:root {
    --color-background: #f8f9fa;
    --color-surface: #ffffff;
    --color-surface-low: #f3f4f5;
    --color-surface-container: #edeeef;
    --color-surface-high: #e7e8e9;
    --color-surface-highest: #e1e3e4;
    --color-text: #191c1d;
    --color-muted: #595e6b;
    --color-primary: #0041e0;
    --color-primary-bright: #2e5cff;
    --color-primary-soft: #ebf0ff;
    --color-outline: #c4c5d9;
    --color-dark: #000000;
    --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-display: "Hanken Grotesk", "Inter", system-ui, sans-serif;
    --font-label: "JetBrains Mono", ui-monospace, monospace;
    --container: 1280px;
    --header-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --shadow-card: 0 1px 2px rgba(25, 28, 29, 0.05), 0 8px 28px rgba(46, 92, 255, 0.05);
    --shadow-hover: 0 4px 20px rgba(46, 92, 255, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    background: var(--color-background);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

body,
button,
input {
    font-family: var(--font-body);
}

button,
input {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

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

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

h1,
h2,
h3,
h4,
p,
ul {
    margin-top: 0;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
}

button {
    color: inherit;
}

[hidden] {
    display: none !important;
}

.material-symbols-outlined {
    display: inline-block;
    flex: 0 0 auto;
    font-family: "Material Symbols Outlined";
    font-size: 24px;
    font-style: normal;
    font-weight: 400;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: "liga";
    -webkit-font-smoothing: antialiased;
    font-feature-settings: "liga";
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: 100;
    transform: translateY(-150%);
    padding: 8px 12px;
    border-radius: 6px;
    background: var(--color-primary);
    color: #fff;
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 50;
    height: var(--header-height);
    border-bottom: 1px solid rgba(225, 227, 228, 0.85);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 1px 6px rgba(25, 28, 29, 0.06);
    backdrop-filter: blur(16px);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: none;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: max-content;
    color: var(--color-primary);
}

.brand__mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: contain;
}

.brand__name {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.site-header__panel {
    display: contents;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-left: auto;
    margin-right: 42px;
}

.site-nav__link {
    position: relative;
    padding: 20px 2px 18px;
    color: var(--color-muted);
    font-size: 15px;
    transition: color 160ms ease;
}

.site-nav__link::after {
    position: absolute;
    right: 0;
    bottom: 13px;
    left: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--color-primary);
    content: "";
    opacity: 0;
    transform: scaleX(0.45);
    transition: opacity 160ms ease, transform 160ms ease;
}

.site-nav__link:hover,
.site-nav__link.is-active {
    color: var(--color-primary);
}

.site-nav__link.is-active::after {
    opacity: 1;
    transform: scaleX(1);
}

.site-actions,
.button-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.language-switcher {
    position: relative;
}

.language-switcher__button {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 40px;
    padding: 0 10px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--color-muted);
    cursor: pointer;
}

.language-switcher__button:hover {
    background: var(--color-surface-low);
    color: var(--color-primary);
}

.language-switcher__button .material-symbols-outlined {
    font-size: 20px;
}

.language-switcher__arrow {
    font-size: 16px !important;
}

.language-switcher__menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    width: 140px;
    overflow: hidden;
    border: 1px solid var(--color-outline);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow-card);
}

.language-switcher__menu a {
    display: block;
    padding: 9px 13px;
    font-size: 14px;
}

.language-switcher__menu a:hover {
    background: var(--color-primary-soft);
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 10px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
}

.menu-toggle__line {
    display: block;
    width: 22px;
    height: 2px;
    margin: 4px 0;
    border-radius: 2px;
    background: var(--color-text);
    transition: transform 180ms ease, opacity 180ms ease;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 20px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-weight: 600;
    line-height: 1.35;
    cursor: pointer;
    transition: background 160ms ease, color 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button:active {
    transform: scale(0.98);
}

.button--small {
    min-height: 40px;
    padding: 8px 16px;
    font-size: 14px;
}

.button--large {
    min-height: 52px;
    padding: 12px 30px;
    font-family: var(--font-display);
    font-size: 18px;
}

.button--primary {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(46, 92, 255, 0.27);
}

