/* Qual Meu IP Online - Dark technical dashboard */

/* === Base === */
:root {
    --color-bg: #070b14;
    --color-surface: #101722;
    --color-surface-soft: #141d2b;
    --color-border: rgba(148, 163, 184, 0.16);
    --color-text: #f8fafc;
    --color-muted: #9caec6;
    --color-text-muted: #9caec6;
    --color-primary: #18c7e8;
    --color-primary-strong: #3b82f6;
    --color-primary-dark: #0ea5c9;
    --color-success: #22c55e;
    --color-warning: #fbbf24;
    --color-info-bg: rgba(24, 199, 232, 0.08);
    --color-info-border: rgba(24, 199, 232, 0.25);
    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "Consolas", "Monaco", "Courier New", monospace;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius: var(--radius-sm);
    --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.22);
    --shadow: var(--shadow-card);
    --container-max: 1120px;
    --header-height: 68px;
    --scrollbar-width: 5px;
    --scrollbar-thumb: rgba(24, 199, 232, 0.22);
    --scrollbar-thumb-hover: rgba(24, 199, 232, 0.4);
    --scrollbar-color: rgba(24, 199, 232, 0.35) transparent;
}

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-color);
}

html::-webkit-scrollbar {
    width: var(--scrollbar-width);
}

html::-webkit-scrollbar-track {
    background: transparent;
}

html::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 999px;
}

html::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(24, 199, 232, 0.12), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(59, 130, 246, 0.08), transparent),
        var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a:hover {
    color: #5ee0f7;
    text-decoration: none;
}

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

/* === Layout === */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: 1rem;
}

.main {
    flex: 1;
    padding-block: 1.5rem 2.5rem;
}

.section {
    padding-block: 2rem;
}

.section__header {
    margin-bottom: 1.25rem;
}

.section__title {
    margin: 0 0 0.35rem;
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 700;
}

.section__subtitle {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.9375rem;
    max-width: 42rem;
}

.section__eyebrow {
    display: inline-block;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
}

/* === Toast === */
.app-toast {
    position: fixed;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    z-index: 1000;
    padding: 0.75rem 1.25rem;
    background: var(--color-surface-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--shadow-card);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.app-toast.is-visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.app-toast--success {
    border-color: rgba(34, 197, 94, 0.4);
}

.app-toast--error {
    border-color: rgba(251, 191, 36, 0.4);
}

/* === Header === */
.site-header {
    background: rgba(16, 23, 34, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 200;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
    gap: 1rem;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--color-text);
    text-decoration: none;
    min-width: 0;
}

.site-logo:hover {
    color: var(--color-primary);
}

.site-logo__icon {
    color: var(--color-primary);
    flex-shrink: 0;
}

.site-logo__text-wrap {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.site-logo__text {
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-logo__tagline {
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--color-muted);
    line-height: 1.2;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: var(--color-surface-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-shrink: 0;
}

.nav-toggle__bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
}

.site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
}

.site-nav.is-open {
    display: block;
}

.site-nav__list {
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
}

.site-nav__item {
    position: relative;
}

.site-nav__link,
.site-nav__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.75rem 1rem;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
}

.site-nav__link:hover,
.site-nav__trigger:hover {
    background: var(--color-surface-soft);
    color: var(--color-primary);
}

.site-nav__dropdown-link--external::after {
    content: none;
}

.site-nav__dropdown-link:not(.site-nav__dropdown-link--soon) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.site-nav__dropdown-link:not(.site-nav__dropdown-link--soon)::after {
    content: ">";
    flex-shrink: 0;
    font-size: 1rem;
    line-height: 1;
    color: var(--color-muted);
    opacity: 0.45;
    transition: opacity 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.site-nav__dropdown-link:not(.site-nav__dropdown-link--soon):hover::after {
    color: var(--color-primary);
    opacity: 0.85;
    transform: translateX(2px);
}

.site-nav__dropdown {
    display: none;
    list-style: none;
    margin: 0;
    padding: 0;
    background: var(--color-surface-soft);
    border-top: 1px solid var(--color-border);
}

.site-nav__dropdown.is-open {
    display: block;
}

.site-nav__dropdown-link {
    display: block;
    padding: 0.625rem 1rem 0.625rem 1.5rem;
    color: var(--color-muted);
    font-size: 0.875rem;
    text-decoration: none;
}

