/*
Theme Name: Crypto
Theme URI: https://wordpress.org
Author: Orkhan Chichitov
Author URI: https://wordpress.org
Description: A simple and clean WordPress theme for cryptocurrency-related websites. It features a modern design, responsive layout, and customizable options to create a unique online presence for your crypto business or blog.
Requires at least: 6.7
Tested up to: 6.9
Requires PHP: 7.2
Version: 1.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
*/

/* =====================================================================
   ROOT VARIABLES — Black / Burgundy / White palette
   ===================================================================== */
:root {
    --crypto-color-bg: #000000;
    --crypto-color-bg-alt: #0c0c0e;
    --crypto-color-surface: #141416;
    --crypto-color-surface-hover: #1c1c1f;
    --crypto-color-border: #2a2a2e;
    --crypto-color-accent: #6d001a;
    --crypto-color-accent-hover: #ff003d;
    --crypto-color-text: #ffffff;
    --crypto-color-text-muted: #b4b4ba;
    --crypto-radius: 14px;
    --crypto-radius-sm: 8px;
    --crypto-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --crypto-shadow-hover: 0 16px 40px rgba(109, 0, 26, 0.35);
    --crypto-transition: 0.3s ease;
    --crypto-section-y: 20px;
    --crypto-container: 1200px;
}

/* =====================================================================
   RESET & BASE
   ===================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background-color: var(--crypto-color-bg);
    color: var(--crypto-color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

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

h1, h2, h3, h4 {
    line-height: 1.25;
    margin: 0 0 16px;
}

h1 {
    font-size: clamp(28px, 4vw, 44px);
}

h2 {
    font-size: clamp(24px, 3vw, 34px);
}

h3 {
    font-size: 20px;
}

p {
    margin: 0 0 16px;
    color: var(--crypto-color-text-muted);
}

p a,
li a,
.crypto-faq__item a {
    color: var(--crypto-color-accent-hover);
    text-decoration: none;
    transition: color var(--crypto-transition);
}

p a:hover,
li a:hover,
.crypto-faq__item a:hover {
    color: var(--crypto-color-text);
}

/* =====================================================================
   LONG-FORM ARTICLE CONTENT (справочные страницы)
   ===================================================================== */
.crypto-article h2 {
    margin-top: 40px;
}

.crypto-article h3 {
    margin-top: 24px;
}

.crypto-article ol,
.crypto-article ul:not(.crypto-checklist) {
    padding-left: 22px;
    color: var(--crypto-color-text-muted);
    margin: 0 0 16px;
}

.crypto-article li {
    margin-bottom: 8px;
}

.crypto-table-wrap {
    overflow-x: auto;
    margin: 0 0 24px;
}

.crypto-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    overflow: hidden;
}

.crypto-table th,
.crypto-table td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--crypto-color-border);
    font-size: 15px;
    color: var(--crypto-color-text-muted);
}

.crypto-table th {
    color: var(--crypto-color-text);
    background-color: var(--crypto-color-surface-hover);
}

.container {
    width: 100%;
    max-width: var(--crypto-container);
    margin: 0 auto;
    padding: 0 20px;
}

.crypto-section {
    padding: 64px 0;
}

.crypto-section__lead {
    max-width: 760px;
    margin-bottom: calc(var(--crypto-section-y) + 8px);
}

/* =====================================================================
   BUTTONS
   ===================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--crypto-radius-sm);
    font-weight: 600;
    font-size: 16px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--crypto-transition), box-shadow var(--crypto-transition), background-color var(--crypto-transition);
}

.btn--primary {
    background-color: var(--crypto-color-accent);
    color: var(--crypto-color-text);
}

.btn--primary:hover {
    background-color: var(--crypto-color-accent-hover);
    transform: translateY(-3px);
    box-shadow: var(--crypto-shadow-hover);
}

.btn--outline {
    background-color: transparent;
    color: var(--crypto-color-text);
    border-color: var(--crypto-color-border);
}

.btn--outline:hover {
    border-color: var(--crypto-color-accent);
    transform: translateY(-3px);
}

/* =====================================================================
   REVEAL / SCROLL ANIMATIONS
   ===================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.js-parallax {
    will-change: transform;
}

/* =====================================================================
   HEADER
   ===================================================================== */
.crypto-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--crypto-color-border);
}