.button--primary:hover {
    border-color: #0037bd;
    background: #0037bd;
}

.button--outline {
    border-color: var(--color-primary);
    background: transparent;
    color: var(--color-primary);
}

.button--outline:hover,
.button--surface:hover {
    background: var(--color-primary-soft);
}

.button--surface {
    border-color: var(--color-outline);
    background: #fff;
    color: var(--color-text);
}

.button--whatsapp {
    border-color: #25d366;
    background: #25d366;
    color: #fff;
}

.button--block {
    width: 100%;
    margin-top: auto;
}

.page-shell {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 96px 40px 64px;
}

.page-shell.page-shell--home {
    max-width: none;
    padding: var(--header-height) 0 64px;
}

.content-section {
    margin-top: 64px;
}

.content-section > h2,
.section-heading h2 {
    margin-bottom: 32px;
    color: var(--color-text);
    font-size: 32px;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.01em;
    text-align: center;
}

.home-hero {
    position: relative;
    display: flex;
    min-height: min(680px, calc(100svh - var(--header-height)));
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 80px 24px 96px;
    border: 0;
    border-radius: 0;
    background: #fbfcff url("../images/hero-cloud-phone-bg.webp") center / cover no-repeat;
    text-align: center;
}

.home-hero__glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 72%, var(--color-background) 100%);
    pointer-events: none;
}

.home-hero > *:not(.home-hero__glow) {
    position: relative;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 5px 12px;
    border: 1px solid rgba(0, 65, 224, 0.18);
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    font-family: var(--font-label);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.eyebrow .material-symbols-outlined {
    font-size: 16px;
}

.home-hero h1,
.page-intro h1,
.help-hero h1 {
    max-width: 820px;
    margin-bottom: 16px;
    font-size: 48px;
    font-weight: 700;
    line-height: 1.16;
    letter-spacing: -0.02em;
}

.home-hero h1 span {
    background: linear-gradient(135deg, var(--color-primary) 20%, var(--color-primary-bright) 60%, #6d7cff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.home-hero h1 {
    max-width: 1040px;
    font-size: clamp(48px, 4vw, 68px);
}

.home-hero p,
.page-intro p,
.help-hero > p {
    max-width: 760px;
    margin-bottom: 32px;
    color: var(--color-muted);
    font-size: 18px;
    line-height: 1.55;
}

.home-features {
    width: min(calc(100% - clamp(32px, 6vw, 80px)), var(--container));
    margin-inline: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.feature-card {
    position: relative;
    min-height: 200px;
    padding: 24px;
    overflow: hidden;
    border: 0;
    border-radius: 12px;
    background: transparent;
    box-shadow: none;
    transition: transform 240ms ease;
}

.feature-card:hover {
    transform: translateY(-4px);
}

.feature-card--wide {
    grid-column: span 2;
}

.feature-card:nth-child(2) .feature-card__icon {
    color: #c44100;
}

.feature-card:nth-child(4) {
    background: linear-gradient(135deg, var(--color-background), var(--color-surface-low));
}

.feature-card__icon {
    margin-bottom: 16px;
    color: var(--color-primary);
    font-size: 40px;
}

.feature-card h3 {
    margin-bottom: 8px;
    font-size: 20px;
    line-height: 1.4;
}

.feature-card p {
    max-width: 560px;
    margin-bottom: 16px;
    color: var(--color-muted);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    color: var(--color-primary);
}

.text-link:hover {
    text-decoration: underline;
}

.text-link .material-symbols-outlined {
    font-size: 18px;
}

.page-intro,
.help-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.page-intro--compact {
    max-width: 800px;
    margin: 0 auto 64px;
}

.billing-toggle {
    display: inline-flex;
    padding: 4px;
    border: 1px solid var(--color-outline);
    border-radius: 999px;
    background: var(--color-surface-low);
}

.billing-toggle button {
    padding: 8px 24px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--color-muted);
    cursor: pointer;
}

.billing-toggle button.is-active {
    background: #fff;
    color: var(--color-text);
    box-shadow: 0 1px 4px rgba(25, 28, 29, 0.1);
}

.billing-toggle span {
    margin-left: 4px;
    padding: 2px 7px;
    border-radius: 999px;
    background: #dde1ff;
    color: var(--color-primary);
    font-size: 12px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
    gap: 24px;
}

