/* =========================================================
   PAGES.CSS — Стили, специфичные для страниц
   ========================================================= */

/* ---------------------------------------------------------
   Главная — Hero
   --------------------------------------------------------- */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--clr-bg);
    overflow: hidden;
}

/* CSS-фон-заглушка (заменить на реальное фото/видео) */
.hero__bg {
    position: absolute;
    inset: 0;
    background-image:
    /* Добавить: url('../images/hero.webp') */ var(
        --hero-bg-overlay
    );
    background-size: cover;
    background-position: center 30%;
    z-index: 0;
}

/* Precision grid — инженерный чертёж */
.hero__bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--hero-grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--hero-grid-color) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: radial-gradient(
        ellipse 90% 90% at 50% 50%,
        black 30%,
        transparent 80%
    );
    -webkit-mask-image: radial-gradient(
        ellipse 90% 90% at 50% 50%,
        black 30%,
        transparent 80%
    );
}

/* Soft blue accent glow */
.hero__bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--hero-glow);
}

.hero__inner {
    position: relative;
    z-index: 1;
    padding-block: calc(var(--hdr-h) + 4rem) 5rem;
}

/* Staggered entrance animations */
.hero__label {
    animation: heroEnter 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}
.hero__title {
    animation: heroEnter 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.32s both;
}
.hero__sub {
    animation: heroEnter 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.52s both;
}
.hero__actions {
    animation: heroEnter 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.68s both;
}
.hero__phone-block {
    animation: heroEnter 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.82s both;
}

@keyframes heroEnter {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.hero__label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.68rem;
    font-family: var(--font-head);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
}

.hero__label::before {
    content: "";
    display: inline-block;
    width: 28px;
    height: 2px;
    background: var(--clr-accent);
    flex-shrink: 0;
    box-shadow: 0 0 8px rgba(28, 107, 186, 0.6);
}

.hero__title {
    font-size: clamp(1.75rem, 6.5vw, 5.5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.01em;
    color: var(--clr-text);
    max-width: 860px;
    margin-bottom: 1.25rem;
}

.hero__title span {
    color: var(--clr-accent);
    text-shadow: 0 0 60px rgba(28, 107, 186, 0.35);
}

.hero__sub {
    font-size: clamp(0.9rem, 1.8vw, 1.1rem);
    color: var(--clr-muted);
    max-width: 540px;
    line-height: 1.65;
    margin-bottom: var(--sp-lg);
}

.hero__actions {
    display: flex;
    align-items: center;
    gap: var(--sp-sm);
    flex-wrap: wrap;
    margin-bottom: var(--sp-lg);
}

.hero__phone-block {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.hero__phone-label {
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--clr-muted);
}

.hero__phone {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--clr-text);
    letter-spacing: 0.03em;
    transition: color var(--tr);
}

.hero__phone:hover {
    color: var(--clr-accent);
}

/* Scroll indicator */
.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--clr-muted);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-family: var(--font-head);
    animation:
        heroEnter 1s ease 1.1s both,
        scrollPulse 2.5s ease-in-out 2s infinite;
}

.hero__scroll-line {
    width: 1px;
    height: 44px;
    background: linear-gradient(to bottom, var(--clr-accent), transparent);
    box-shadow: 0 0 6px rgba(28, 107, 186, 0.4);
}

@keyframes scrollPulse {
    0%,
    100% {
        transform: translateX(-50%) translateY(0);
        opacity: 0.5;
    }
    50% {
        transform: translateX(-50%) translateY(8px);
        opacity: 1;
    }
}

@media (max-width: 767px) {
    .hero__actions {
        flex-direction: column;
        align-items: flex-start;
    }
    .hero__scroll {
        display: none;
    }
}

/* ---------------------------------------------------------
   Главная — Advantages
   --------------------------------------------------------- */

.advantages {
    background: var(--clr-bg);
}

/* ---------------------------------------------------------
   Главная — Services preview
   --------------------------------------------------------- */

.services-preview {
    background: var(--clr-bg-card);
}

.service-preview-card {
    padding: var(--sp-md) var(--sp-md) var(--sp-lg);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    background: var(--clr-bg);
}

/* ---------------------------------------------------------
   Главная — Promotions banner
   --------------------------------------------------------- */

