:root {
    color-scheme: light;
    --font-ui: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
    --font-code: ui-monospace, "Cascadia Mono", "JetBrains Mono", "Consolas", monospace;
    --bg: #eef2f8;
    --bg-soft: #dfe7f3;
    --surface: #f8fbff;
    --surface-alt: #edf3fb;
    --surface-muted: #dfe8f4;
    --text: #152033;
    --text-soft: #516179;
    --text-faint: #73849d;
    --border: #c7d3e3;
    --border-strong: #8ea4c3;
    --accent: #4f7cff;
    --accent-strong: #3458d4;
    --accent-soft: #dfe8ff;
    --success: #2f855a;
    --danger: #c05621;
    --danger-strong: #c62828;
    --danger-surface: #fff0f0;
    --danger-border: #f2a0a0;
    --shadow: 0 18px 40px rgba(18, 31, 53, 0.08);
    --shadow-soft: 0 8px 20px rgba(18, 31, 53, 0.05);
    --ring: 0 0 0 4px rgba(79, 124, 255, 0.16);
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 12px;
}

.dark {
    color-scheme: dark;
    --bg: #0b1220;
    --bg-soft: #111a2d;
    --surface: #131d31;
    --surface-alt: #19253d;
    --surface-muted: #20304d;
    --text: #e7eefc;
    --text-soft: #9fb0ca;
    --text-faint: #7387a7;
    --border: #2c3e5d;
    --border-strong: #44618f;
    --accent: #7aa2ff;
    --accent-strong: #9dbbff;
    --accent-soft: #1c2c4a;
    --success: #68d391;
    --danger: #f6ad55;
    --danger-strong: #ff8c8c;
    --danger-surface: #3a1114;
    --danger-border: #8f2d35;
    --shadow: 0 20px 42px rgba(0, 0, 0, 0.32);
    --shadow-soft: 0 10px 24px rgba(0, 0, 0, 0.24);
    --ring: 0 0 0 4px rgba(122, 162, 255, 0.18);
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(92, 131, 255, 0.18), transparent 30%),
        radial-gradient(circle at top right, rgba(74, 211, 255, 0.08), transparent 28%),
        linear-gradient(180deg, var(--bg-soft) 0%, var(--bg) 22%, var(--bg) 100%);
    color: var(--text);
    font-family: var(--font-ui);
    line-height: 1.6;
    direction: rtl;
    text-align: right;
}

textarea.field,
input[type="password"],
.code-surface,
.raw-output,
.raw-card,
pre,
code {
    direction: ltr;
    text-align: left;
}

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

button,
input,
textarea,
select {
    font: inherit;
}

pre,
code {
    font-family: var(--font-code);
}

.page-width {
    width: min(1120px, calc(100vw - 32px));
    margin: 0 auto;
}

.site-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(14px);
    background: color-mix(in srgb, var(--bg) 86%, transparent);
    border-bottom: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
}

.legal-banner {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 14px 16px;
    margin-top: 12px;
    border-radius: 18px;
    border: 1px solid var(--danger-border);
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--danger-surface) 92%, white 8%),
        color-mix(in srgb, var(--danger-surface) 76%, transparent)
    );
    color: var(--danger-strong);
    box-shadow: 0 12px 28px rgba(198, 40, 40, 0.12);
    font-size: 0.93rem;
}

.legal-banner-label {
    flex: none;
    margin: 0;
    padding: 7px 11px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--danger-strong) 14%, white 86%);
    color: var(--danger-strong);
    font-size: 0.8rem;
    font-weight: 800;
    line-height: 1;
}

.dark .legal-banner-label {
    background: color-mix(in srgb, var(--danger-strong) 20%, transparent);
}

.legal-banner-copy {
    margin: 0;
    font-size: 0.93rem;
    font-weight: 700;
}

.nav-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 14px 0 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-strong) 100%);
    color: #f8fbff;
    font-weight: 800;
    letter-spacing: 0.04em;
    box-shadow: var(--shadow-soft);
}