.price-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 24px;
    border: 0;
    border-radius: 12px;
    background: transparent;
    box-shadow: none;
    transition: transform 220ms ease;
}

.price-card:hover {
    transform: translateY(-4px);
}

.price-card--featured {
    z-index: 1;
    background: #fff;
    transform: scale(1.045);
    box-shadow: 0 8px 24px rgba(46, 92, 255, 0.05);
}

.price-card--featured:hover {
    transform: scale(1.045) translateY(-4px);
}

.price-card__badge {
    position: absolute;
    top: -1px;
    right: -1px;
    padding: 5px 12px;
    border-radius: 0 12px 0 8px;
    background: var(--color-primary-bright);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
}

.price-card h2 {
    margin-bottom: 8px;
    font-size: 20px;
}

.price-card--featured h2 {
    color: var(--color-primary-bright);
}

.price-card__summary {
    margin-bottom: 24px;
    color: var(--color-muted);
    font-size: 14px;
}

.price-card__price {
    margin-bottom: 24px;
}

.price-card__price strong {
    font-family: var(--font-display);
    font-size: 32px;
    line-height: 1.25;
}

.price-card__price span {
    color: var(--color-muted);
}

.check-list {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
    padding: 0;
    list-style: none;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #434656;
    font-size: 14px;
}

.check-list .material-symbols-outlined {
    color: var(--color-primary);
    font-size: 20px;
}

.check-list li.is-unavailable {
    opacity: 0.48;
    text-decoration: line-through;
}

.check-list li.is-unavailable .material-symbols-outlined {
    color: #747688;
}

.comparison-section h2,
.faq-section h2 {
    text-align: center;
}

.table-scroll {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.comparison-table th,
.comparison-table td {
    width: 25%;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-surface-high);
}

.comparison-table th {
    color: var(--color-muted);
    font-weight: 500;
}

.comparison-table th:not(:first-child),
.comparison-table td:not(:first-child) {
    text-align: center;
}

.comparison-table td {
    font-size: 14px;
}

.comparison-table th.is-featured {
    background: transparent;
    color: var(--color-primary);
    font-weight: 700;
}

.comparison-table td.is-featured {
    background: transparent;
    color: var(--color-text);
    font-weight: 500;
}

.faq-section {
    max-width: 800px;
    margin-right: auto;
    margin-left: auto;
}

.faq-list {
    display: grid;
    gap: 16px;
}

.faq-card {
    border: 0;
    border-radius: 8px;
    background: transparent;
    box-shadow: none;
}

.faq-card button {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px 10px;
    border: 0;
    background: transparent;
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-card button[aria-expanded="false"] {
    padding-bottom: 20px;
}

.faq-card button .material-symbols-outlined {
    color: var(--color-muted);
    transition: transform 180ms ease;
}

.faq-card button[aria-expanded="true"] .material-symbols-outlined {
    transform: rotate(180deg);
}

.faq-card__answer {
    padding: 0 24px 20px;
    color: var(--color-muted);
    font-size: 14px;
}

.page-shell--help {
    display: flex;
    flex-direction: column;
    gap: 64px;
    padding-bottom: 32px;
}

.page-shell--help .content-section {
    margin-top: 0;
}

.help-hero {
    position: relative;
    overflow: hidden;
    padding: 64px 32px;
    border: 1px solid var(--color-surface-high);
    border-radius: 12px;
    background: #fff;
}

.help-hero::before {
    position: absolute;
    inset: -60% 10% auto;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(46, 92, 255, 0.1), transparent 68%);
    content: "";
}

.help-hero > * {
    position: relative;
}

.search-box {
    position: relative;
    display: flex;
    width: min(100%, 760px);
    align-items: center;
}

.search-box > .material-symbols-outlined {
    position: absolute;
    left: 16px;
    z-index: 1;
    color: var(--color-muted);
}

.search-box input {
    width: 100%;
    height: 58px;
    padding: 0 58px 0 48px;
    border: 1px solid var(--color-outline);
    border-radius: 12px;
    outline: none;
    background: var(--color-surface-low);
    color: var(--color-text);
    font-size: 17px;
    box-shadow: none;
    transition: background 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.search-box input:focus {
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(46, 92, 255, 0.12);
}

.search-box button {
    position: absolute;
    right: 8px;
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--color-primary);
    cursor: pointer;
}

