/* ========================================================
   Kran-Finder – Stylesheet
   Responsiv, Clean, Funktional
   ======================================================== */

:root {
    /* Kran Burgard CI: Orange + Anthrazit (kran-burgard.de) */
    --color-primary: #1d1d1b;         /* Anthrazit */
    --color-primary-light: #3a3a38;
    --color-accent: #f7a600;          /* Burgard-Orange */
    --color-accent-dark: #d98f00;
    --color-on-accent: #1d1d1b;       /* Schwarze Schrift auf Orange (Badge-Stil) */
    --color-success: #27ae60;
    --color-danger: #c0392b;
    --color-warning: #f39c12;
    --color-bg: #f4f5f4;
    --color-surface: #ffffff;
    --color-text: #1d1d1b;
    --color-text-light: #6f6f6d;
    --color-border: #dcdedc;
    --radius: 4px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
    --transition: 0.2s ease;
}

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

html { font-size: 16px; }

body {
    font-family: Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

/* Header – Burgard-Stil: Orange-Leiste + dunkles Titelband */
.header { padding: 0; text-align: left; }
.header__bar {
    background: var(--color-accent);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.7rem 2rem;
}
.header__logo { height: 42px; display: block; }
.header__logo-fallback {
    font-weight: 800;
    font-style: italic;
    font-size: 1.4rem;
    color: #1d1d1b;
    letter-spacing: 0.3px;
}
.header__contact {
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.7rem;
}
.header__contact a {
    color: #ffffff;
    text-decoration: none;
}
.header__contact a:hover { text-decoration: underline; }
.header__sep { font-weight: 400; opacity: 0.8; }
.header__title {
    background: var(--color-primary);
    color: #ffffff;
    text-align: center;
    padding: 1.1rem 2rem 1.2rem;
}
.header__title h1 {
    font-size: 1.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.header__title h1 span { color: var(--color-accent); }
.header__title p {
    margin-top: 0.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: rgba(255,255,255,0.85);
}

/* Main Layout */
.main {
    display: grid;
    grid-template-columns: 380px 1fr;
    grid-template-rows: auto 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
    min-height: calc(100vh - 160px);
}

.panel--form { grid-column: 1; grid-row: 1 / 3; }
.panel--scene { grid-column: 2; grid-row: 1; }
.panel--result { grid-column: 2; grid-row: 2; }

/* Panels */
.panel {
    background: var(--color-surface);
    border: 1px solid #e8e9e6;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 1.6rem;
}
.panel h2 {
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--color-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--color-accent);
}

/* Form */
.form-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.field label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.3rem;
}
.field__unit {
    font-weight: 400;
    color: var(--color-text-light);
    font-size: 0.8rem;
}

.field input {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: border-color var(--transition);
    background: var(--color-bg);
}
.field input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(247, 166, 0, 0.2);
}
.field input.is-invalid {
    border-color: var(--color-danger);
    background: #fdf2f2;
}
.field input.is-valid {
    border-color: var(--color-success);
}

.field__error {
    display: block;
    font-size: 0.78rem;
    color: var(--color-danger);
    min-height: 1.2em;
    margin-top: 0.2rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}
.btn--primary {
    background: var(--color-accent);
    color: var(--color-on-accent);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    width: 100%;
    margin-top: 1rem;
}
.btn--primary:hover { background: var(--color-accent-dark); transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0); }
.btn--primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}
.btn--small {
    padding: 0.4rem 0.9rem;
    font-size: 0.78rem;
    font-weight: 600;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 99px;
    color: var(--color-text);
}
.btn--small:hover { border-color: var(--color-accent); }
.btn--small.is-active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Warnings */
.warnings {
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    background: #fef9e7;
    border: 1px solid var(--color-warning);
    border-radius: var(--radius);
    font-size: 0.85rem;
}
.warnings p {
    margin: 0.3rem 0;
    padding-left: 1.2rem;
    position: relative;
}
.warnings p::before {
    content: '\26A0';
    position: absolute;
    left: 0;
}

/* 3D Scene */
.scene-container {
    position: relative;
    container-type: inline-size;   /* Basis für die cqw-Größe des Wasserzeichens */
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 400px;
    background: linear-gradient(180deg, #87CEEB 0%, #B0E0E6 40%, #90EE90 40.5%, #228B22 100%);
    border-radius: 8px;
    border: 1px solid #e2e4e1;
    overflow: hidden;
}
#crane-canvas {
    display: block;
    width: 100%;
    height: 100%;
}
.scene-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 1rem;
    z-index: 1;
}
.scene-placeholder.is-hidden { display: none; }

/* Die Eingaben ergeben keine berechenbare Situation – das noch sichtbare
   Bild gehört zum letzten gültigen Stand und wird zurückgenommen. */
.scene-container.is-stale #crane-canvas {
    filter: grayscale(0.7) brightness(0.82);
}
.scene-container.is-stale::after {
    content: 'Diese Kombination lässt sich nicht darstellen – siehe Hinweis';
    position: absolute;
    left: 50%;
    bottom: 12px;
    transform: translateX(-50%);
    padding: 6px 14px;
    border-radius: 99px;
    background: rgba(29, 29, 27, 0.86);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    white-space: nowrap;
    z-index: 4;
}

