/* SeedKey Calculator Pro — giao diện tông xanh, đồng bộ với tool VIN / Flash File (.mbv-*, .aefs-*) */

.sk-calc-wrapper,
.sk-calc-wrapper * {
    box-sizing: border-box;
}

.sk-calc-wrapper {
    --sk-white: #FFFFFF;
    --sk-blue: #013D96;
    --sk-blue-soft: #f2f6ff;
    --sk-blue-hover: #dffbff;
    --sk-blue-border: rgba(1, 61, 150, 0.18);
    --sk-text: #1f2937;
    --sk-muted: #667085;
    --sk-border: #e4e9f2;
    --sk-green-bg: #ecfdf3;
    --sk-green: #027a48;
    --sk-red-bg: #fff4f2;
    --sk-red: #b42318;

    width: 100%;
    max-width: 1400px;
    margin: 36px auto;
    overflow: hidden;
    background: var(--sk-white);
    border: 1px solid var(--sk-blue-border);
    border-radius: 22px;
    box-shadow: 0 18px 45px rgba(1, 61, 150, 0.10);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    color: var(--sk-text);
}

/* ---------- Header (giống .mbv-header) ---------- */

.sk-header {
    padding: 38px 32px 30px;
    text-align: center;
    border-bottom: 1px solid var(--sk-border);
}

.sk-icon {
    width: 120px;
    margin: 0 auto 18px;
}

.sk-icon img {
    display: block;
    width: 100%;
    height: auto;
}

.sk-title {
    margin: 0 0 10px;
    color: var(--sk-blue);
    font-size: 31px;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.4px;
}

.sk-subtitle {
    max-width: 640px;
    margin: 0 auto 16px;
    color: var(--sk-muted);
    font-size: 14px;
    line-height: 1.65;
}

.sk-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border: 1px solid var(--sk-blue-border);
    border-radius: 999px;
    background: var(--sk-blue-soft);
    color: var(--sk-blue);
    font-size: 13px;
    font-weight: 700;
}

.sk-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--sk-green);
}

/* ---------- Layout ---------- */

.sk-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 24px;
    padding: 32px;
}

.sk-card {
    padding: 24px;
    border: 1px solid var(--sk-border);
    border-radius: 16px;
    background: var(--sk-white);
}

.sk-card-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--sk-blue);
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.2px;
}

.sk-card-title::before {
    content: "";
    flex-shrink: 0;
    width: 4px;
    height: 18px;
    border-radius: 2px;
    background: var(--sk-blue);
}

.sk-card-header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 16px;
}

.sk-card-header-flex .sk-card-title {
    margin-bottom: 0;
}

/* ---------- Form ---------- */

.sk-form-group {
    margin-bottom: 20px;
}

.sk-form-group label {
    display: block;
    margin-bottom: 7px;
    color: var(--sk-blue);
    font-size: 13px;
    font-weight: 750;
    letter-spacing: 0.2px;
}

.sk-search-box input {
    margin-bottom: 8px;
}

.sk-text-input,
.sk-select-input,
.sk-search-box input {
    width: 100%;
    min-height: 50px;
    padding: 12px 15px;
    border: 1px solid var(--sk-border);
    border-radius: 12px;
    outline: none;
    background: var(--sk-white);
    color: var(--sk-text);
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.sk-search-box input::placeholder,
.sk-text-input::placeholder {
    color: #98a2b3;
}

.sk-select-list {
    width: 100%;
    height: 150px;
    padding: 4px;
    border: 1px solid var(--sk-border);
    border-radius: 12px;
    outline: none;
    background: var(--sk-white);
    color: var(--sk-text);
    font-family: inherit;
    font-size: 14px;
}

.sk-select-list option {
    padding: 7px 10px;
    border-radius: 6px;
    cursor: pointer;
}

.sk-select-list option:checked {
    background: var(--sk-blue) linear-gradient(0deg, var(--sk-blue), var(--sk-blue));
    color: #FFFFFF;
    font-weight: 700;
}

.sk-text-input:focus,
.sk-select-input:focus,
.sk-select-list:focus,
.sk-search-box input:focus {
    border-color: var(--sk-blue);
    box-shadow: 0 0 0 4px rgba(1, 61, 150, 0.12);
}

.sk-seed-input {
    font-family: "Roboto Mono", "Courier New", monospace;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.sk-seed-input::placeholder {
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    font-weight: 400;
    letter-spacing: normal;
    text-transform: none;
}

/* ---------- Level chips ---------- */

.sk-chips {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
}

.sk-chip-label {
    margin-right: 2px;
    color: var(--sk-muted);
    font-size: 12px;
}

.sk-calc-wrapper .sk-chip {
    padding: 5px 11px;
    border: 1px solid var(--sk-blue-border);
    border-radius: 999px;
    background: var(--sk-blue-soft);
    color: var(--sk-blue);
    font-family: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.sk-calc-wrapper .sk-chip:hover {
    background: var(--sk-blue-hover);
    color: var(--sk-blue);
}