.site-nav__dropdown-link:hover {
    color: var(--color-primary);
    background: rgba(24, 199, 232, 0.06);
}

.site-nav__dropdown-link--soon {
    opacity: 0.55;
    cursor: default;
    pointer-events: none;
}

.site-nav__dropdown-badge {
    float: right;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-warning);
    text-transform: uppercase;
}

@media (min-width: 900px) {
    .site-header__inner {
        position: relative;
    }

    .nav-toggle {
        display: none;
    }

    .site-nav {
        display: block;
        position: static;
        border: none;
        box-shadow: none;
        background: transparent;
        max-height: none;
        overflow: visible;
    }

    .site-nav__list {
        display: flex;
        align-items: center;
        gap: 0.125rem;
        padding: 0;
    }

    .site-nav__link,
    .site-nav__trigger {
        width: auto;
        padding: 0.5rem 0.75rem;
        border-radius: var(--radius-sm);
    }

    .site-nav__item--dropdown::before {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        height: 0.5rem;
        z-index: 299;
    }

    .site-nav__dropdown {
        position: absolute;
        top: calc(100% + 0.35rem);
        left: 0;
        min-width: 240px;
        max-height: min(70vh, 420px);
        overflow-y: auto;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-sm);
        box-shadow: var(--shadow-card);
        z-index: 300;
        scrollbar-width: thin;
        scrollbar-color: var(--scrollbar-color);
    }

    .site-nav__dropdown::-webkit-scrollbar {
        width: var(--scrollbar-width);
    }

    .site-nav__dropdown::-webkit-scrollbar-track {
        background: transparent;
    }

    .site-nav__dropdown::-webkit-scrollbar-thumb {
        background: var(--scrollbar-thumb);
        border-radius: 999px;
    }

    .site-nav__dropdown::-webkit-scrollbar-thumb:hover {
        background: var(--scrollbar-thumb-hover);
    }

    #nav-todevs-dropdown {
        left: auto;
        right: 0;
    }

    .site-nav__item--dropdown:hover .site-nav__dropdown,
    .site-nav__item--dropdown.is-open .site-nav__dropdown {
        display: block;
    }
}

/* === Hero IP Panel === */
.hero-panel {
    padding-block: 0.5rem 1.5rem;
    text-align: center;
}

.hero-panel__title {
    margin: 0 0 0.5rem;
    font-size: clamp(1.75rem, 5vw, 2.35rem);
    line-height: 1.15;
    font-weight: 800;
}

.hero-panel__subtitle {
    margin: 0 auto 1.5rem;
    max-width: 38rem;
    color: var(--color-muted);
    font-size: 1rem;
}

.hero-panel__card {
    max-width: 640px;
    margin-inline: auto;
    padding: 1.75rem 1.5rem;
    background: linear-gradient(145deg, var(--color-surface-soft) 0%, var(--color-surface) 100%);
    border: 1px solid rgba(24, 199, 232, 0.28);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.hero-panel__label {
    margin: 0 0 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
}

.hero-panel__ip {
    margin: 0 0 0.75rem;
    font-family: var(--font-mono);
    font-size: clamp(1.75rem, 6vw, 2.75rem);
    font-weight: 700;
    color: var(--color-primary);
    word-break: break-all;
    line-height: 1.15;
    transition: filter 0.2s;
}

.hero-panel__ip.is-hidden {
    filter: blur(8px);
    user-select: none;
}

.hero-panel__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-muted);
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid var(--color-border);
    border-radius: 999px;
}

.badge--primary {
    color: var(--color-primary);
    border-color: rgba(24, 199, 232, 0.3);
    background: rgba(24, 199, 232, 0.08);
}

.hero-panel__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    justify-content: center;
}

.hero-panel__notice {
    max-width: 640px;
    margin: 1rem auto 0;
}

/* === Notice card === */
.notice-card {
    display: flex;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    text-align: left;
    line-height: 1.5;
}

.notice-card__icon {
    flex-shrink: 0;
    width: 1.125rem;
    height: 1.125rem;
    margin-top: 0.1rem;
    color: var(--color-primary);
}

.notice-card__text {
    margin: 0;
    color: var(--color-muted);
}

.notice-card--info {
    background: var(--color-info-bg);
    border: 1px solid var(--color-info-border);
}

.notice-card--warning {
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.25);
}

/* === Connection summary === */
.summary-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 540px) {
    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .summary-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.summary-card {
    padding: 1.125rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
}