.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.brand-copy strong {
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.brand-copy span {
    color: var(--text-soft);
    font-size: 0.9rem;
}

.nav-desktop {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.mobile-actions {
    display: none;
    align-items: center;
    gap: 10px;
}

.mobile-menu-btn {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.mobile-menu-btn:hover {
    transform: translateY(-1px);
    border-color: var(--border-strong);
    background: var(--surface-alt);
}

.mobile-menu {
    display: grid;
    gap: 12px;
    margin: 0 0 18px;
    padding: 14px;
    border-radius: var(--radius-md);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-soft);
    transform-origin: top;
    transition: opacity 180ms ease, transform 180ms ease;
}

.mobile-menu.hidden {
    display: none;
}

.mobile-menu-nav {
    display: grid;
    gap: 10px;
}

.mobile-menu-note {
    margin: 0;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    background: var(--surface-alt);
    border: 1px solid var(--border);
    color: var(--text-soft);
    font-size: 0.9rem;
}

.page-main {
    flex: 1;
    padding: 34px 0 48px;
}

.site-footer {
    border-top: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface) 86%, transparent);
}

.footer-row {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 0 34px;
    align-items: flex-start;
}

.footer-brand {
    margin: 0 0 6px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.footer-copy,
.footer-meta p {
    margin: 0;
    color: var(--text-soft);
    font-size: 0.95rem;
}

.footer-meta {
    display: grid;
    gap: 8px;
    text-align: right;
}

.footer-meta a {
    color: var(--accent);
    font-weight: 700;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface-alt);
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1;
}

.badge::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--border-strong);
}

.badge-accent {
    background: var(--accent-soft);
    border-color: color-mix(in srgb, var(--accent) 42%, var(--border));
}

.badge-accent::before {
    background: var(--accent-strong);
}

.page-head {
    display: grid;
    gap: 14px;
    margin-bottom: 26px;
}

.page-eyebrow {
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-strong);
}

.page-title {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.35rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.page-subtitle {
    margin: 0;
    max-width: 64ch;
    color: var(--text-soft);
    font-size: 1.02rem;
}

.hero-grid,
.content-grid {
    display: grid;
    gap: 22px;
}

.hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.95fr);
    align-items: stretch;
}

.hero-grid.hero-single {
    grid-template-columns: 1fr;
}

.hero-grid.hero-single .panel {
    min-height: clamp(220px, 34vh, 360px);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.content-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    align-items: start;
}

.panel,
.card,
.empty-state {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.panel {
    padding: 26px;
}

.card {
    padding: 22px;
}

.empty-state {
    padding: 34px 26px;
    text-align: center;
}

.panel-title,
.card h2,
.card h3 {
    margin: 0 0 10px;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
}

.panel-copy,
.card p,
.card li,
.empty-state p {
    color: var(--text-soft);
}

.stack {
    display: grid;
    gap: 18px;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.btn {
    appearance: none;
    border: 1px solid transparent;
    border-radius: 14px;
    padding: 12px 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    line-height: 1.2;
    min-height: 46px;
    cursor: pointer;
    transition:
        transform 160ms ease,
        background-color 160ms ease,
        color 160ms ease,
        border-color 160ms ease,
        box-shadow 160ms ease;
}

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

.btn:focus-visible,
.field:focus-visible,
.theme-toggle:focus-visible,
.mobile-menu-btn:focus-visible {
    outline: none;
    box-shadow: var(--ring);
}

.btn-primary {
    background: var(--accent);
    color: #f8fbff;
    border-color: color-mix(in srgb, var(--accent) 70%, var(--border));
}

.btn-primary:hover {
    background: var(--accent-strong);
}

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

.btn-secondary:hover {
    background: var(--bg-soft);
    border-color: var(--border-strong);
}

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

.btn-ghost:hover {
    color: var(--text);
    border-color: var(--border-strong);
    background: color-mix(in srgb, var(--surface-alt) 72%, transparent);
}

.btn-full {
    width: 100%;
}

.btn-sm {
    min-height: 38px;
    padding: 9px 13px;
    border-radius: 12px;
    font-size: 0.9rem;
}