.crypto-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-top: 16px;
    padding-bottom: 16px;
}

.crypto-header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.crypto-header__logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--crypto-color-text);
}

.crypto-header__logo img {
    max-height: 44px;
    width: auto;
}

.crypto-header__nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.crypto-header__menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.crypto-header__menu > .menu-item {
    position: relative;
}

.crypto-header__menu > .menu-item > a {
    display: block;
    color: var(--crypto-color-text);
    padding: 10px 14px;
    border-radius: var(--crypto-radius-sm);
    font-weight: 500;
    transition: color var(--crypto-transition), background-color var(--crypto-transition);
}

.crypto-header__menu > .menu-item > a:hover {
    color: var(--crypto-color-text);
    background-color: var(--crypto-color-surface);
}

.crypto-header__menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    max-height: 0;
    overflow: hidden;
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius-sm);
    box-shadow: var(--crypto-shadow);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--crypto-transition), max-height var(--crypto-transition), visibility var(--crypto-transition);
    z-index: 10;
}

.crypto-header__menu .menu-item-has-children:hover .sub-menu,
.crypto-header__menu .menu-item-has-children:focus-within .sub-menu {
    opacity: 1;
    visibility: visible;
    max-height: 480px;
    overflow-y: auto;
}

.crypto-header__menu .sub-menu a {
    display: block;
    padding: 10px 16px;
    font-size: 15px;
    color: var(--crypto-color-text-muted);
    transition: color var(--crypto-transition), background-color var(--crypto-transition);
}

.crypto-header__menu .sub-menu a:hover {
    color: var(--crypto-color-text);
    background-color: var(--crypto-color-surface-hover);
}

.crypto-header__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius-sm);
    cursor: pointer;
    flex-shrink: 0;
}

.crypto-header__burger span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--crypto-color-text);
    transition: transform var(--crypto-transition), opacity var(--crypto-transition);
}

/* =====================================================================
   MOBILE MENU
   ===================================================================== */
.crypto-mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 150;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.crypto-mobile-menu-overlay--open {
    opacity: 1;
}

.crypto-mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 84vw);
    background-color: var(--crypto-color-bg-alt);
    border-left: 1px solid var(--crypto-color-border);
    z-index: 160;
    padding: 24px 20px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.25s ease;
}

.crypto-mobile-menu--open {
    transform: translateX(0);
}

.crypto-mobile-menu__close {
    position: relative;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius-sm);
    cursor: pointer;
    margin-left: auto;
    display: block;
}

.crypto-mobile-menu__close span {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 2px;
    background-color: var(--crypto-color-text);
}

.crypto-mobile-menu__close span:first-child {
    transform: translate(-50%, -50%) rotate(45deg);
}

.crypto-mobile-menu__close span:last-child {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.crypto-mobile-menu__nav {
    margin-top: 24px;
}

.crypto-mobile-menu__list > .menu-item {
    border-bottom: 1px solid var(--crypto-color-border);
}

.crypto-mobile-menu__list > .menu-item > a {
    display: block;
    padding: 14px 4px;
    font-weight: 500;
}

.crypto-mobile-menu__list .sub-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--crypto-transition);
    padding-left: 12px;
}

.crypto-mobile-menu__list .menu-item-has-children.crypto-mobile-menu__item--open > .sub-menu {
    max-height: 800px;
    padding-bottom: 8px;
}

.crypto-mobile-menu__list .sub-menu a {
    display: block;
    padding: 10px 4px;
    color: var(--crypto-color-text-muted);
}

/* =====================================================================
   FOOTER
   ===================================================================== */
.crypto-footer {
    background-color: var(--crypto-color-bg-alt);
    border-top: 1px solid var(--crypto-color-border);
    margin-top: 40px;
}

.crypto-footer__inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    padding: 56px 20px;
}

.crypto-footer__heading {
    font-size: 16px;
    color: var(--crypto-color-text);
    margin-bottom: 16px;
}

.crypto-footer__list li {
    margin-bottom: 10px;
}

.crypto-footer__list a {
    color: var(--crypto-color-text-muted);
    font-size: 14px;
    transition: color var(--crypto-transition);
}

