
    align-items: start;
}
.footer__logo {
    font-family: var(--ff-display);
    font-size: 18px; font-weight: 700;
    color: var(--white);
}
.footer__tagline { font-size: 13px; color: var(--slate); margin-top: 4px; }
.footer__links,
.footer__legal { display: flex; flex-direction: column; gap: 8px; }
.footer__links a,
.footer__legal a {
    font-size: 14px; color: var(--slate); transition: color .2s;
}
.footer__links a:hover,
.footer__legal a:hover { color: var(--moss-light); }
.footer__copy {
    grid-column: 1 / -1;
    font-size: 12px;
    color: var(--concrete-lt);
    margin-top: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--concrete);
}

/* ═══ ANIMATIONS ═══ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s, transform .6s;
}
.reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
    .what__grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .notg { grid-template-columns: 1fr; text-align: center; }
    .notg__action { margin-top: 8px; }
    .footer__inner { grid-template-columns: 1fr; gap: 24px; }
    .footer__links,
    .footer__legal { flex-direction: row; flex-wrap: wrap; gap: 12px 20px; }
    .hero__stats { gap: 20px; flex-wrap: wrap; }
    .tariff { padding: 40px 28px; }
}

@media (max-width: 520px) {
    .steps { grid-template-columns: 1fr; }
    .hero__actions { flex-direction: column; }
    .hero__actions .btn { width: 100%; }
    .cards { grid-template-columns: 1fr; }
}