.summary-card__icon {
    width: 2rem;
    height: 2rem;
    margin-bottom: 0.75rem;
    padding: 0.4rem;
    color: var(--color-primary);
    background: rgba(24, 199, 232, 0.1);
    border-radius: var(--radius-sm);
}

.summary-card__label {
    margin: 0 0 0.35rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
}

.summary-card__value {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    word-break: break-word;
}

.summary-card__value--mono {
    font-family: var(--font-mono);
    font-weight: 500;
}

.summary-card__hint {
    margin: 0.35rem 0 0;
    font-size: 0.75rem;
    color: var(--color-muted);
}

/* === Technical details === */
.tech-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.tech-panel__blocks {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

@media (min-width: 768px) {
    .tech-panel__blocks {
        grid-template-columns: repeat(3, 1fr);
    }
}

.tech-block {
    padding: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
    .tech-block {
        border-bottom: none;
        border-right: 1px solid var(--color-border);
    }

    .tech-block:last-child {
        border-right: none;
    }
}

.tech-block:last-child {
    border-bottom: none;
}

.tech-block__title {
    margin: 0 0 1rem;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-primary);
}

.tech-block__list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.tech-block__item {
    display: grid;
    gap: 0.15rem;
}

.tech-block__label {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-muted);
}

.tech-block__value {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    word-break: break-word;
}

.tech-block__value--mono {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
}

.tech-block__value--live-time {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.04em;
}

.tech-panel__ua {
    border-top: 1px solid var(--color-border);
    padding: 1rem 1.25rem;
}

.tech-panel__ua-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.tech-panel__ua-title {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
}

.tech-panel__ua-details summary {
    cursor: pointer;
    font-size: 0.8125rem;
    color: var(--color-primary);
    font-weight: 500;
    list-style: none;
}

.tech-panel__ua-details summary::-webkit-details-marker {
    display: none;
}

.tech-panel__ua-text {
    margin: 0.75rem 0 0;
    padding: 0.875rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.55;
    color: var(--color-muted);
    background: var(--color-surface-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 12rem;
    overflow-y: auto;
}

/* === Cards / info-card (shared) === */
.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 540px) {
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.info-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: 1rem 1.125rem;
}

.info-card--full {
    grid-column: 1 / -1;
}

.info-card--center {
    grid-column: 1 / -1;
    justify-self: center;
    width: 100%;
    max-width: 20rem;
}

.info-card__label {
    margin: 0 0 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-muted);
}

.info-card__value {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    word-break: break-word;
}

.info-card__value--mono {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.9375rem;
}

.info-card__hint {
    margin: 0.35rem 0 0;
    font-size: 0.8125rem;
    color: var(--color-muted);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.625rem 1.125rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--radius-sm);
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-strong) 100%);
    color: #041018;
    border-color: transparent;
}

.btn--primary:hover {
    filter: brightness(1.08);
    color: #041018;
}

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

.btn--secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn--ghost {
    background: rgba(148, 163, 184, 0.08);
    color: var(--color-muted);
    border-color: var(--color-border);
}

.btn--ghost:hover {
    color: var(--color-text);
    border-color: var(--color-muted);
}

.btn--sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8125rem;
}

.copy-btn:disabled {
    opacity: 0.7;
    cursor: default;
}

/* === Tools grid === */
.tools-section {
    padding-block: 2rem 1rem;
}

.tools-section--external {
    background: rgba(20, 29, 43, 0.5);
    border-block: 1px solid var(--color-border);
    margin-block: 0.5rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 540px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .tools-grid {
        grid-template-columns: repeat(4, 1fr);
    }

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

.tool-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    height: 100%;
    transition: border-color 0.15s, transform 0.15s;
}

.tool-card:hover {
    border-color: rgba(24, 199, 232, 0.35);
}

.tool-card__link,
.tool-card__body {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.25rem;
}

.tool-card__link {
    color: var(--color-text);
    text-decoration: none;
}

.tool-card__link:hover {
    text-decoration: none;
}

.tool-card__icon {
    width: 2.25rem;
    height: 2.25rem;
    margin-bottom: 0.75rem;
    padding: 0.45rem;
    color: var(--color-primary);
    background: rgba(24, 199, 232, 0.1);
    border-radius: var(--radius-sm);
}

.tool-card__category {
    margin: 0 0 0.35rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
}

