/* ITune Effektkalkulator — black + racing red */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

.kd-tuning-container {
    --bg: #000;
    --surface: #0c0c0c;
    --surface-2: #161616;
    --border: #1f1f1f;
    --accent: #E10600;
    --accent-hover: #b30500;
    --accent-soft: rgba(225, 6, 0, 0.15);
    --text: #ffffff;
    --muted: rgba(255, 255, 255, 0.65);
    --display-font: 'Oswald', 'Bebas Neue', 'Anton', Impact, sans-serif;
    --body-font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

    background: var(--bg);
    color: var(--text);
    font-family: var(--body-font);
    padding: 60px 20px;
    min-height: 100vh;
    box-sizing: border-box;
}

.kd-tuning-container *,
.kd-tuning-container *::before,
.kd-tuning-container *::after {
    box-sizing: border-box;
}

.kd-tuning-container .container {
    background: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    text-align: center;
    color: var(--text);
}

.kd-tuning-container h1 {
    margin: 0 0 32px;
    font-family: var(--display-font);
    font-weight: 700;
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text);
    line-height: 1;
}

.kd-tuning-container h1 .accent {
    color: var(--accent);
}

/* Plate group ------------------------------------------------------------- */

.kd-tuning-container .plate-group {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

/* The flag + input behave as one unit — never wrap apart from each other. */
.kd-tuning-container .plate-input-wrap {
    display: flex;
    align-items: stretch;
    flex-wrap: nowrap;
    min-width: 0;
}

.kd-tuning-container .plate-group .flag-container {
    background-color: #003399;
    border-radius: 6px 0 0 6px;
    padding: 6px 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid #003399;
}

.kd-tuning-container .plate-group .flag-container img {
    width: 22px;
    height: auto;
    margin-bottom: 2px;
}

.kd-tuning-container .plate-group .flag-container .country-code {
    font-size: 12px;
    color: #fff;
    font-weight: 700;
    letter-spacing: 1px;
}

.kd-tuning-container .plate-group input[type="text"] {
    width: 260px;
    padding: 14px 16px;
    border-radius: 0 6px 6px 0;
    border: 1px solid #003399;
    border-left: none;
    font-size: 24px;
    font-weight: 700;
    text-transform: uppercase;
    background: #ffffff;
    color: #000;
    text-align: center;
    letter-spacing: 4px;
    margin: 0;
    flex: 0 0 auto;
}

.kd-tuning-container .plate-group input[type="text"]::placeholder {
    color: #b0b0b0;
    letter-spacing: 4px;
}

.kd-tuning-container .plate-group button {
    background-color: var(--accent);
    color: #fff;
    padding: 0 28px;
    height: 56px;
    border: none;
    border-radius: 999px;
    font-family: var(--body-font);
    font-size: 15px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    margin: 0;
}

.kd-tuning-container .plate-group button:hover {
    background-color: var(--accent-hover);
}

.kd-tuning-container .plate-group button:active {
    transform: translateY(1px);
}

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

.kd-tuning-container form.car-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.kd-tuning-container .form-group {
    text-align: left;
    min-width: 0;
}

.kd-tuning-container label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
}

.kd-tuning-container select,
.kd-tuning-container .vtc-select {
    width: 100%;
    padding: 14px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    font-size: 15px;
    font-family: var(--body-font);
    background: var(--surface);
    color: var(--text);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23E10600' d='M0 0l6 8 6-8z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.kd-tuning-container select:hover {
    border-color: var(--accent);
}

.kd-tuning-container select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.kd-tuning-container select option {
    background: #0c0c0c;
    color: var(--text);
}

.kd-tuning-container select option[disabled] {
    color: var(--muted);
}

.kd-tuning-container #brand,
.kd-tuning-container #model,
.kd-tuning-container #generation,
.kd-tuning-container #engine {
    background-color: var(--surface);
}

/* Vehicle info panel (work-tool view) ------------------------------------ */

.kd-tuning-container .vehicle-info {
    margin-top: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: left;
}

.kd-tuning-container .vehicle-info[hidden] {
    display: none;
}

.kd-tuning-container .vi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.kd-tuning-container .vi-cell {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    min-width: 0;
}

