.speed-page {
    max-width: 1180px;
    margin: 0 auto;
    padding: 34px 20px 56px;
    color: var(--text-strong);
}

.speed-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 22px;
    align-items: stretch;
    margin-bottom: 22px;
}

.tool-kicker {
    display: inline-flex;
    width: fit-content;
    margin-bottom: 12px;
    padding: 7px 12px;
    border: 1px solid var(--header-border);
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.speed-hero h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.55rem);
    line-height: 1.04;
    letter-spacing: 0;
}

.speed-hero p {
    max-width: 720px;
    margin: 14px 0 0;
    color: var(--text-soft);
    font-size: 1.05rem;
    line-height: 1.7;
}

.speed-score-card,
.speed-tip {
    border: 1px solid var(--header-border);
    border-radius: 18px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.speed-score-card {
    display: grid;
    gap: 10px;
    padding: 18px;
}

.score-range {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-radius: 14px;
    padding: 14px 16px;
    background: var(--panel-soft);
}

.score-range strong {
    font-family: var(--font-display);
    font-size: 1.35rem;
}

.score-range span {
    color: var(--text-soft);
    font-weight: 800;
}

.score-range.good strong { color: #10b981; }
.score-range.warn strong { color: #f59e0b; }
.score-range.bad strong { color: #ef4444; }

.speed-panel {
    padding: 22px;
    margin-bottom: 18px;
}

.speed-form-panel {
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.speed-loading,
.speed-results {
    border: 1px solid var(--header-border);
    border-radius: 18px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.speed-form label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-soft);
    font-size: 0.8rem;
    font-weight: 900;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.speed-input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
}

.speed-input-row input {
    width: 100%;
    border: 3px solid #2563eb;
    border-radius: 14px;
    background: var(--panel-soft);
    color: var(--text-strong);
    padding: 14px 16px;
    font: inherit;
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14), 0 14px 34px rgba(37, 99, 235, 0.14);
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.speed-input-row input:focus {
    border-color: #0ea5e9;
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.24), 0 18px 38px rgba(37, 99, 235, 0.18);
}

.speed-btn {
    border: 0;
    border-radius: 14px;
    background: var(--accent);
    color: var(--accent-contrast);
    padding: 0 26px;
    font-weight: 900;
    cursor: pointer;
    transition: transform 0.18s ease, background 0.18s ease;
}

.speed-btn:hover {
    background: var(--accent-strong);
    transform: translateY(-1px);
}

.speed-btn:disabled {
    cursor: wait;
    opacity: 0.7;
    transform: none;
}

.speed-note {
    margin: 10px 0 0;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.speed-loading {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--panel-soft);
}

.speed-loading p {
    margin: 4px 0 0;
    color: var(--text-muted);
}

.speed-spinner {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 3px solid var(--header-border);
    border-top-color: var(--accent);
    animation: speed-spin 0.8s linear infinite;
}

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

.section-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.section-title-row h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.35rem;
}

.section-title-row p {
    margin: 5px 0 0;
    color: var(--text-muted);
    word-break: break-word;
}

.speed-results-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.device-card {
    border: 1px solid var(--header-border);
    border-radius: 16px;
    background: var(--panel-soft);
    padding: 18px;
}

.device-head {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: baseline;
    margin-bottom: 16px;
}

.device-head span {
    color: var(--text-soft);
    font-weight: 900;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.device-head strong {
    font-family: var(--font-display);
    font-size: 2rem;
}

.device-card.good .device-head strong { color: #10b981; }
.device-card.warn .device-head strong { color: #f59e0b; }
.device-card.bad .device-head strong { color: #ef4444; }

.metric-list {
    display: grid;
    gap: 8px;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid var(--header-border);
    padding-bottom: 8px;
}

.metric-row span:first-child {
    color: var(--text-soft);
}

.metric-row span:last-child {
    font-weight: 900;
    text-align: right;
}

.metric-error {
    display: grid;
    gap: 6px;
    border: 1px solid rgba(239, 68, 68, 0.24);
    border-radius: 12px;
    background: rgba(239, 68, 68, 0.08);
    color: var(--text-soft);
    padding: 12px;
    line-height: 1.45;
}

.metric-error strong {
    color: #ef4444;
}

.field-data {
    margin-top: 14px;
    border-radius: 12px;
    background: var(--panel);
    padding: 12px;
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.6;
}

.field-data strong {
    color: var(--text-strong);
}

.speed-tips-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.speed-tip {
    padding: 20px;
}

.speed-tip span {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 13px;
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 900;
    margin-bottom: 14px;
}

.speed-tip h2 {
    margin: 0 0 8px;
    font-family: var(--font-display);
    font-size: 1.08rem;
}

.speed-tip p {
    margin: 0;
    color: var(--text-soft);
    line-height: 1.6;
}

.is-hidden {
    display: none !important;
}

@media (max-width: 900px) {
    .speed-hero,
    .speed-results-grid,
    .speed-tips-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .speed-page {
        padding: 24px 14px 42px;
    }

    .speed-panel,
    .speed-score-card,
    .speed-tip {
        border-radius: 14px;
    }

    .speed-input-row {
        grid-template-columns: 1fr;
    }

    .speed-btn {
        min-height: 48px;
    }

    .device-head strong {
        font-size: 1.65rem;
    }

    .metric-row {
        display: grid;
    }

    .metric-row span:last-child {
        text-align: left;
    }
}