*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root,
[data-theme="light"] {
    --bg: #f6f7fb;
    --bg-2: #eef0f8;
    --surface: #ffffff;
    --surface-2: #fbfbfe;
    --border: #e6e8f0;
    --text: #1a1a2e;
    --text-secondary: #6b7280;
    --primary: #6366f1;
    --primary-2: #a855f7;
    --primary-hover: #4f46e5;
    --primary-soft: #eef0ff;
    --danger: #ef4444;
    --success: #22c55e;
    --success-bg: #f0fdf4;
    --success-bd: #bbf7d0;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 1px 3px rgba(16, 24, 40, .06);
    --shadow: 0 4px 16px rgba(79, 70, 229, .08), 0 1px 3px rgba(16, 24, 40, .06);
    --shadow-lg: 0 18px 40px rgba(79, 70, 229, .16);
    --grad: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --header-bg: rgba(255, 255, 255, .72);
    --orb-1: #818cf8;
    --orb-2: #c084fc;
    --marquee: #6366f1, #a855f7, #22d3ee, #a855f7, #6366f1;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

[data-theme="dark"] {
    --bg: #0f1117;
    --bg-2: #161922;
    --surface: #1a1d27;
    --surface-2: #222632;
    --border: #2c3140;
    --text: #e8eaf2;
    --text-secondary: #9aa3b5;
    --primary: #818cf8;
    --primary-2: #c084fc;
    --primary-hover: #a5b4fc;
    --primary-soft: rgba(99, 102, 241, .18);
    --danger: #f87171;
    --success: #4ade80;
    --success-bg: rgba(34, 197, 94, .12);
    --success-bd: rgba(74, 222, 128, .35);
    --warning: #fbbf24;
    --warning-bg: rgba(245, 158, 11, .12);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .25);
    --shadow: 0 8px 24px rgba(0, 0, 0, .35);
    --shadow-lg: 0 18px 40px rgba(0, 0, 0, .45);
    --header-bg: rgba(15, 17, 23, .78);
    --orb-1: #4338ca;
    --orb-2: #7e22ce;
    --marquee: #818cf8, #c084fc, #22d3ee, #c084fc, #818cf8;
}

@property --marquee-angle {
    syntax: "<angle>";
    initial-value: 0deg;
    inherits: false;
}

html {
    height: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    height: 100%;
    min-height: 100dvh;
    max-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Ambient background */
.bg-orbs {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .35;
}

.orb-1 {
    width: 420px;
    height: 420px;
    background: var(--orb-1);
    top: -120px;
    left: -80px;
    animation: float1 16s ease-in-out infinite;
}

.orb-2 {
    width: 380px;
    height: 380px;
    background: var(--orb-2);
    bottom: -120px;
    right: -60px;
    animation: float2 20s ease-in-out infinite;
}

@keyframes float1 {
    50% {
        transform: translate(60px, 50px) scale(1.1);
    }
}

@keyframes float2 {
    50% {
        transform: translate(-50px, -40px) scale(1.08);
    }
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 24px;
    height: 62px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
}

.brand-mark {
    display: grid;
    place-items: center;
    filter: drop-shadow(0 6px 14px rgba(99, 102, 241, .35));
    animation: pop .55s cubic-bezier(.2, .8, .2, 1);
}

@keyframes pop {
    from {
        opacity: 0;
        transform: scale(.6) rotate(-12deg);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.brand-mark:hover {
    transform: scale(1.05) rotate(-3deg);
    transition: transform .35s cubic-bezier(.2, .8, .2, 1);
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-name {
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -.5px;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.brand-sub {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: .4px;
}

.tabs {
    display: flex;
    gap: 6px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 4px;
    padding-left: 10px;
    border-left: 1px solid var(--border);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font);
    transition: color .2s, border-color .2s, background .2s, transform .15s;
}

.icon-btn:hover {
    color: var(--primary);
    border-color: color-mix(in srgb, var(--primary) 40%, var(--border));
    transform: translateY(-1px);
}

.icon-btn .icon-sun,
.icon-btn .icon-moon,
.icon-btn .icon-system {
    display: none;
}

[data-theme-pref="system"] .icon-btn .icon-system,
html:not([data-theme-pref]) .icon-btn .icon-system {
    display: block;
}

[data-theme-pref="light"] .icon-btn .icon-sun {
    display: block;
}

[data-theme-pref="dark"] .icon-btn .icon-moon {
    display: block;
}

.lang-code {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .4px;
}

.tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 15px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font);
    transition: color .2s, background .2s, transform .15s;
}