.search-box button:hover {
    background: var(--color-primary-soft);
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.section-heading--bordered {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-surface-high);
}

.section-heading h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-size: 24px;
    text-align: left;
}

.section-heading h2 .material-symbols-outlined {
    color: var(--color-primary);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
}

.video-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 8px;
}

.video-card__media,
.tutorial-card__media {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border: 1px solid var(--color-surface-high);
    border-radius: 12px;
    background: var(--color-surface-low);
}

.video-card__media img,
.tutorial-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 300ms ease, opacity 300ms ease;
}

.video-card:hover img,
.tutorial-card:hover img {
    transform: scale(1.025);
}

.video-card__overlay {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    background: rgba(0, 0, 0, 0.34);
    transition: background 240ms ease;
}

.video-card:hover .video-card__overlay,
.tutorial-card:hover .video-card__overlay {
    background: rgba(0, 0, 0, 0.18);
}

.play-button {
    display: grid;
    width: 64px;
    height: 64px;
    place-items: center;
    border-radius: 50%;
    background: rgba(0, 65, 224, 0.92);
    color: #fff;
    font-size: 38px;
    box-shadow: 0 5px 22px rgba(0, 65, 224, 0.34);
    transition: transform 240ms ease;
}

.video-card:hover .play-button,
.tutorial-card:hover .play-button,
.hero-video:hover > .play-button {
    transform: scale(1.1);
}

.play-button--small {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--color-primary);
    font-size: 28px;
}

.duration-badge {
    position: absolute;
    right: 8px;
    bottom: 8px;
    padding: 3px 7px;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.74);
    color: #fff;
    font-family: var(--font-label);
    font-size: 11px;
}

.video-card h3 {
    margin: 3px 0 0;
    overflow: hidden;
    font-size: 20px;
    line-height: 1.4;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.video-card:hover h3 {
    color: var(--color-primary);
}

.video-card p {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    color: var(--color-muted);
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.topic-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.topic-card {
    display: flex;
    min-height: 166px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    border: 1px solid var(--color-surface-high);
    border-radius: 12px;
    background: #fff;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

.topic-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-card);
}

.topic-card__icon {
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border-radius: 8px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.topic-card strong,
.topic-card small {
    display: block;
}

.topic-card strong {
    margin-bottom: 4px;
    font-family: var(--font-display);
    font-size: 20px;
}

.topic-card:hover strong {
    color: var(--color-primary);
}

.topic-card small {
    color: var(--color-muted);
    font-size: 14px;
}

.support-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 32px;
    border: 1px solid var(--color-surface-high);
    border-radius: 12px;
    background: #fff;
}

.support-cta h2 {
    margin-bottom: 6px;
    font-size: 24px;
}

.support-cta p {
    margin-bottom: 0;
    color: var(--color-muted);
}

.support-cta .button {
    font-family: var(--font-label);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.tutorials-intro {
    max-width: 780px;
    margin: 0 auto;
}

.tutorials-intro .search-box {
    margin-top: 16px;
}

.search-box--soft input {
    border-color: transparent;
    border-radius: 8px;
    box-shadow: 0 1px 4px rgba(25, 28, 29, 0.06);
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 64px;
}

.filter-chip {
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 999px;
    background: var(--color-surface-low);
    color: var(--color-muted);
    font-family: var(--font-label);
    font-size: 12px;
    cursor: pointer;
}

.filter-chip:hover {
    background: var(--color-surface-high);
}

.filter-chip.is-active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-top: 64px;
}

.tutorial-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--color-surface-highest);
    border-radius: 12px;
    background: #fff;
    transition: box-shadow 200ms ease, transform 200ms ease;
}

.tutorial-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.tutorial-card__media {
    border: 0;
    border-radius: 0;
}

.tutorial-card__body {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
}

.tutorial-card h2 {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    font-size: 20px;
    line-height: 1.4;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.tutorial-card h2 a:hover {
    color: var(--color-primary);
}

.tutorial-card p {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    color: var(--color-muted);
    font-size: 14px;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination button {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: var(--color-muted);
    cursor: pointer;
}

.pagination button:hover:not(:disabled) {
    background: var(--color-surface-low);
}

.pagination button:first-child,
.pagination button:last-child {
    border-color: var(--color-outline);
}

