/* ==========================================================================
   SerpMoto Auction — базовая дизайн-система
   Токены, сброс, типографика, кнопки, формы, бейджи, утилиты.
   Палитра и структура наследуют motopodbor.com, визуал обновлён.
   ========================================================================== */

/* ---------- Токены ---------- */
:root {
    /* Бренд */
    --brand-700: #8f2400;
    --brand-600: #b93000;
    --brand-500: #d8420a;
    --brand-400: #ef6a2c;
    --brand-soft: #fff1ea;

    /* Акценты */
    --blue-600: #0a6f9e;
    --blue-500: #0a88b9;
    --blue-soft: #eaf6fc;

    --green-600: #16883f;
    --green-500: #1fa34c;
    --green-soft: #eaf7ef;

    --amber-500: #e0a106;
    --amber-soft: #fdf5e2;

    --grey-700: #4b5a66;
    --grey-500: #6b7a85;
    --grey-400: #97a3ad;
    --grey-300: #c8d1d8;
    --grey-200: #e4e8ec;
    --grey-100: #f1f4f6;
    --grey-50: #f7f9fa;

    /* Поверхности */
    --ink-900: #08131c;
    --ink-800: #0d1d29;
    --ink-700: #162a38;
    --ink-600: #1f394a;

    --surface: #ffffff;
    --surface-alt: var(--grey-50);
    --page-bg: #f4f6f8;
    --line: var(--grey-200);
    --text: #0d1d29;
    --text-muted: var(--grey-500);

    /* Геометрия */
    --container-max: 1320px;
    --header-height: 72px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 18px;
    --radius-pill: 999px;

    /* Тени */
    --shadow-xs: 0 1px 2px rgba(13, 29, 41, 0.06);
    --shadow-sm: 0 2px 8px rgba(13, 29, 41, 0.07);
    --shadow: 0 8px 24px rgba(13, 29, 41, 0.09);
    --shadow-lg: 0 18px 44px rgba(13, 29, 41, 0.16);

    /* Прочее */
    --ring: 0 0 0 3px rgba(10, 136, 185, 0.28);
    --transition: 0.2s cubic-bezier(0.2, 0.7, 0.3, 1);
    --font: 'Montserrat', 'Segoe UI', system-ui, -apple-system, Helvetica, Arial, sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    min-width: 320px;
    margin: 0;
    font-family: var(--font);
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--text);
    background-color: var(--page-bg);
    -webkit-font-smoothing: antialiased;
}

body.no-scroll {
    overflow: hidden;
}

main {
    display: block;
    min-height: 60vh;
}

img,
svg,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

ul,
ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

figure,
blockquote,
dl,
dd {
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
    margin: 0;
}

button {
    font: inherit;
    color: inherit;
}

table {
    border-collapse: collapse;
    width: 100%;
}

input[type='number']::-webkit-outer-spin-button,
input[type='number']::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type='number'] {
    -moz-appearance: textfield;
}

:focus-visible {
    outline: none;
    box-shadow: var(--ring);
}

::selection {
    background-color: var(--brand-soft);
    color: var(--brand-700);
}

/* Скроллбар */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--grey-300) transparent;
}

*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

*::-webkit-scrollbar-thumb {
    background-color: var(--grey-300);
    border: 3px solid transparent;
    background-clip: content-box;
    border-radius: 999px;
}

/* ---------- Сетка ---------- */
.container {
    position: relative;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 16px;
}

.page {
    padding: 24px 0 48px;
}

/* ---------- Типографика ---------- */
.heading1,
.heading2,
.heading3,
.heading4 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--ink-900);
}

.heading1 {
    font-size: clamp(1.75rem, 1.2rem + 2vw, 2.5rem);
}

.heading2 {
    font-size: clamp(1.375rem, 1.1rem + 1.1vw, 1.875rem);
}

.heading3 {
    font-size: clamp(1.125rem, 1rem + 0.4vw, 1.375rem);
}

.heading4 {
    font-size: 1.0625rem;
}

.heading5 {
    font-size: 0.9375rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--grey-700);
}

.lead {
    font-size: 1.0625rem;
    color: var(--grey-700);
}

.text-muted {
    color: var(--text-muted);
}

.text-brand {
    color: var(--brand-600);
}

.text-center {
    text-align: center;
}

strong,
.bold-text {
    font-weight: 600;
}

/* Заголовок секции с подписью */
.section-head {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.section-head__text {
    max-width: 900px;
    color: var(--grey-700);
}

.section-head--row {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

/* Декоративная черта под заголовком */
.accent-line {
    width: 56px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--brand-600), var(--brand-400));
}

/* ---------- Кнопки ---------- */
.button {
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer;
    font-size: inherit;
    line-height: 1;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 22px;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.1;
    text-align: center;
    white-space: nowrap;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: transform var(--transition), background-color var(--transition),
        border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.btn:active {
    transform: translateY(1px);
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn--primary {
    color: #fff;
    background-image: linear-gradient(135deg, var(--brand-500), var(--brand-600));
    box-shadow: 0 6px 18px rgba(185, 48, 0, 0.28);
}

.btn--primary:hover {
    box-shadow: 0 10px 24px rgba(185, 48, 0, 0.34);
    filter: brightness(1.05);
}

.btn--secondary {
    color: var(--ink-800);
    background-color: #fff;
    border-color: var(--line);
    box-shadow: var(--shadow-xs);
}

.btn--secondary:hover {
    border-color: var(--blue-500);
    color: var(--blue-600);
}

.btn--ghost {
    color: var(--grey-700);
    background-color: var(--grey-100);
}

