/* ========= БАЗА ========= */
*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --bg-main: #f3f4f6;
    --bg-alt: #e5e7eb;
    --bg-deep: #0b1220;
    --bg-card: #ffffff;
    --text-main: #111827;
    --text-soft: #4b5563;
    --accent: #f97316;   /* м’який помаранчевий, під компресорну тематику */
    --accent-soft: #fbbf24;
    --accent-green: #16a34a;
    --navy: #020617;
    --shadow-soft: 0 14px 30px rgba(15, 23, 42, 0.16);
    --shadow-card: 0 10px 24px rgba(15, 23, 42, 0.08);
    --radius-lg: 20px;
    --radius-md: 14px;
    --transition-fast: 0.16s ease-out;
    --transition-slow: 0.6s ease-out;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.5;
}

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

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

.container {
    width: min(1120px, 100% - 32px);
    margin-inline: auto;
}

/* ========= PRELOADER ========= */

#preloader {
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at top, #1e293b, #020617);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

#preloader.preloader-hide {
    opacity: 0;
    visibility: hidden;
}

.preloader-inner {
    text-align: center;
    color: #f9fafb;
}

.preloader-logo {
    position: relative;
    width: 52px;
    height: 52px;
    margin-inline: auto;
    margin-bottom: 8px;
}

.logo-gear {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    /* ...existing code... */

    border-top-color: transparent;
    animation: spin 0.9s linear infinite;
}

.logo-dot {
    position: absolute;
    inset: 12px;
    border-radius: 999px;
    background: #f9fafb;
}

.preloader-inner p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ========= HEADER ========= */

.header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: #fff;
    color: #1a1a1a;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border-bottom: 1px solid #eaeaea;
    backdrop-filter: none;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding-block: 10px;
}

.logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-main {
    font-weight: 700;
    font-size: 1rem;
}

.logo-sub {
    font-size: 0.75rem;
    color: #9ca3af;
}

.nav {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.9rem;
}

.nav a {
    padding: 6px 10px;
    border-radius: 999px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav a:hover {
    background-color: #e5e7eb;
    color: #111827;
}

.header-phone {
    font-weight: 600;
    font-size: 0.94rem;
    white-space: nowrap;
}

/* BURGER */
.burger {
    display: none;
    width: 36px;
    height: 30px;
    border: none;
    background: transparent;
    padding: 0;
    cursor: pointer;
}

.burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: #1a1a1a;
    border-radius: 999px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.burger span + span {
    margin-top: 6px;
}

.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);
}

/* ========= HERO ========= */

.hero {
    padding: 56px 0 44px;
    background: radial-gradient(circle at top left, #334155, #020617);
    color: #f9fafb;
}

.hero-inner {
    display: grid;
    gap: 26px;
    align-items: center;
}

.hero-text {
    max-width: 680px;
}

.hero-label {
    display: inline-flex;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(148, 163, 184, 0.7);
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.hero h1 {
    font-size: clamp(2rem, 3vw + 1rem, 2.7rem);
    margin: 0 0 14px;
}

.hero-desc {
    font-size: 1rem;
    color: #e5e7eb;
    margin-bottom: 18px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

/* BUTTONS */
.btn {
    font-size: 0.95rem;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: background-color var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast), transform 0.05s ease;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-soft));
    color: #111827;
    box-shadow: 0 10px 22px rgba(249, 115, 22, 0.4);
}

.btn-primary:hover {
    filter: brightness(1.05);
}

.btn-outline {
    background: transparent;
    border-color: #e5e7eb;
    color: #e5e7eb;
}

.btn-outline:hover {
    background: #e5e7eb;
    color: #111827;
}

.btn-full {
    width: 100%;
}

/* HERO LIST */

.hero-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 6px;
    font-size: 0.9rem;
    color: #e5e7eb;
}

/* HERO CARD */

.hero-card {
    background: rgba(15, 23, 42, 0.95);
    border-radius: var(--radius-lg);
    padding: 20px 20px 22px;
    box-shadow: var(--shadow-soft);
    max-width: 360px;
}

.hero-price-title {
    margin: 0 0 6px;
    font-size: 0.92rem;
    color: #e5e7eb;
}

.hero-price {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-soft);
}

.hero-price-note {
    margin: 8px 0 16px;
    font-size: 0.9rem;
    color: #cbd5f5;
}

/* ========= SECTION BASE ========= */

.section {
    padding-block: 56px;
    background-color: var(--bg-main);
}

.section-alt {
    background-color: var(--bg-alt);
}

.section-deep {
    background: radial-gradient(circle at top, #1e293b, #020617);
    color: #e5e7eb;
}

.section h2 {
    margin-top: 0;
    margin-bottom: 22px;
    font-size: 1.8rem;
}

.section-note {
    font-size: 0.9rem;
    color: var(--text-soft);
    margin-top: -10px;
    margin-bottom: 16px;
}

/* ========= GRID & CARDS ========= */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 18px 18px 20px;
    box-shadow: var(--shadow-card);
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
}

.card-soft {
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.2);
}

.card h3 {
    margin: 0 0 8px;
    font-size: 1.08rem;
}

.card p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-soft);
}

.card-icon {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    font-size: 1.2rem;
    background: rgba(34, 197, 94, 0.14);
    color: var(--accent-green);
}

.card-icon-soft {
    background: rgba(148, 163, 184, 0.15);
    color: #0f172a;
}

/* ========= PROCESS ========= */

.process-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 16px;
}

.section-deep h2 {
    color: #f9fafb;
}

.process-list li {
    background: rgba(15, 23, 42, 0.9);
    border-radius: var(--radius-lg);
    padding: 16px 18px;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.6);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: flex-start;
}

.process-list h3 {
    margin: 0 0 6px;
    font-size: 1rem;
    color: #e5e7eb;
}