.crypto-footer__list a:hover {
    color: var(--crypto-color-accent-hover);
}

.crypto-footer__bottom {
    border-top: 1px solid var(--crypto-color-border);
    padding: 20px 0;
}

.crypto-footer__copyright {
    margin: 0;
    font-size: 13px;
    color: var(--crypto-color-text-muted);
    text-align: center;
}

/* =====================================================================
   HERO
   ===================================================================== */
.crypto-hero {
    padding: 72px 0;
    background: radial-gradient(circle at top right, rgba(109, 0, 26, 0.35), transparent 55%), var(--crypto-color-bg);
}

.crypto-hero__inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.crypto-hero__title {
    margin-bottom: var(--crypto-section-y);
}

.crypto-hero__widget {
    display: flex;
    justify-content: center;
}

/* =====================================================================
   WIDGET / PRICE CARD
   ===================================================================== */
.crypto-widget {
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 12px;
    box-shadow: var(--crypto-shadow);
    transition: box-shadow var(--crypto-transition), transform var(--crypto-transition);
}

.crypto-widget:hover {
    box-shadow: var(--crypto-shadow-hover);
    transform: translateY(-4px);
}

.crypto-widget iframe {
    max-width: 100%;
    border-radius: var(--crypto-radius-sm);
}

.crypto-price-card {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 16px;
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 24px 28px;
    margin-top: var(--crypto-section-y);
    transition: box-shadow var(--crypto-transition), transform var(--crypto-transition);
}

.crypto-price-card:hover {
    box-shadow: var(--crypto-shadow-hover);
    transform: translateY(-4px);
}

.crypto-price-card__label {
    font-weight: 600;
    color: var(--crypto-color-text-muted);
}

.crypto-price-card__value {
    font-size: 28px;
    font-weight: 700;
}

.crypto-price-card__change {
    font-weight: 600;
}

.crypto-price-card__change--up {
    color: #2fbf71;
}

.crypto-price-card__change--down {
    color: #ff5c6c;
}

/* =====================================================================
   PAIR CHART / TABLE (used on pair pages)
   ===================================================================== */
.crypto-pair-chart,
.crypto-pair-table {
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 24px;
    margin-top: var(--crypto-section-y);
}

.crypto-pair-chart__canvas {
    width: 100%;
    height: 220px;
}

.crypto-pair-table table {
    width: 100%;
    border-collapse: collapse;
}

.crypto-pair-table th,
.crypto-pair-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--crypto-color-border);
    font-size: 14px;
}

/* =====================================================================
   SPLIT SECTION (текст + картинка)
   ===================================================================== */
.crypto-split {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.crypto-split--reverse {
    grid-template-columns: 0.9fr 1.1fr;
}

.crypto-split--reverse .crypto-split__text {
    order: 2;
}

.crypto-split--reverse .crypto-split__media {
    order: 1;
}

.crypto-split__media img {
    border-radius: var(--crypto-radius);
    box-shadow: var(--crypto-shadow);
    transition: transform var(--crypto-transition), box-shadow var(--crypto-transition);
    object-fit: cover;
    width: 100%;
    height: 100%;
    max-height: 360px;
}

.crypto-split__media img:hover {
    transform: scale(1.03);
    box-shadow: var(--crypto-shadow-hover);
}

/* =====================================================================
   NUMBERED STEPS (how-it-works)
   ===================================================================== */
.crypto-steps {
    counter-reset: crypto-step;
    display: grid;
    gap: var(--crypto-section-y);
}

.crypto-steps li {
    list-style: none;
    position: relative;
    counter-increment: crypto-step;
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 20px 24px 20px 64px;
    color: var(--crypto-color-text-muted);
    transition: transform var(--crypto-transition), box-shadow var(--crypto-transition), border-color var(--crypto-transition);
}

.crypto-steps li:hover {
    transform: translateY(-4px);
    box-shadow: var(--crypto-shadow-hover);
    border-color: var(--crypto-color-accent);
}

.crypto-steps li::before {
    content: counter(crypto-step);
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: var(--crypto-color-accent);
    color: var(--crypto-color-text);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

/* =====================================================================
   POPULAR PAIRS / LINK CARDS
   ===================================================================== */
.crypto-pairs__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--crypto-section-y);
}