.pagination button.is-current {
    background: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-card);
}

.pagination button:disabled {
    opacity: 0.45;
    cursor: default;
}

.page-shell--tutorial-detail {
    max-width: var(--container);
    padding-top: 96px;
    padding-right: 24px;
    padding-bottom: 64px;
    padding-left: 24px;
}

.page-shell--tutorial-detail .breadcrumbs {
    margin-bottom: 32px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
    overflow: hidden;
    color: var(--color-muted);
    font-family: var(--font-label);
    font-size: 12px;
    white-space: nowrap;
}

.breadcrumbs a:hover {
    color: var(--color-primary);
}

.breadcrumbs .material-symbols-outlined {
    font-size: 16px;
}

.breadcrumbs > span:last-child {
    overflow: hidden;
    color: var(--color-text);
    text-overflow: ellipsis;
}

.tutorial-layout {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
    gap: 32px;
}

.tutorial-main {
    display: flex;
    grid-column: span 8;
    min-width: 0;
    flex-direction: column;
    gap: 16px;
}

.hero-video {
    position: relative;
    display: grid;
    aspect-ratio: 16 / 9;
    place-items: center;
    overflow: hidden;
    border: 1px solid var(--color-surface-highest);
    border-radius: 12px;
    background: var(--color-dark);
    box-shadow: 0 8px 30px rgba(46, 92, 255, 0.08);
}

.hero-video > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.63;
    filter: saturate(0.75);
    transition: opacity 300ms ease, transform 500ms ease;
}

.hero-video:hover > img {
    opacity: 0.78;
    transform: scale(1.015);
}

.hero-video__shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(0, 0, 0, 0.75), transparent 60%);
}

.hero-video > .play-button {
    position: relative;
}

.hero-video__controls {
    position: absolute;
    right: 16px;
    bottom: 14px;
    left: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transition: opacity 200ms ease;
}

.hero-video:hover .hero-video__controls {
    opacity: 1;
}

.hero-video__controls i {
    position: relative;
    display: block;
    width: 100%;
    height: 4px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.28);
}

.hero-video__controls i::after {
    display: block;
    width: 33%;
    height: 100%;
    background: var(--color-primary-bright);
    content: "";
}

.hero-video__controls small {
    color: #fff;
    font-family: var(--font-label);
}

.tutorial-content,
.related-panel {
    border: 1px solid var(--color-surface-highest);
    border-radius: 12px;
    background: #fff;
}

.tutorial-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 16px;
}

.tutorial-content header {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tutorial-content header h1 {
    margin: 0;
    font-size: 32px;
    line-height: 1.25;
    letter-spacing: -0.01em;
}

.tutorial-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--color-muted);
    font-family: var(--font-label);
    font-size: 12px;
}

.tutorial-meta > span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.tutorial-meta .material-symbols-outlined {
    font-size: 16px;
}

.tutorial-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 4px 0;
    border-top: 1px solid var(--color-surface-high);
    border-bottom: 1px solid var(--color-surface-high);
}

.tutorial-actions button,
.tutorial-actions a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 40px;
    padding: 8px 16px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--color-muted);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.tutorial-actions a {
    margin-left: auto;
}

.tutorial-actions button:hover,
.tutorial-actions a:hover {
    background: var(--color-surface-low);
    color: var(--color-primary);
}

.tutorial-copy {
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: #434656;
    line-height: 1.625;
}

.tutorial-copy p {
    margin: 0;
}

.tutorial-copy h2 {
    margin: 8px 0 0;
    color: var(--color-text);
    font-size: 20px;
}

.tutorial-copy ul {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0 0 0 8px;
    list-style: none;
}

.tutorial-copy li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.tutorial-copy li .material-symbols-outlined {
    margin-top: 3px;
    color: var(--color-primary);
    font-size: 20px;
}

.related-panel {
    grid-column: span 4;
    padding: 16px;
}

.related-panel__heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.related-panel__heading h2 {
    margin: 0;
    font-size: 20px;
}

.related-panel__heading a {
    color: var(--color-primary);
    font-family: var(--font-label);
    font-size: 12px;
}