.tab-btn svg {
    opacity: .8;
}

.tab-btn:hover {
    color: var(--text);
    background: rgba(99, 102, 241, .07);
}

.tab-btn:active {
    transform: scale(.96);
}

.tab-btn.active {
    color: #fff;
    background: var(--grad);
    box-shadow: 0 6px 16px rgba(99, 102, 241, .35);
}

.tab-btn.active svg {
    opacity: 1;
}

/* Layout */
.main {
    flex: 1;
    min-height: 0;
    width: 100%;
    max-width: 880px;
    margin: 0 auto;
    padding: 18px 24px 12px;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    display: flex;
    flex-direction: column;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: panelIn .45s cubic-bezier(.2, .8, .2, 1);
}

#panel-extract.tab-panel.active {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    justify-content: safe center;
}

@keyframes panelIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

/* Hero */
.hero {
    text-align: center;
    padding: 0px 0 24px;
    flex-shrink: 0;
    animation: panelIn .5s .05s both;
}

.hero-title {
    font-size: clamp(24px, 3.4vw, 30px);
    font-weight: 800;
    letter-spacing: -.6px;
    line-height: 1.28;
}

.grad {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.hero-desc {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 14.5px;
    line-height: 1.6;
}

/* Cards — marquee border */
.card {
    position: relative;
    isolation: isolate;
    background: var(--surface);
    border: none;
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow .25s;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1.5px;
    background: conic-gradient(from var(--marquee-angle), var(--marquee));
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    animation: marquee-spin 3.2s linear infinite;
    pointer-events: none;
    z-index: -1;
}

.card:last-child {
    margin-bottom: 0;
}

.card:hover {
    box-shadow: var(--shadow);
}

.card:hover::before {
    animation-duration: 1.8s;
}

.card-feature {
    flex: 0 1 auto;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.card-feature::before {
    padding: 2px;
    animation-duration: 2.4s;
}

@keyframes marquee-spin {
    to {
        --marquee-angle: 360deg;
    }
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 2px;
}

.card-title.d-flex {
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

/* About */
#panel-about.tab-panel.active {
    display: block;
}

.about-hero {
    text-align: center;
    padding: 8px 0 20px;
}

.about-title {
    font-size: clamp(22px, 3vw, 28px);
    font-weight: 800;
    letter-spacing: -.5px;
    line-height: 1.3;
}

.about-lead {
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 14.5px;
    line-height: 1.6;
}

.about-list {
    margin: 0;
    padding-left: 1.15em;
    color: var(--text);
    font-size: 14px;
    line-height: 1.75;
}

.about-list li+li {
    margin-top: 6px;
}

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

.about-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    color: var(--text);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 600;
    transition: border-color .18s, background .18s, color .18s;
}

.about-link:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
}

.about-license-note {
    margin: 0 0 12px;
    font-size: 13.5px;
    line-height: 1.65;
    color: var(--text-secondary);
}

/* Forms */
.form-group {
    margin-bottom: 12px;
}

.form-group:last-child {
    margin-bottom: 0;
}

label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 7px;
    color: var(--text);
}

label .hint {
    font-weight: 400;
    color: var(--text-secondary);
    font-size: 12px;
}

.form-group-inline {
    margin-bottom: 14px;
}

.card-corner-switch {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.switch-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    cursor: pointer;
    user-select: none;
    color: var(--text-secondary);
}

.switch-label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .1px;
}

.switch {
    position: relative;
    display: inline-flex;
    width: 40px;
    height: 22px;
    flex-shrink: 0;
}

.switch input {
    position: absolute;
    inset: 0;
    opacity: 0;
    margin: 0;
    cursor: pointer;
    z-index: 1;
}

.switch-track {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: color-mix(in srgb, var(--text-secondary) 28%, var(--surface-2));
    border: 1px solid var(--border);
    transition: background .2s, border-color .2s, box-shadow .2s;
}

.switch-track::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--surface);
    box-shadow: 0 1px 3px rgba(16, 24, 40, .18);
    transition: transform .2s cubic-bezier(.2, .8, .2, 1);
}

.switch input:checked+.switch-track {
    background: var(--grad);
    border-color: transparent;
}

.switch input:checked+.switch-track::after {
    transform: translateX(18px);
}

.switch input:focus-visible+.switch-track {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, .22);
}