.sk-calc-wrapper .sk-chip.active {
    border-color: var(--sk-blue);
    background: var(--sk-blue);
    color: #FFFFFF;
}

/* ---------- Nút tính (giống .mbv-button) ---------- */

.sk-calc-wrapper .sk-btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    width: 100%;
    min-height: 54px;
    margin-top: 6px;
    padding: 14px 22px;
    border: 1px solid var(--sk-blue-border);
    border-radius: 12px;
    background: var(--sk-blue-soft);
    color: var(--sk-blue);
    font-family: inherit;
    font-size: 16px;
    font-weight: 750;
    cursor: pointer;
    transition: background 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.sk-calc-wrapper .sk-btn-submit:hover,
.sk-calc-wrapper .sk-btn-submit:focus {
    background: var(--sk-blue-hover);
    color: var(--sk-blue);
    box-shadow: 0 12px 24px rgba(1, 61, 150, 0.16);
    transform: translateY(-1px);
    outline: none;
}

.sk-calc-wrapper .sk-btn-submit:active {
    transform: translateY(0);
}

.sk-calc-wrapper .sk-btn-submit:disabled {
    opacity: 0.6;
    cursor: wait;
    transform: none;
}

.sk-btn-submit svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---------- Lỗi / kết quả ---------- */

.sk-error-box {
    margin-top: 16px;
    padding: 14px 16px;
    border: 1px solid #fecdca;
    border-radius: 12px;
    background: var(--sk-red-bg);
    color: var(--sk-red);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.55;
}

.sk-result-box {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid var(--sk-blue-border);
    border-radius: 16px;
    background: var(--sk-blue-soft);
    animation: skFadeIn 0.3s ease;
}

@keyframes skFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.sk-result-header {
    margin-bottom: 10px;
    color: var(--sk-blue);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.6px;
    text-transform: uppercase;
}

.sk-result-display {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--sk-blue-border);
    border-radius: 12px;
    background: var(--sk-white);
}

.sk-key-value {
    flex: 1;
    color: var(--sk-blue);
    font-family: "Roboto Mono", "Courier New", monospace;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 3px;
    word-break: break-all;
}

.sk-calc-wrapper .sk-btn-copy {
    flex-shrink: 0;
    padding: 10px 16px;
    border: 0;
    border-radius: 10px;
    background: var(--sk-blue);
    color: #FFFFFF;
    font-family: inherit;
    font-size: 13px;
    font-weight: 750;
    cursor: pointer;
    box-shadow: 0 8px 18px rgba(1, 61, 150, 0.22);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.sk-calc-wrapper .sk-btn-copy:hover {
    background: var(--sk-blue);
    color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(1, 61, 150, 0.28);
}

.sk-calc-wrapper .sk-btn-clear {
    flex-shrink: 0;
    padding: 7px 13px;
    border: 1px solid var(--sk-blue-border);
    border-radius: 999px;
    background: var(--sk-white);
    color: var(--sk-blue);
    font-family: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.sk-calc-wrapper .sk-btn-clear:hover {
    background: var(--sk-blue-soft);
    color: var(--sk-blue);
}

.sk-result-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 12px;
    color: var(--sk-muted);
    font-size: 12.5px;
}

.sk-result-meta b {
    color: var(--sk-blue);
}

.sk-result-meta .sk-ok {
    display: inline-flex;
    padding: 2px 9px;
    border-radius: 999px;
    background: var(--sk-green-bg);
    color: var(--sk-green);
    font-weight: 750;
}

/* ---------- Lịch sử ---------- */

.sk-history-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 520px;
    overflow-y: auto;
}

.sk-history-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 14px;
    border: 1px solid var(--sk-border);
    border-radius: 12px;
    background: var(--sk-white);
    font-size: 12.5px;
}

.sk-history-item:nth-child(odd) {
    background: var(--sk-blue-soft);
}

.sk-history-top {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    color: var(--sk-muted);
}

.sk-history-top b {
    color: var(--sk-blue);
}

.sk-history-seed {
    color: var(--sk-muted);
    font-family: "Roboto Mono", "Courier New", monospace;
    font-size: 11.5px;
    word-break: break-all;
}

.sk-history-key {
    color: var(--sk-blue);
    font-family: "Roboto Mono", "Courier New", monospace;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 1px;
    word-break: break-all;
}

.sk-history-empty {
    padding: 50px 16px;
    border: 1px dashed var(--sk-border);
    border-radius: 14px;
    color: var(--sk-muted);
    font-size: 14px;
    text-align: center;
}

/* ---------- Mobile ---------- */

@media (max-width: 860px) {
    .sk-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .sk-calc-wrapper {
        margin: 20px auto;
        border-radius: 16px;
    }

    .sk-header {
        padding: 30px 22px 24px;
    }

    .sk-title {
        font-size: 25px;
    }

    .sk-grid {
        padding: 16px;
        gap: 16px;
    }

    .sk-card {
        padding: 18px;
    }

    .sk-result-display {
        flex-direction: column;
        align-items: stretch;
    }

    .sk-key-value {
        font-size: 20px;
        text-align: center;
    }
}