.button-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.theme-toggle {
    min-width: 120px;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 700;
    box-shadow: var(--shadow-soft);
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    background: var(--surface-alt);
    border-color: var(--border-strong);
}

.field-group {
    display: grid;
    gap: 10px;
}

.field-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.compact-copy {
    display: grid;
    gap: 4px;
}

.label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-weight: 800;
    font-size: 0.97rem;
}

.hint,
.inline-note,
.field-note,
.tiny-note {
    color: var(--text-soft);
}

.hint,
.field-note {
    font-size: 0.92rem;
}

.tiny-note {
    font-size: 0.85rem;
}

.field {
    width: 100%;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    padding: 14px 16px;
    transition:
        border-color 160ms ease,
        box-shadow 160ms ease,
        background-color 160ms ease;
}

.field::placeholder,
textarea::placeholder {
    color: var(--text-faint);
}

.field:hover,
.language-search-trigger:hover,
.language-search-input:hover {
    border-color: var(--border-strong);
}

.field:focus,
.language-search-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--ring);
}

textarea.field {
    min-height: 370px;
    resize: vertical;
}

.textarea-shell {
    position: relative;
}

.textarea-toolbar {
    position: absolute;
    top: 14px;
    right: 14px;
    display: flex;
    gap: 8px;
    z-index: 2;
}

.textarea-toolbar .btn {
    box-shadow: none;
}

.field-footer,
.meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.security-note,
.trust-list,
.status-banner {
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--surface-alt);
}

.status-banner {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.status-banner strong {
    display: block;
    margin-bottom: 4px;
}

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

.trust-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.trust-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-weight: 800;
}

.feature-list,
.plain-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 12px;
}

.feature-list li,
.plain-list li {
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface-alt) 64%, transparent);
}

.split-row {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
    flex-wrap: wrap;
}

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

.paste-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    padding: 16px 18px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface-alt) 56%, transparent);
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.paste-row:hover {
    transform: translateY(-1px);
    border-color: var(--border-strong);
    background: color-mix(in srgb, var(--surface-alt) 90%, transparent);
}

.paste-row-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.paste-row-subtitle {
    color: var(--text-soft);
    font-size: 0.93rem;
}

.inline-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.metric {
    display: grid;
    gap: 2px;
}

.metric strong {
    font-size: 0.88rem;
    color: var(--text-faint);
    font-weight: 700;
}

.metric span {
    font-size: 1rem;
    font-weight: 800;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.section-gap {
    margin-top: 22px;
}

.code-panel {
    overflow: hidden;
}

.code-surface,
.raw-output {
    margin: 0;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--surface-alt) 65%, transparent);
    padding: 22px;
    color: var(--text);
    white-space: pre-wrap;
    overflow-x: auto;
}

.dark .code-surface,
.dark .raw-output {
    background: color-mix(in srgb, var(--surface-muted) 78%, transparent);
}

.notice-error {
    border-color: color-mix(in srgb, var(--danger) 34%, var(--border));
    background: color-mix(in srgb, var(--danger) 8%, var(--surface));
}

.notice-error p,
.notice-error strong {
    color: var(--danger);
}

.auth-card {
    max-width: 520px;
    margin: 0 auto;
}

.language-search-wrapper {
    position: relative;
}

.language-search-trigger,
.language-search-input {
    width: 100%;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    min-height: 54px;
    padding: 14px 16px;
    transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.language-search-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    cursor: pointer;
}

.language-search-chevron {
    color: var(--text-faint);
    transition: transform 160ms ease;
}

.language-search-wrapper.is-open .language-search-chevron {
    transform: rotate(180deg);
}

.language-options {
    position: absolute;
    inset: calc(100% + 8px) 0 auto;
    max-height: 280px;
    overflow-y: auto;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow);
    z-index: 30;
}

.language-options-header {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-faint);
    font-size: 0.82rem;
    font-weight: 700;
}