.related-panel__heading a:hover {
    text-decoration: underline;
}

.related-list {
    display: grid;
    gap: 12px;
}

.related-card {
    display: grid;
    grid-template-columns: 128px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    margin: 0 -8px;
    padding: 8px;
    border-radius: 8px;
}

.related-card:hover {
    background: var(--color-surface-low);
}

.related-card__media {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border: 1px solid var(--color-surface-highest);
    border-radius: 8px;
    background: var(--color-surface-highest);
}

.related-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 260ms ease;
}

.related-card:hover img {
    transform: scale(1.04);
}

.related-card__media small {
    position: absolute;
    right: 4px;
    bottom: 4px;
    padding: 2px 4px;
    border-radius: 3px;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    font-family: var(--font-label);
    font-size: 10px;
}

.related-card > span:last-child {
    min-width: 0;
}

.related-card strong,
.related-card > span:last-child small {
    display: block;
}

.related-card strong {
    overflow: hidden;
    font-family: var(--font-display);
    font-size: 14px;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.related-card:hover strong {
    color: var(--color-primary);
}

.related-card > span:last-child small {
    margin-top: 5px;
    color: var(--color-muted);
    font-family: var(--font-label);
    font-size: 10px;
}

.video-card__media video,
.tutorial-card__media video,
.related-card__media video,
.hero-video video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-video--with-media {
    aspect-ratio: auto;
}

.hero-video--with-media video {
    position: relative;
    inset: auto;
    height: auto;
    aspect-ratio: auto 16 / 9;
    max-height: min(72vh, 720px);
    object-fit: contain;
}

.media-placeholder {
    display: grid;
    width: 100%;
    height: 100%;
    place-content: center;
    place-items: center;
    gap: 8px;
    background: linear-gradient(145deg, #eef3ff, #f7f9fc);
    color: var(--color-primary);
}

.media-placeholder .material-symbols-outlined {
    font-size: 42px;
}

.media-placeholder small {
    color: var(--color-muted);
}

.empty-state {
    margin: 32px 0;
    padding: 32px;
    border: 1px dashed var(--color-surface-highest);
    border-radius: 12px;
    color: var(--color-muted);
    text-align: center;
}

[data-tutorial-card][hidden] {
    display: none;
}

.site-footer {
    position: relative;
    overflow: hidden;
    border-top: 0;
    background: linear-gradient(180deg, #f8faff 0%, #f3f7ff 100%);
}

.site-footer::before {
    position: absolute;
    inset: 0;
    background: url("../images/hero-cloud-phone-bg.webp") center / cover no-repeat;
    content: "";
    opacity: 0.14;
    pointer-events: none;
}

.site-footer::after {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 65, 224, 0.2) 28%, var(--color-primary) 50%, rgba(0, 65, 224, 0.2) 72%, transparent 100%);
    content: "";
}

.site-footer__inner {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 56px 40px 24px;
}

.site-footer__main {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(360px, 0.8fr);
    align-items: start;
    gap: 80px;
}

.site-footer__brand .brand {
    gap: 12px;
}

.site-footer__brand .brand__mark {
    width: 36px;
    height: 36px;
}

.site-footer__brand .brand__name {
    font-size: 22px;
}

.site-footer__brand p {
    max-width: 400px;
    margin: 16px 0 0;
    color: var(--color-muted);
    font-size: 15px;
}

.site-footer__navigation {
    display: grid;
    grid-template-columns: repeat(2, minmax(140px, 1fr));
    gap: 48px;
}

.site-footer__link-group h2 {
    margin-bottom: 16px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
}

.site-footer__links {
    display: grid;
    gap: 10px;
}

.site-footer__links a {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    gap: 2px;
    color: var(--color-muted);
    font-size: 14px;
    transition: color 160ms ease, transform 160ms ease;
}

.site-footer__links .material-symbols-outlined {
    font-size: 16px;
    opacity: 0.55;
    transition: transform 160ms ease;
}

.site-footer__links a:hover {
    color: var(--color-primary);
    transform: translateX(2px);
}

.site-footer__links a:hover .material-symbols-outlined {
    transform: translateX(2px);
}

.site-footer__bottom {
    margin-top: 48px;
    padding-top: 20px;
    border-top: 1px solid rgba(196, 197, 217, 0.55);
}

.site-footer__bottom p {
    margin: 0;
    color: var(--color-muted);
    font-size: 13px;
}