.kd-tuning-container .vi-cell-wide {
    grid-column: 1 / -1;
}

.kd-tuning-container .vi-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
    font-weight: 600;
    margin-bottom: 6px;
}

.kd-tuning-container .vi-value {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    word-break: break-word;
}

.kd-tuning-container .vi-mono {
    font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
    letter-spacing: 0.04em;
    font-size: 14px;
}

.kd-tuning-container .vi-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.kd-tuning-container .vi-swatch {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.25);
    margin-right: 8px;
    vertical-align: middle;
}

.kd-tuning-container .vi-eu {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.kd-tuning-container .vi-eu small {
    color: var(--muted);
    font-weight: 400;
    font-size: 12px;
    margin-left: 4px;
}

.kd-tuning-container .vi-eu-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    box-shadow: 0 0 8px currentColor;
}

.kd-tuning-container .vi-eu-green  .vi-eu-dot { background: #2e7d32; color: #2e7d32; }
.kd-tuning-container .vi-eu-yellow .vi-eu-dot { background: #f9a825; color: #f9a825; }
.kd-tuning-container .vi-eu-red    .vi-eu-dot { background: #d32f2f; color: #d32f2f; }
.kd-tuning-container .vi-eu-neutral .vi-eu-dot { background: #555; color: #555; }

.kd-tuning-container .vi-eu-green  { color: #66bb6a; }
.kd-tuning-container .vi-eu-yellow { color: #ffb74d; }
.kd-tuning-container .vi-eu-red    { color: #ef5350; }

/* Engine details ---------------------------------------------------------- */

.kd-tuning-container #engineDetails {
    position: relative;
    margin-top: 16px;
    text-align: left;
    background: var(--surface);
    padding: 28px;
    border-radius: 12px;
    border: 1px solid var(--border);
    min-height: 80px;
}

.kd-tuning-container #engineDetails:empty {
    display: none;
}

.kd-tuning-container #engineDetails h3 {
    margin: 0 0 8px;
    font-family: var(--display-font);
    font-size: 1.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.kd-tuning-container #engineDetails p {
    color: var(--muted);
    margin: 0 0 20px;
}

/* Tuning table ------------------------------------------------------------ */

.kd-tuning-container .tbl-tuning {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 12px;
    overflow: hidden;
    border-radius: 8px;
}

.kd-tuning-container .tbl-tuning th,
.kd-tuning-container .tbl-tuning td {
    border: none;
    padding: 14px 12px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.kd-tuning-container .tbl-tuning th {
    background-color: #1a1a1a;
    color: var(--text);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.1em;
}

.kd-tuning-container .tbl-tuning .stage1-header,
.kd-tuning-container .tbl-tuning .stage2-header {
    background-color: var(--accent);
    color: #fff;
}

.kd-tuning-container .tbl-tuning .stage2-header {
    background-color: #8b0400;
}

.kd-tuning-container .tbl-tuning td.stage1-cell {
    background-color: var(--accent-soft);
    color: var(--accent);
    font-weight: 600;
}

.kd-tuning-container .tbl-tuning td.stage2-cell {
    background-color: rgba(139, 4, 0, 0.18);
    color: #ff7570;
    font-weight: 600;
}

.kd-tuning-container .tbl-tuning td:not(.stage1-cell):not(.stage2-cell) {
    background-color: #0a0a0a;
    color: var(--text);
}

.kd-tuning-container .tbl-tuning tr:last-child td {
    border-bottom: none;
}

/* Chart ------------------------------------------------------------------- */

.kd-tuning-container .chart-container,
.kd-tuning-container #tuningChart {
    background: var(--surface-2);
    padding: 16px;
    border-radius: 12px;
    margin-top: 24px;
    border: 1px solid var(--border);
}

.kd-tuning-container #tuningChart {
    padding: 0;
    background: transparent;
    border: none;
}

/* Messages ---------------------------------------------------------------- */

.kd-tuning-container .message {
    padding: 14px 18px;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
    margin-bottom: 24px;
    border-left: 4px solid transparent;
}

.kd-tuning-container .message.success {
    background-color: rgba(40, 167, 69, 0.1);
    border-left-color: #28a745;
    color: #6dd58c;
}

.kd-tuning-container .message.error {
    background-color: var(--accent-soft);
    border-left-color: var(--accent);
    color: #ff5e58;
}