.process-list p {
    margin: 0;
    font-size: 0.92rem;
    color: #cbd5f5;
}

.process-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: rgba(59, 130, 246, 0.16);
}

/* ========= CALLBACK ========= */

.section-accent {
    background: linear-gradient(135deg, #0b1120, #111827);
    color: #f9fafb;
}

.callback-inner {
    display: grid;
    gap: 24px;
    align-items: center;
}

.callback-text h2 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.7rem;
}

.callback-text p {
    margin: 0 0 10px;
}

.callback-list {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.92rem;
    color: #e5e7eb;
}

.callback-list li + li {
    margin-top: 4px;
}

.callback-form {
    background-color: rgba(15, 23, 42, 0.95);
    border-radius: var(--radius-lg);
    padding: 18px 18px 20px;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45);
}

.callback-form label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.callback-form input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid #4b5563;
    font-size: 0.95rem;
    margin-bottom: 6px;
    outline: none;
    background: #020617;
    color: #e5e7eb;
}

.callback-form input::placeholder {
    color: #6b7280;
}

.callback-form input:focus {
    border-color: var(--accent-soft);
    box-shadow: 0 0 0 1px var(--accent-soft);
}

.field-help {
    display: block;
    font-size: 0.75rem;
    color: #9ca3af;
    margin-bottom: 12px;
}

.callback-success {
    margin-top: 10px;
    font-size: 0.8rem;
    color: #bbf7d0;
    min-height: 1em;
}

/* ========= SLIDERS ========= */

.slider {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: #ffffff;
    box-shadow: var(--shadow-card);
    padding: 16px 0 20px;
}

.slider-track {
    display: flex;
    transition: transform 0.4s ease-out;
}

.slide {
    min-width: 100%;
    padding-inline: 16px;
}

.slide img {
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    object-fit: cover;
    max-height: 240px;
    width: 100%;
    background: #e5e7eb;
}

.slide p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-soft);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: rgba(15, 23, 42, 0.88);
    color: #f9fafb;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    padding: 0;
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.35);
    transition: background-color 0.15s ease, transform 0.1s ease;
}

.slider-btn:hover {
    background: #111827;
}

.slider-btn:active {
    transform: translateY(-50%) scale(0.96);
}

.slider-btn-prev {
    left: 8px;
}

.slider-btn-next {
    right: 8px;
}

/* ========= PRICES ========= */

.prices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.price-item {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 16px 18px;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

.price-item h3 {
    margin: 0 0 4px;
    font-size: 1rem;
}

.price {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
}

/* ========= CONTACTS ========= */

.contacts-grid {
    display: grid;
    gap: 20px;
}

.contacts-extra {
    font-size: 0.95rem;
    color: var(--text-soft);
}

/* ========= FLOATING CALL BUTTON ========= */

.call-bubble {
    position: fixed;
    right: 16px;
    bottom: 18px;
    width: 52px;
    height: 52px;
    border-radius: 999px;
    background: #4c1d95;
    color: #f9fafb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 16px 40px rgba(76, 29, 149, 0.5);
    z-index: 15;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.call-bubble:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 50px rgba(76, 29, 149, 0.7);
}

/* ========= FOOTER ========= */

.footer {
    background-color: var(--navy);
    color: #9ca3af;
    padding-block: 16px;
    font-size: 0.85rem;
}

.footer-inner {
    display: flex;
    justify-content: center;
    text-align: center;
}

/* ========= ANIMATIONS / SCROLL APPEAR ========= */

.fade-in-section {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========= RESPONSIVE ========= */

@media (min-width: 900px) {
    .hero-inner {
        grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.1fr);
    }
}

@media (max-width: 900px) {
    .header-inner {
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .burger {
        display: block;
    }

    .nav {
        position: fixed;
        inset-inline: 0;
        top: 52px;
        background: #181f2e;
        color: #fff;
        padding: 12px 16px 16px;
        flex-direction: column;
        gap: 10px;
        transform: translateY(-120%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.18s ease-out, opacity 0.18s ease-out;
        z-index: 100;
    }

    .nav.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav a {
        color: #fff;
    }
    .nav a:hover {
        background: #fff;
        color: #181f2e;
    }
/* --- HEADER HIDE/SHOW ANIMATION --- */
.header {
    transition: transform 0.35s cubic-bezier(.4,0,.2,1), box-shadow 0.2s;
}
.header.hide {
    transform: translateY(-120%);
    box-shadow: none;
}
.header.show {
    transform: translateY(0);
}

    .hero {
        padding-top: 44px;
    }

    .hero-text {
        text-align: left;
    }

    .hero-actions {
        justify-content: flex-start;
    }

    .call-bubble {
        right: 12px;
        bottom: 14px;
    }
}

@media (max-width: 640px) {
    .header-inner {
        gap: 10px;
    }

    .logo-main {
        font-size: 0.95rem;
    }

    .logo-sub {
        display: none;
    }

    .hero-card {
        max-width: 100%;
    }

    .section h2 {
        font-size: 1.6rem;
    }

    .process-list li {
        grid-template-columns: 1fr;
    }

    .slider-btn {
        display: none; /* на дуже малих екранах можна просто свайп/горизонтальний скрол */
    }
}

/* Лого в шапці */
.header .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    filter: none !important;
    color: #1a1a1a !important;
}

.logo-img {
    width: 44px;          /* розмір іконки */
    height: 44px;
    object-fit: contain;
    flex-shrink: 0;
    filter: none;
    background: transparent;
}

/* щоб текст стояв рівно */
.logo-text {
    display: flex;
    flex-direction: column;
}

/* на мобілці можна трохи зменшити */
@media (max-width: 768px) {
    .logo-img {
        width: 36px;
        height: 36px;
    }
}