@media (max-width: 1050px) {
    .site-nav {
        gap: 16px;
        margin-right: 18px;
    }

    .language-switcher {
        display: none;
    }

    .tutorial-layout {
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 20px;
    }

    .related-card {
        grid-template-columns: 108px minmax(0, 1fr);
    }
}

@media (max-width: 899px) {
    .site-header__inner {
        padding: 0 16px;
    }

    .menu-toggle {
        display: block;
        margin-left: auto;
    }

    .site-header__panel {
        position: fixed;
        top: var(--header-height);
        right: 0;
        left: 0;
        display: flex;
        max-height: calc(100vh - var(--header-height));
        flex-direction: column;
        gap: 24px;
        overflow-y: auto;
        padding: 24px;
        border-top: 1px solid var(--color-surface-high);
        background: #fff;
        box-shadow: 0 12px 24px rgba(25, 28, 29, 0.1);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-12px);
        transition: opacity 180ms ease, transform 180ms ease;
    }

    .site-header.is-menu-open .site-header__panel {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .site-header.is-menu-open .menu-toggle__line:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }

    .site-header.is-menu-open .menu-toggle__line:nth-child(2) {
        opacity: 0;
    }

    .site-header.is-menu-open .menu-toggle__line:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    .site-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        margin: 0;
    }

    .site-nav__link {
        padding: 14px 0;
        border-bottom: 1px solid var(--color-surface-high);
    }

    .site-nav__link::after {
        display: none;
    }

    .site-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .page-shell {
        padding: 88px 24px 56px;
    }

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

    .feature-card--wide {
        grid-column: span 1;
    }

    .price-card--featured,
    .price-card--featured:hover {
        transform: none;
    }

    .pricing-grid .price-card:last-child {
        grid-column: 1 / -1;
    }

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

    .support-cta {
        align-items: flex-start;
        flex-direction: column;
    }

    .tutorial-layout {
        grid-template-columns: 1fr;
    }

    .tutorial-main,
    .related-panel {
        grid-column: auto;
    }

    .site-footer__inner {
        padding: 48px 24px 24px;
    }

    .site-footer__main {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .site-footer__navigation {
        width: min(100%, 480px);
    }
}

@media (max-width: 639px) {
    .brand__name {
        font-size: 18px;
    }

    .page-shell {
        padding: 80px 16px 48px;
    }

    .home-hero {
        min-height: auto;
        padding: 52px 18px;
    }

    .home-hero h1,
    .page-intro h1,
    .help-hero h1 {
        font-size: 34px;
        line-height: 1.18;
    }

    .home-hero p,
    .page-intro p,
    .help-hero > p {
        font-size: 16px;
    }

    .home-hero .button-row,
    .support-cta .button-row {
        width: 100%;
        flex-direction: column;
    }

    .home-hero .button,
    .support-cta .button {
        width: 100%;
    }

    .content-section {
        margin-top: 48px;
    }

    .content-section > h2,
    .section-heading h2 {
        font-size: 24px;
    }

    .feature-grid,
    .pricing-grid,
    .video-grid,
    .tutorial-grid,
    .topic-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid .price-card:last-child {
        grid-column: auto;
    }

    .page-shell--help {
        gap: 48px;
    }

    .help-hero {
        padding: 48px 16px;
    }

    .section-heading {
        align-items: flex-start;
    }

    .section-heading h2 {
        text-align: left;
    }

    .search-box input {
        font-size: 15px;
    }

    .topic-card {
        min-height: 0;
    }

    .support-cta {
        padding: 24px;
    }

    .filter-row,
    .tutorial-grid {
        margin-top: 40px;
    }

    .tutorial-content header h1 {
        font-size: 24px;
    }

    .tutorial-actions {
        flex-wrap: wrap;
    }

    .tutorial-actions a {
        width: 100%;
        margin-left: 0;
    }

    .related-card {
        grid-template-columns: 112px minmax(0, 1fr);
    }

    .comparison-table {
        min-width: 760px;
    }

    .site-footer__inner {
        padding: 40px 16px 20px;
    }

    .site-footer__main {
        gap: 32px;
    }

    .site-footer__navigation {
        gap: 24px;
    }

    .site-footer__bottom {
        margin-top: 36px;
        padding-top: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}