.language-option {
    padding: 12px 14px;
    cursor: pointer;
    transition: background-color 160ms ease, color 160ms ease;
}

.language-option + .language-option {
    border-top: 1px solid color-mix(in srgb, var(--border) 64%, transparent);
}

.language-option:hover,
.language-option.is-active {
    background: var(--accent-soft);
    color: var(--text);
}

.chat-modal {
    position: fixed;
    inset: 0;
    background: rgba(17, 12, 6, 0.62);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 60;
}

.chat-modal.hidden {
    display: none;
}

.chat-panel {
    width: min(720px, 100%);
}

.chat-history {
    min-height: 280px;
    max-height: 360px;
    overflow-y: auto;
    padding: 16px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: var(--surface-alt);
    display: grid;
    gap: 12px;
}

.chat-message-user,
.chat-message-ai {
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
}

.chat-message-user strong,
.chat-message-ai strong {
    display: inline-block;
    margin-left: 6px;
}

.loading-pulse {
    position: relative;
}

.loading-pulse::after {
    content: "";
    width: 14px;
    height: 14px;
    border-radius: 999px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    display: inline-block;
    animation: button-spin 900ms linear infinite;
}

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

.fullscreen-mode {
    position: fixed !important;
    inset: 5% !important;
    width: 90vw !important;
    height: 90vh !important;
    z-index: 80 !important;
    background: var(--surface) !important;
    box-shadow: var(--shadow) !important;
}

.blur-overlay {
    position: fixed;
    inset: 0;
    background: rgba(21, 17, 10, 0.42);
    backdrop-filter: blur(4px);
    z-index: 70;
}

.exit-fullscreen-icon {
    position: fixed;
    top: 18px;
    right: 18px;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
    cursor: pointer;
    z-index: 90;
}

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

@media (max-width: 960px) {
    .hero-grid,
    .content-grid,
    .grid-cards {
        grid-template-columns: 1fr;
    }

    .footer-row {
        flex-direction: column;
    }

    .footer-meta {
        text-align: left;
    }
}

@media (max-width: 760px) {
    .legal-banner {
        flex-direction: column;
        gap: 10px;
        padding: 12px 14px;
    }

    .nav-desktop {
        display: none;
    }

    .mobile-actions {
        display: flex;
    }

    .page-main {
        padding-top: 16px;
        padding-bottom: 28px;
    }

    .panel,
    .card,
    .empty-state {
        padding: 16px;
    }

    .field-grid,
    .stats-row {
        grid-template-columns: 1fr;
    }

    .page-width {
        width: min(1120px, calc(100vw - 20px));
    }

    .page-title {
        font-size: clamp(1.55rem, 8vw, 2rem);
        line-height: 1.15;
    }

    .button-row,
    .field-footer,
    .split-row,
    .paste-row,
    .meta-row {
        flex-direction: column;
        align-items: stretch;
    }

    .button-row {
        gap: 8px;
    }

    .btn {
        min-height: 40px;
        padding: 10px 12px;
        border-radius: 12px;
    }

    .section-gap {
        margin-top: 14px;
    }

    .page-head {
        gap: 10px;
        margin-bottom: 16px;
    }

    .hero-grid,
    .content-grid,
    .grid-cards,
    .stack {
        gap: 12px;
    }

    .badge {
        padding: 6px 10px;
        font-size: 0.8rem;
    }

    .field {
        padding: 12px 13px;
    }

    .textarea-toolbar {
        position: static;
        margin-bottom: 8px;
        justify-content: flex-end;
    }

    textarea.field {
        min-height: 250px;
    }
}

@media (max-width: 460px) {
    .page-width {
        width: calc(100vw - 14px);
    }

    .panel,
    .card,
    .empty-state {
        padding: 14px;
        border-radius: 16px;
    }

    .page-title {
        font-size: clamp(1.35rem, 7vw, 1.7rem);
    }

    .page-subtitle,
    .panel-copy,
    .hint,
    .field-note {
        font-size: 0.9rem;
    }

    .btn {
        min-height: 38px;
        padding: 9px 11px;
    }
}