.crypto-pair-link {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 18px 20px;
    font-weight: 600;
    transition: transform var(--crypto-transition), box-shadow var(--crypto-transition), border-color var(--crypto-transition);
}

.crypto-pair-link:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--crypto-shadow-hover);
    border-color: var(--crypto-color-accent);
}

.crypto-pair-link__icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* =====================================================================
   BENEFIT CARDS
   ===================================================================== */
.crypto-benefits__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--crypto-section-y);
}

.crypto-benefit-card {
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 28px;
    transition: transform var(--crypto-transition), box-shadow var(--crypto-transition), border-color var(--crypto-transition);
}

.crypto-benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--crypto-shadow-hover);
    border-color: var(--crypto-color-accent);
}

.crypto-benefit-card__icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
}

/* =====================================================================
   CHECKLIST
   ===================================================================== */
.crypto-checklist {
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 28px 32px;
    margin: var(--crypto-section-y) 0;
}

.crypto-checklist li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: var(--crypto-color-text-muted);
}

.crypto-checklist li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--crypto-color-accent-hover);
    font-weight: 700;
}

/* =====================================================================
   REVIEWS
   ===================================================================== */
.crypto-reviews__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--crypto-section-y);
}

.crypto-review-card {
    background-color: var(--crypto-color-surface);
    border: 1px solid var(--crypto-color-border);
    border-radius: var(--crypto-radius);
    padding: 24px;
    transition: transform var(--crypto-transition), box-shadow var(--crypto-transition);
}

.crypto-review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--crypto-shadow-hover);
}

.crypto-review-card__name {
    font-weight: 700;
    color: var(--crypto-color-text);
    margin-bottom: 4px;
}

.crypto-review-card__rating {
    color: #f5b301;
    margin-bottom: 12px;
    display: block;
}

/* =====================================================================
   FAQ
   ===================================================================== */
.crypto-faq__item {
    border-bottom: 1px solid var(--crypto-color-border);
    padding: 20px 0;
}

.crypto-faq__item h3 {
    margin-bottom: 10px;
    color: var(--crypto-color-text);
}

/* =====================================================================
   CTA
   ===================================================================== */
.crypto-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--crypto-color-accent), var(--crypto-color-bg-alt));
    border-radius: var(--crypto-radius);
    padding: 56px 32px;
}

.crypto-cta p {
    color: rgba(255, 255, 255, 0.85);
}

.crypto-cta .btn--primary {
    background-color: #ffffff;
    color: #000000;
}

.crypto-cta .btn--primary:hover {
    background-color: #eaeaea;
}

.crypto-cta .btn {
    margin: 6px;
}

.crypto-cta .btn--outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff;
}

.crypto-cta .btn--outline:hover {
    border-color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
}

/* =====================================================================
   404 PAGE
   ===================================================================== */
.error404__wrapper {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.error404__code {
    font-size: clamp(80px, 14vw, 160px);
    font-weight: 800;
    color: var(--crypto-color-accent-hover);
    line-height: 1;
    margin-bottom: 8px;
}

.error404__title {
    margin-bottom: 12px;
}

.error404__text {
    max-width: 460px;
    margin-left: auto;
    margin-right: auto;
}

.error404__actions {
    margin-top: 24px;
}

/* =====================================================================
   RESPONSIVE — 768px
   ===================================================================== */
@media (max-width: 768px) {
    .crypto-header__nav {
        display: none;
    }

    .crypto-header__burger {
        display: flex;
    }

    .crypto-hero__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .crypto-hero__widget {
        order: -1;
    }

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

    .crypto-pairs__grid,
    .crypto-benefits__grid,
    .crypto-reviews__grid {
        grid-template-columns: 1fr;
    }

    .crypto-split,
    .crypto-split--reverse {
        grid-template-columns: 1fr;
    }

    .crypto-split--reverse .crypto-split__text,
    .crypto-split--reverse .crypto-split__media {
        order: initial;
    }

    .crypto-section {
        padding: 48px 0;
    }
}

/* =====================================================================
   RESPONSIVE — 480px
   ===================================================================== */
@media (max-width: 480px) {
    .crypto-footer__inner {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 16px;
    }

    .crypto-section {
        padding: 36px 0;
    }

    .crypto-checklist,
    .crypto-benefit-card,
    .crypto-review-card {
        padding: 20px;
    }
}