.kd-tuning-container .message.warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-left-color: #ffc107;
    color: #ffd454;
}

/* Loading wheel (kept) ---------------------------------------------------- */

.kd-tuning-container .wheel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background-size: contain;
    z-index: 999;
}

.kd-tuning-container .hidden {
    display: none;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.kd-tuning-container .spin-slow { animation: spin 1s linear infinite; }
.kd-tuning-container .spin-fast { animation: spin 0.5s linear infinite; }

/* Responsive -------------------------------------------------------------- */
/* Breakpoints follow common web standards:
   ≤ 1024px : tablet
   ≤ 768px  : large phone / small tablet portrait
   ≤ 480px  : phone
   ≤ 360px  : narrow phone (iPhone SE 1st gen et al)
*/

/* Tablet --------------------------------------------------------- */
@media (max-width: 1024px) {
    .kd-tuning-container { padding: 48px 24px; }
    .kd-tuning-container h1 { margin-bottom: 28px; }
    .kd-tuning-container .vi-grid { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
}

/* Large phone / small tablet portrait ---------------------------- */
@media (max-width: 768px) {
    .kd-tuning-container { padding: 40px 16px; }

    .kd-tuning-container form.car-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .kd-tuning-container .vi-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .kd-tuning-container .vehicle-info,
    .kd-tuning-container #engineDetails {
        padding: 20px;
    }

    .kd-tuning-container .tbl-tuning th,
    .kd-tuning-container .tbl-tuning td {
        padding: 10px 8px;
        font-size: 13px;
    }
}

/* Phone ---------------------------------------------------------- */
@media (max-width: 480px) {
    .kd-tuning-container {
        padding: 28px 12px;
    }

    .kd-tuning-container h1 {
        font-size: clamp(1.6rem, 8vw, 2.4rem);
        margin-bottom: 20px;
    }

    /* Plate group: flag+input on row 1, button full-width on row 2 */
    .kd-tuning-container .plate-group {
        gap: 8px;
        margin-bottom: 24px;
    }
    .kd-tuning-container .plate-input-wrap {
        flex: 1 1 auto;
        max-width: 100%;
    }
    .kd-tuning-container .plate-group .flag-container {
        padding: 4px 6px;
        flex: 0 0 auto;
    }
    .kd-tuning-container .plate-group .flag-container img { width: 18px; }
    .kd-tuning-container .plate-group input[type="text"] {
        width: auto;
        flex: 1 1 0;
        min-width: 0;
        font-size: 20px;
        letter-spacing: 3px;
        padding: 12px 10px;
    }
    .kd-tuning-container .plate-group button {
        flex: 1 1 100%;
        height: 48px;
        padding: 0 20px;
    }

    /* All cascading dropdowns stack */
    .kd-tuning-container form.car-form {
        grid-template-columns: 1fr;
        gap: 10px;
        margin-bottom: 24px;
    }

    /* Vehicle info: 1 col, slightly tighter */
    .kd-tuning-container .vi-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    .kd-tuning-container .vehicle-info {
        padding: 16px;
        border-radius: 10px;
    }
    .kd-tuning-container .vi-cell { padding: 10px 12px; }

    .kd-tuning-container #engineDetails {
        padding: 16px;
        border-radius: 10px;
    }

    /* Tuning table: horizontal scroll instead of cramming all 4 cols */
    .kd-tuning-container #tuningResults {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -16px;
        padding: 0 16px;
    }
    .kd-tuning-container .tbl-tuning {
        min-width: 380px;
    }
    .kd-tuning-container .tbl-tuning th,
    .kd-tuning-container .tbl-tuning td {
        padding: 8px 6px;
        font-size: 12px;
    }

    /* Chart legend / fonts shrink to fit */
    .kd-tuning-container #tuningChart { margin-top: 16px; }
    .kd-tuning-container .message { padding: 12px 14px; font-size: 14px; }
}

/* Narrow phone -------------------------------------------------- */
@media (max-width: 360px) {
    .kd-tuning-container .plate-group input[type="text"] {
        font-size: 18px;
        letter-spacing: 2px;
        padding: 10px 8px;
    }
    .kd-tuning-container .plate-group .flag-container { padding: 4px 4px; }
}