.switch-option:hover .switch-label {
    color: var(--text);
}

.input-wrap {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    pointer-events: none;
}

input[type="text"],
input[type="password"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 11px 13px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: var(--font);
    color: var(--text);
    background: var(--surface-2);
    transition: border-color .18s, box-shadow .18s, background .18s;
}

.input-wrap input {
    padding-left: 38px;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--surface);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, .15);
}

textarea {
    resize: vertical;
    min-height: 64px;
    max-height: 160px;
    line-height: 1.55;
}

::placeholder {
    color: #aab0bd;
}

select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 34px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 620px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Cascader */
.cascader {
    position: relative;
}

.cascader-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 11px 13px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    color: var(--text);
    font-size: 14px;
    font-family: var(--font);
    cursor: pointer;
    text-align: left;
    transition: border-color .18s, box-shadow .18s, background .18s;
}

.cascader-trigger:hover,
.cascader.open .cascader-trigger {
    border-color: var(--primary);
    background: var(--surface);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, .15);
}

.cascader-placeholder {
    color: #aab0bd;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cascader-placeholder.has-value {
    color: var(--text);
    font-weight: 500;
}

.cascader-arrow {
    color: #6b7280;
    flex-shrink: 0;
    transition: transform .18s;
}

.cascader.open .cascader-arrow {
    transform: rotate(180deg);
}

.cascader-panel {
    position: absolute;
    z-index: 40;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 16px 40px rgba(15, 23, 42, .14);
    overflow: hidden;
}

.cascader-search {
    width: 100%;
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    background: var(--surface);
    padding: 12px 14px;
    box-shadow: none !important;
}

.cascader-search:focus {
    outline: none;
    border-color: var(--border);
    box-shadow: none !important;
}

.cascader-menus {
    display: flex;
    align-items: stretch;
    overflow-x: auto;
    max-width: 100%;
    min-height: 200px;
    max-height: 220px;
    background: var(--surface-2);
}

.cascader-menu {
    flex: 0 0 200px;
    width: 200px;
    overflow-y: auto;
    border-right: 1px solid var(--border);
    background: var(--surface);
    padding: 6px;
}

.cascader-menu:last-child {
    border-right: 0;
}

.cascader-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--text);
    font-size: 13.5px;
    font-family: var(--font);
    text-align: left;
    cursor: pointer;
    transition: background .12s;
}

.cascader-item:hover {
    background: var(--primary-soft);
}

.cascader-item.active {
    background: rgba(99, 102, 241, .1);
    color: var(--primary);
    font-weight: 600;
}

.cascader-item-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cascader-item-arrow {
    color: #9ca3af;
    flex-shrink: 0;
}

.cascader-item.loading .cascader-item-arrow {
    opacity: .5;
}

.cascader-empty {
    padding: 28px 16px;
    color: var(--text-secondary);
    font-size: 13px;
    text-align: center;
}

.cascader-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 200px;
    min-width: 200px;
    color: var(--text-secondary);
    font-size: 13px;
}

.cascader-loading .spinner {
    width: 18px;
    height: 18px;
    margin: 0;
    border-color: rgba(99, 102, 241, .25);
    border-right-color: var(--primary);
}

.cascader-item .spinner {
    width: 14px;
    height: 14px;
    margin: 0;
    border-color: rgba(99, 102, 241, .25);
    border-right-color: var(--primary);
}

.cascader-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

.cascader-footer-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.cascader-hint {
    font-size: 12px;
    color: var(--text-secondary);
}

@media (max-width: 620px) {
    .cascader-menu {
        flex-basis: 160px;
        width: 160px;
    }

    .cascader-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .cascader-footer-actions {
        justify-content: flex-end;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    transition: transform .15s, box-shadow .2s, background .2s, color .2s, border-color .2s;
}

.btn svg {
    flex-shrink: 0;
}

.btn:active {
    transform: translateY(1px) scale(.99);
}

.btn-primary {
    background: var(--grad);
    color: #fff;
    box-shadow: 0 8px 20px rgba(99, 102, 241, .32);
}

.btn-primary:hover {
    box-shadow: 0 10px 26px rgba(99, 102, 241, .45);
    transform: translateY(-1px);
}

.btn-primary::after {
    content: "";
    position: absolute;
    top: 0;
    left: -120%;
    width: 60%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .45), transparent);
    transform: skewX(-20deg);
    transition: left .6s;
}

.btn-primary:hover::after {
    left: 130%;
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--primary);
    border-color: transparent;
    padding: 8px 10px;
}

.btn-ghost:hover {
    background: var(--primary-soft);
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
}