.promos-section {
    background: var(--clr-bg-card);
}

/* ---------------------------------------------------------
   СТО — Services
   --------------------------------------------------------- */

.sto-services {
    background: var(--clr-bg);
}

.sto-services-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-lg);
}

@media (max-width: 899px) {
    .sto-services-cols {
        grid-template-columns: 1fr;
    }
}

.sto-services-col__title {
    font-size: 0.7rem;
    font-family: var(--font-head);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--clr-accent);
    margin-bottom: var(--sp-sm);
}

/* ---------------------------------------------------------
   Тюнинг — Types
   --------------------------------------------------------- */

.tuning-types {
    background: var(--clr-bg-card);
}

.tuning-card {
    padding: var(--sp-md);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.tuning-card__tag {
    font-size: 0.7rem;
    font-family: var(--font-head);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--clr-accent);
}

.tuning-card__for {
    font-size: 0.78rem;
    color: var(--clr-muted);
    margin-top: auto;
    padding-top: 0.5rem;
    border-top: 1px solid var(--clr-border);
}

.tuning-card__for span {
    color: var(--clr-text);
}

/* Chip-tuning description */
.tuning-about {
    background: var(--clr-bg);
}

.tuning-about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-xl);
    align-items: start;
}

.tuning-about__text p + p {
    margin-top: 0.9em;
}

.tuning-about__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-sm);
}

.tuning-stat {
    padding: var(--sp-md);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--r-lg);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.tuning-stat__val {
    font-family: var(--font-head);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--clr-accent);
    line-height: 1;
    letter-spacing: -0.02em;
    text-shadow:
        0 0 20px rgba(28, 107, 186, 0.5),
        0 0 50px rgba(28, 107, 186, 0.15);
}

.tuning-stat__label {
    font-size: 0.8rem;
    color: var(--clr-muted);
}

@media (max-width: 899px) {
    .tuning-about__content {
        grid-template-columns: 1fr;
    }
}

/* ---------------------------------------------------------
   Развал-схождение
   --------------------------------------------------------- */

.alignment-about {
    background: var(--clr-bg);
}

.alignment-about__content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--sp-xl);
    align-items: start;
}

@media (max-width: 899px) {
    .alignment-about__content {
        grid-template-columns: 1fr;
    }
}

.when-check {
    background: var(--clr-bg-card-alt);
    border: 1px solid var(--clr-border);
    border-radius: var(--r-lg);
    padding: var(--sp-md);
}

.when-check__title {
    font-size: 0.7rem;
    font-family: var(--font-head);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--clr-accent);
    margin-bottom: var(--sp-sm);
}

.when-check__list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.when-check__item {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.875rem;
    color: var(--clr-muted);
    line-height: 1.5;
}

.when-check__dot {
    width: 8px;
    height: 8px;
    background: var(--clr-accent);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.4rem;
}

/* Steps section */
.steps-section {
    background: var(--clr-bg-card);
}

/* ---------------------------------------------------------
   Наши друзья
   --------------------------------------------------------- */

.partners-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-md);
}

@media (max-width: 767px) {
    .partners-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------------------------------------------------------
   Акции — empty state
   --------------------------------------------------------- */

.stocks-empty {
    text-align: center;
    padding: var(--sp-2xl) var(--sp-md);
    color: var(--clr-muted);
}

.stocks-empty__icon {
    width: 64px;
    height: 64px;
    color: var(--clr-border);
    margin: 0 auto var(--sp-md);
}

/* ---------------------------------------------------------
   Страница акции
   --------------------------------------------------------- */

.promo-page__hero {
    background: var(--clr-bg-card);
    border-bottom: 1px solid var(--clr-border);
}

.promo-page__img {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--r-lg);
    margin-bottom: var(--sp-lg);
}

.promo-page__content {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: var(--sp-xl);
    align-items: start;
}

@media (max-width: 1023px) {
    .promo-page__content {
        grid-template-columns: 1fr;
    }
}

.promo-page__sidebar {
    position: sticky;
    top: calc(var(--hdr-h) + 1.5rem);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--r-lg);
    padding: var(--sp-md);
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
}

.promo-sidebar__label {
    font-size: 0.7rem;
    font-family: var(--font-head);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--clr-muted);
}