.tool-card__title {
    margin: 0 0 0.5rem;
    font-size: 1rem;
    font-weight: 700;
}

.tool-card__description {
    margin: 0;
    flex: 1;
    font-size: 0.8125rem;
    color: var(--color-muted);
    line-height: 1.5;
}

.tool-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tool-card__action {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
}

.tool-card--soon {
    opacity: 0.75;
}

.tool-card--soon:hover {
    border-color: var(--color-border);
    transform: none;
}

.tool-card--external .tool-card__category {
    color: var(--color-primary-strong);
}

.tool-card__badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-warning);
    background: rgba(251, 191, 36, 0.12);
    border-radius: 999px;
}

/* === Use cases === */
.use-cases {
    padding-block: 2rem;
}

.use-cases__list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

@media (min-width: 768px) {
    .use-cases__list {
        grid-template-columns: repeat(2, 1fr);
    }
}

.use-cases__item {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 1.125rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--color-muted);
}

.use-cases__bullet {
    flex-shrink: 0;
    width: 0.5rem;
    height: 0.5rem;
    margin-top: 0.45rem;
    background: var(--color-primary);
    border-radius: 50%;
}

/* === SEO blocks === */
.seo-blocks-grid {
    display: grid;
    gap: 1rem;
}

@media (min-width: 768px) {
    .seo-blocks-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.seo-block {
    padding-block: 0;
}

.seo-block__inner {
    height: 100%;
    padding: 1.25rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.seo-block__title {
    margin: 0 0 0.75rem;
    font-size: 1.05rem;
    text-align: left;
}

.seo-block__content {
    color: var(--color-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

.seo-block__content p {
    margin: 0 0 0.625rem;
}

.seo-block__content p:last-child {
    margin-bottom: 0;
}

.seo-block__content code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    padding: 0.1em 0.35em;
    background: var(--color-surface-soft);
    border-radius: 4px;
    color: var(--color-primary);
}

.seo-block__cta {
    display: inline-block;
    margin-top: 0.875rem;
}

/* === FAQ === */
.faq-section {
    padding-block: 2rem 1rem;
}

.faq-section__title {
    margin: 0 0 1.25rem;
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    text-align: center;
}

.faq-list {
    max-width: 720px;
    margin-inline: auto;
    display: grid;
    gap: 0.625rem;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-item__question {
    padding: 1rem 1.125rem;
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    list-style: none;
}

.faq-item__question::-webkit-details-marker {
    display: none;
}

.faq-item__question::after {
    content: "+";
    float: right;
    color: var(--color-primary);
    font-weight: 700;
}

.faq-item[open] .faq-item__question::after {
    content: "−";
}

.faq-item__answer {
    padding: 0 1.125rem 1rem;
    color: var(--color-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

.faq-item__answer p {
    margin: 0;
}

/* === Alert box === */
.alert-box {
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    max-width: 40rem;
    margin: 1rem auto 0;
    text-align: left;
}

.alert-box__title {
    margin: 0 0 0.35rem;
    font-weight: 700;
    font-size: 0.875rem;
}

.alert-box__message {
    margin: 0;
    font-size: 0.875rem;
}

.alert-box--info {
    background: var(--color-info-bg);
    border: 1px solid var(--color-info-border);
}

.alert-box--warning {
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.25);
}

.alert-box--success {
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.25);
}

/* === Ad slots === */
.ad-slot[hidden] {
    display: none !important;
}

.ad-slot {
    width: 100%;
    max-width: var(--container-max);
    margin: 24px auto;
    padding-inline: 1rem;
}

.ad-slot--loaded {
    display: block;
}

.ad-slot--empty,
.ad-slot--pending {
    display: none;
    margin: 0;
    padding: 0;
    min-height: 0;
}

.ad-slot__label {
    margin: 0 0 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-muted);
    text-align: center;
}

.ad-slot--loaded .ad-slot__content,
.ad-slot--banner .ad-banner {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.ad-slot--debug {
    border: 1px dashed var(--color-border);
    padding: 8px;
    font-size: 0.75rem;
    color: var(--color-muted);
    text-align: center;
}

.ad-banner {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    color: var(--color-text);
    text-decoration: none;
}

.ad-banner:hover {
    background: var(--color-surface-soft);
}

.ad-banner__title {
    font-weight: 700;
}

.ad-banner__description {
    font-size: 0.875rem;
    color: var(--color-muted);
}