.btn--ghost:hover {
    background-color: var(--grey-200);
    color: var(--ink-800);
}

.btn--blue {
    color: #fff;
    background-color: var(--blue-500);
}

.btn--blue:hover {
    background-color: var(--blue-600);
}

.btn--outline-brand {
    color: var(--brand-600);
    border-color: rgba(185, 48, 0, 0.4);
    background-color: #fff;
}

.btn--outline-brand:hover {
    background-color: var(--brand-soft);
}

.btn--sm {
    padding: 9px 16px;
    font-size: 0.875rem;
}

.btn--lg {
    padding: 15px 30px;
    font-size: 1rem;
}

.btn--block {
    width: 100%;
}

/* Ссылка-стрелка */
.link-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--blue-600);
}

.link-more::after {
    content: '→';
    transition: transform var(--transition);
}

.link-more:hover::after {
    transform: translateX(4px);
}

/* ---------- Формы ---------- */
.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--grey-500);
}

.form-control,
.select {
    width: 100%;
    padding: 11px 13px;
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--text);
    background-color: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    appearance: none;
}

.select {
    padding-right: 38px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%236b7a85' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 13px center;
    cursor: pointer;
}

.form-control:hover,
.select:hover {
    border-color: var(--grey-300);
}

.form-control:focus,
.select:focus {
    border-color: var(--blue-500);
    box-shadow: var(--ring);
}

.form-control::placeholder {
    color: var(--grey-400);
}

.form-control:disabled,
.select:disabled {
    background-color: var(--grey-50);
    color: var(--grey-400);
    cursor: not-allowed;
}

.form-hint {
    margin-top: 6px;
    font-size: 0.8125rem;
    color: var(--grey-500);
}

/* Чекбокс */
.checkbox {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--ink-800);
    cursor: pointer;
    user-select: none;
}

.checkbox input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox__box {
    position: relative;
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    background-color: #fff;
    border: 1.5px solid var(--grey-300);
    border-radius: 6px;
    transition: border-color var(--transition), background-color var(--transition);
}

.checkbox__box::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 6.5px;
    width: 5px;
    height: 10px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--transition);
}

.checkbox:hover .checkbox__box {
    border-color: var(--blue-500);
}

.checkbox input:checked + .checkbox__box {
    background-image: linear-gradient(135deg, var(--brand-500), var(--brand-600));
    border-color: var(--brand-600);
}

.checkbox input:checked + .checkbox__box::after {
    transform: rotate(45deg) scale(1);
}

.checkbox input:focus-visible + .checkbox__box {
    box-shadow: var(--ring);
}

/* ---------- Бейджи ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.2;
    color: #fff;
    background-color: var(--grey-500);
    border-radius: var(--radius-pill);
    white-space: nowrap;
}

.badge--sold {
    background-color: var(--green-500);
}

.badge--unsold {
    background-color: var(--grey-500);
}

.badge--canceled {
    background-color: var(--brand-600);
}

.badge--checked {
    color: var(--ink-900);
    background-color: var(--amber-500);
}

.badge--not-checked {
    color: var(--ink-800);
    background-color: var(--grey-200);
}

.badge--soft {
    align-self: flex-start;
    width: fit-content;
    flex: 0 0 auto;
    color: var(--blue-600);
    background-color: var(--blue-soft);
}

/* ---------- Плашки-уведомления ---------- */
.notice {
    display: flex;
    gap: 12px;
    padding: 14px 16px;
    font-size: 0.875rem;
    color: var(--ink-800);
    background-color: var(--blue-soft);
    border: 1px solid rgba(10, 136, 185, 0.2);
    border-radius: var(--radius);
}

.notice--error {
    background-color: var(--brand-soft);
    border-color: rgba(185, 48, 0, 0.22);
}

.notice--success {
    background-color: var(--green-soft);
    border-color: rgba(31, 163, 76, 0.22);
}

.notice--warn {
    background-color: var(--amber-soft);
    border-color: rgba(224, 161, 6, 0.28);
}

/* ---------- Карточка-панель ---------- */
.panel {
    padding: 20px;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
}

.panel--flush {
    padding: 0;
    overflow: hidden;
}

/* ---------- Загрузка ---------- */
.overlay {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(2px);
    border-radius: var(--radius-lg);
    z-index: 20;
}

.overlay.is-visible {
    display: flex;
}

.loader {
    width: 44px;
    height: 44px;
    border: 3px solid var(--grey-200);
    border-top-color: var(--brand-500);
    border-radius: 50%;
    animation: loader-spin 0.9s linear infinite;
}

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

/* Скелетоны */
.skeleton {
    position: relative;
    overflow: hidden;
    background-color: var(--grey-100);
    border-radius: var(--radius-sm);
}

.skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.85), transparent);
    animation: skeleton-wave 1.4s infinite;
}

@keyframes skeleton-wave {
    100% {
        transform: translateX(100%);
    }
}

/* ---------- Пустое состояние ---------- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 56px 20px;
    text-align: center;
    color: var(--grey-500);
}

.empty-state__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ink-800);
}

.empty-state svg {
    opacity: 0.5;
}

/* ---------- Утилиты ---------- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.is-hidden {
    display: none !important;
}

/* Сетка-помощник */
.grid-2,
.grid-3,
.grid-4 {
    display: grid;
    gap: 16px;
}

@media (min-width: 560px) {
    .container {
        padding: 0 24px;
    }

    .grid-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 900px) {
    .grid-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .grid-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (min-width: 1200px) {
    .container {
        padding: 0 32px;
    }
}

@media print {
    .header,
    .footer,
    .cookie-banner {
        display: none;
    }
}