.promo-sidebar__deadline {
    font-family: var(--font-head);
    font-size: 1rem;
    color: var(--clr-text);
    letter-spacing: 0.04em;
}

.promo-sidebar__divider {
    border: none;
    border-top: 1px solid var(--clr-border);
}

/* ---------------------------------------------------------
   Контакты
   --------------------------------------------------------- */

.contacts-section {
    background: var(--clr-bg);
}

/* ---------------------------------------------------------
   Breadcrumb
   --------------------------------------------------------- */

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--clr-muted);
    margin-bottom: 0.75rem;
}

.breadcrumb__item {
    color: var(--clr-muted);
    transition: color var(--tr);
}
.breadcrumb__item:hover {
    color: var(--clr-text);
}
.breadcrumb__sep {
    color: var(--clr-border);
}
.breadcrumb__item--current {
    color: var(--clr-text);
    cursor: default;
}

/* ---------------------------------------------------------
   Mobile — 768px
   --------------------------------------------------------- */

@media (max-width: 767px) {
    /* Hero */
    .hero {
        min-height: 100svh;
    }
    .hero__inner {
        padding-block: calc(var(--hdr-h) + 2.5rem) 4rem;
    }
    .hero__title {
        margin-bottom: 1rem;
        line-height: 1.1;
        word-break: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
    .hero__sub {
        font-size: 0.9rem;
        margin-bottom: var(--sp-md);
        max-width: 100%;
    }
    .hero__actions {
        gap: 0.6rem;
        margin-bottom: var(--sp-md);
    }
    .hero__actions .btn-lg {
        width: 100%;
        justify-content: center;
    }
    .hero__scroll {
        display: none;
    }

    /* Page hero (inner pages) */
    .page-hero {
        padding-block: clamp(2rem, 6vw, 3.5rem);
    }
    .page-hero__lead {
        font-size: 0.95rem;
    }

    /* Tuning stats */
    .tuning-stats {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1rem;
    }
    .tuning-stat__value {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    /* Steps (razval) */
    .steps-grid {
        grid-template-columns: 1fr !important;
    }
    .step-card {
        flex-direction: row;
        gap: 1rem;
        align-items: flex-start;
        text-align: left;
    }
    .step-card__num {
        font-size: 2.2rem;
        min-width: 2.8rem;
        line-height: 1;
        flex-shrink: 0;
    }

    /* Accordion */
    .accordion-item {
    }
    .accordion-btn {
        font-size: 0.9rem;
        padding: 0.9rem 1rem;
        gap: 0.75rem;
    }
    .accordion-body {
        padding: 0 1rem 1rem;
    }

    /* Partner cards */
    .partner-card {
        flex-direction: column;
        gap: 0.75rem;
    }
    .partner-logo {
        flex-shrink: 0;
    }

    /* Promo single page — sidebar */
    .promo-layout {
        grid-template-columns: 1fr !important;
    }
    .promo-sidebar {
        position: static !important;
    }

    /* Contacts map */
    .map-wrapper iframe {
        height: 280px;
    }

    /* Contact info grid */
    .contacts-grid {
        grid-template-columns: 1fr !important;
    }
}

/* ---------------------------------------------------------
   Mobile — 480px (small phones)
   --------------------------------------------------------- */

@media (max-width: 479px) {
    /* Hero: very small screens */
    .hero__label {
        font-size: 0.6rem;
        letter-spacing: 0.14em;
    }
    .hero__phone {
        font-size: 1rem;
    }

    /* Tuning stats: single column on tiny screens */
    .tuning-stats {
        grid-template-columns: 1fr !important;
    }

    /* Promo card image */
    .promo-card__img {
        aspect-ratio: unset;
    }
    .promo-card__img > div {
        height: 140px !important;
    }

    /* Step card compact */
    .step-card__num {
        font-size: 1.8rem;
        min-width: 2.2rem;
    }
    .step-card__title {
        font-size: 0.95rem;
    }

    /* Page hero tight */
    .page-hero__title {
        font-size: clamp(1.6rem, 7vw, 2rem);
    }

    /* Accordion even tighter */
    .accordion-btn {
        font-size: 0.85rem;
        padding: 0.8rem;
    }
}