.ad-banner__cta {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* === Footer === */
.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding-block: 2.5rem 1.5rem;
    margin-top: auto;
}

.site-footer__grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 640px) {
    .site-footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .site-footer__grid {
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
    }
}

.site-footer__title {
    margin: 0 0 0.5rem;
    font-weight: 700;
    font-size: 1rem;
}

.site-footer__note {
    margin: 0;
    font-size: 0.8125rem;
    color: var(--color-muted);
    line-height: 1.55;
}

.site-footer__partners {
    margin-top: 1.25rem;
    padding: 1rem 1.125rem;
    background: var(--color-surface-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.site-footer__partners-title {
    margin: 0 0 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-primary);
}

.site-footer__partners-link {
    font-size: 0.8125rem;
    color: var(--color-muted);
    line-height: 1.5;
}

.site-footer__partners-link:hover {
    color: var(--color-primary);
}

.site-footer__nav-title {
    margin: 0 0 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-primary);
}

.site-footer__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.site-footer__list a {
    font-size: 0.8125rem;
    color: var(--color-muted);
}

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

.site-footer__copy {
    margin: 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.75rem;
    color: var(--color-muted);
    text-align: center;
}

/* === Tool pages === */
.tool-page {
    padding-block: 0.5rem 2rem;
}

.page-header {
    margin: 1rem 0 1.5rem;
    text-align: center;
}

.page-header__title {
    margin: 0 0 0.5rem;
    font-size: clamp(1.5rem, 4vw, 2rem);
}

.page-header__subtitle {
    margin: 0 auto;
    color: var(--color-muted);
    max-width: 36rem;
}

.breadcrumb__list {
    list-style: none;
    margin: 0 0 0.5rem;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    font-size: 0.8125rem;
    color: var(--color-muted);
}

.breadcrumb__item:not(:last-child)::after {
    content: "/";
    margin-left: 0.35rem;
    opacity: 0.5;
}

.breadcrumb__item a {
    color: var(--color-muted);
}

.tool-form {
    max-width: 32rem;
    margin: 0 auto 2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: 1.5rem;
}

.tool-form__label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.tool-form__input {
    width: 100%;
    padding: 0.75rem 0.875rem;
    font-size: 1rem;
    font-family: var(--font-mono);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface-soft);
    color: var(--color-text);
}

.tool-form__input:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
    border-color: var(--color-primary);
}

.tool-form__hint {
    margin: 0.35rem 0 0;
    font-size: 0.8125rem;
    color: var(--color-muted);
}

.tool-form__field {
    margin-bottom: 1rem;
}

.tool-form .alert-box {
    margin: 0 0 1rem;
    max-width: none;
}

.tool-form__submit {
    width: 100%;
}

.tool-results__title {
    margin: 0 0 1rem;
    font-size: 1.2rem;
    text-align: center;
}

.tool-page__back {
    margin: 2rem 0 0;
    text-align: center;
    font-size: 0.875rem;
}

/* DNS / WHOIS */
.dns-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.dns-table th,
.dns-table td {
    padding: 0.625rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.dns-table th {
    background: var(--color-surface-soft);
    font-size: 0.75rem;
    text-transform: uppercase;
}

.dns-table td {
    font-family: var(--font-mono);
    word-break: break-all;
}

.whois-results__pre {
    margin: 0;
    padding: 1rem;
    background: var(--color-surface-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 28rem;
    overflow-y: auto;
    color: var(--color-muted);
}

.whois-results__source {
    margin: 0.75rem 0 0;
    font-size: 0.75rem;
    color: var(--color-muted);
    text-align: right;
}

/* === Article pages === */
.article-content {
    max-width: 42rem;
    margin: 0 auto 2rem;
    color: var(--color-muted);
    line-height: 1.7;
}

.article-content__heading {
    color: var(--color-text);
}

.article-content code {
    font-family: var(--font-mono);
    background: var(--color-surface-soft);
    padding: 0.1em 0.35em;
    border-radius: 4px;
    color: var(--color-primary);
}

.page-error {
    text-align: center;
    padding-block: 3rem;
}

.page-error__text {
    color: var(--color-muted);
}

/* === Responsive === */
@media (max-width: 899px) {
    .site-logo__tagline {
        display: none;
    }
}

@media (max-width: 539px) {
    .hero-panel__card {
        padding: 1.25rem 1rem;
    }

    .hero-panel__actions .btn {
        flex: 1 1 100%;
    }
}