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Status */
.status {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 500;
    display: none;
}

.status.show {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    animation: statusIn .35s cubic-bezier(.2, .8, .2, 1);
}

.status.inline {
    margin-top: 0;
    padding: 6px 0;
}

.status.inline.show {
    animation: none;
}

@keyframes statusIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.status-success {
    background: var(--success-bg);
    border: 1px solid var(--success-bd);
    color: var(--success);
}

.status-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid color-mix(in srgb, var(--primary) 45%, transparent);
}

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

.status-error {
    background: color-mix(in srgb, var(--danger) 12%, var(--surface));
    border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--border));
    color: var(--danger);
}

.status-warning {
    background: var(--warning-bg);
    border: 1px solid color-mix(in srgb, var(--warning) 40%, var(--border));
    color: var(--warning);
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    flex-shrink: 0;
    margin-top: 2px;
}

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

/* Preview */
.preview-box {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 18px;
    font-size: 14px;
    line-height: 1.7;
    max-height: min(360px, 40vh);
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
    animation: statusIn .4s;
}

.preview-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
    align-items: center;
}

.preview-actions .btn-primary {
    margin-left: auto;
}

.preview-box h1 {
    font-size: 22px;
    margin: 16px 0 8px;
}

.preview-box h2 {
    font-size: 18px;
    margin: 14px 0 6px;
}

.preview-box h3 {
    font-size: 16px;
    margin: 12px 0 4px;
}

.preview-box ul,
.preview-box ol {
    margin: 8px 0;
    padding-left: 24px;
}

.preview-box blockquote {
    border-left: 3px solid var(--primary);
    padding-left: 12px;
    color: var(--text-secondary);
    margin: 8px 0;
    background: rgba(99, 102, 241, .04);
    padding: 6px 12px;
    border-radius: 0 8px 8px 0;
}

.preview-box code {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 5px;
    font-size: 13px;
    font-family: 'SF Mono', Menlo, monospace;
    color: #c026d3;
}

.preview-box pre {
    background: #1e1e2e;
    color: #e4e4ef;
    border: none;
    padding: 14px 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 8px 0;
}

.preview-box .preview-media {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 12px 0;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.tag-green {
    background: var(--success-bg);
    color: var(--success);
}

.tag-red {
    background: color-mix(in srgb, var(--danger) 14%, var(--surface));
    color: var(--danger);
}

.link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

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

/* Footer */
.footer {
    flex-shrink: 0;
    text-align: center;
    padding: 10px 16px 14px;
    color: var(--text-secondary);
    font-size: 12.5px;
    border-top: 1px solid transparent;
}

.footer-brand {
    font-weight: 800;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Loading overlay */
.loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: color-mix(in srgb, var(--bg) 60%, transparent);
    backdrop-filter: blur(6px);
    justify-content: center;
    align-items: center;
}

.loading-overlay.show {
    display: flex;
    animation: fade .25s;
}

@keyframes fade {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.loading-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 30px 36px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    min-width: 240px;
}

.loader-ring {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 16px;
}

.loader-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--grad);
    animation: bounce 1s infinite ease-in-out;
}

.loader-dot:nth-child(2) {
    animation-delay: .15s;
}

.loader-dot:nth-child(3) {
    animation-delay: .3s;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
        opacity: .5;
    }

    50% {
        transform: translateY(-9px);
        opacity: 1;
    }
}

#loading-text {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    margin-bottom: 14px;
}

.progress-track {
    width: 200px;
    height: 5px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: var(--grad);
    border-radius: 3px;
    transition: width .35s ease;
}

@media (max-height: 740px) {
    .main {
        padding-top: 12px;
        padding-bottom: 8px;
    }

    .hero {
        padding: 0px 0 14px;
    }

    .hero-title {
        font-size: 22px;
    }

    .card {
        padding: 14px 16px;
        margin-bottom: 10px;
    }

    .card-desc {
        margin-bottom: 10px;
    }

    .form-group {
        margin-bottom: 10px;
    }

    .footer {
        padding: 8px 12px 10px;
    }
}

@media (max-width: 720px) {
    .header-inner {
        height: auto;
        min-height: 62px;
        padding: 10px 16px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .tabs {
        flex: 1;
        overflow-x: auto;
    }

    .tab-btn {
        padding: 7px 12px;
        font-size: 13px;
    }

    .tab-btn svg {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }

    .card::before {
        background: linear-gradient(135deg, var(--primary), var(--primary-2));
    }
}