.scene-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.75rem;
}
/* Neu starten / Profi-Modus rechts absetzen, damit "Maßlinien" als
   Ansichts-Schalter erkennbar bleibt */
.scene-controls #link-restart { margin-left: auto; }

/* Wasserzeichen über der 3D-Ansicht.
   Rein visuell – für Bild-Exporte wird der Schriftzug in captureImage()
   zusätzlich direkt ins JPEG gerendert. */
.scene-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-22deg);
    font-size: clamp(1rem, 4.5vw, 2.4rem);   /* Fallback ohne Container-Queries */
    font-size: 5.5cqw;
    font-style: italic;
    font-weight: 900;
    letter-spacing: 0.06em;
    color: #1d1d1b;
    opacity: 0.11;
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
    z-index: 2;
}
/* Solange der Platzhalter steht, ist noch keine Szene da – dann auch
   kein Wasserzeichen darüberlegen. */
.scene-placeholder:not(.is-hidden) ~ .scene-watermark { display: none; }

/* Vollbild-Button in der Ecke der Vorschau */
.scene-fs-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 6px;
    background: rgba(29, 29, 27, 0.62);
    color: #fff;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
}
.scene-fs-btn:hover { background: rgba(29, 29, 27, 0.85); }
.scene-fs-btn:active { transform: scale(0.94); }
.scene-fs-btn:focus-visible { outline: 2px solid #f7a600; outline-offset: 2px; }
.scene-fs-btn .ico-close { display: none; }
.scene-fs-btn.is-active .ico-open { display: none; }
.scene-fs-btn.is-active .ico-close { display: inline; }

/* Vollbild – CSS-Fallback, wenn die Fullscreen-API nicht greift
   (iframe ohne allow="fullscreen", iOS-Safari) */
.scene-container.is-fullscreen {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    max-height: none;
    aspect-ratio: auto;
    border-radius: 0;
    border: 0;
    z-index: 9999;
}
body.has-fullscreen-scene { overflow: hidden; }

/* Natives Vollbild: Container füllt den Bildschirm */
.scene-container:fullscreen {
    aspect-ratio: auto;
    height: 100vh;
    border-radius: 0;
}

/* Results */
.result-card {
    background: var(--color-bg);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}
.result-card h3 {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
}
.result-card__model {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
}
.result-card__manufacturer {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.result-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem 1rem;
}
.result-specs dt {
    font-size: 0.8rem;
    color: var(--color-text-light);
}
.result-specs dd {
    font-size: 0.95rem;
    font-weight: 600;
    text-align: right;
}

/* Loadchart canvas */
.loadchart-wrapper {
    width: 100%;
    aspect-ratio: 2 / 1;
    min-height: 250px;
    max-height: 450px;
}
#loadchart-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Alternatives */
#alternatives-list {
    list-style: none;
}
#alternatives-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

/* Loading state */
.is-loading .btn--primary::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    margin-left: 0.5rem;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer – dunkel wie Website-Footer */
.footer {
    text-align: center;
    padding: 1.1rem 2rem;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.75);
    background: var(--color-primary);
}

/* ── Responsive ───────────────────────────── */
@media (max-width: 1024px) {
    .main {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    .panel--form { grid-column: 1; grid-row: 1; }
    .panel--scene { grid-column: 1; grid-row: 2; }
    .panel--result { grid-column: 1; grid-row: 3; }

    .form-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .header__bar { padding: 0.6rem 1rem; }
    .header__logo { height: 34px; }
    .header__contact { font-size: 0.8rem; }
    .header__title { padding: 0.9rem 1rem; }
    .header__title h1 { font-size: 1.25rem; }
    .main { padding: 0.75rem; gap: 0.75rem; }
    .form-grid { grid-template-columns: 1fr; }
    .scene-container { min-height: 280px; }
    .result-specs { grid-template-columns: 1fr; }
}

/* ════════════════════════════════════════════════════════
   Geräteabhängige Ausgabe – gesteuert über js/device.js,
   das <html data-device="phone|tablet|desktop"> setzt.
   Die Media-Queries oben bleiben als Fallback ohne JS.
   ════════════════════════════════════════════════════════ */

/* ── Handy ─────────────────────────────────────── */
html[data-device="phone"] .main {
    display: block;
    padding: 0.7rem;
    min-height: auto;
}
html[data-device="phone"] .panel { padding: 1.05rem; margin-bottom: 0.8rem; }

/* Szene wird per JS in den Wizard verschoben → kompakte Live-Vorschau */
html[data-device="phone"] #wizard-panel .panel--scene {
    padding: 0;
    border: none;
    box-shadow: none;
    background: transparent;
    margin: 0 0 1rem;
}
html[data-device="phone"] #wizard-panel .scene-container {
    aspect-ratio: auto;
    height: 32vh;
    min-height: 190px;
    max-height: 320px;
}
html[data-device="phone"] #wizard-panel .scene-controls { margin-top: 0.5rem; }
.scene-touch-hint {
    text-align: center;
    font-size: 0.72rem;
    color: #9a9c98;
    margin: 0.35rem 0 0;
}

/* Große Touch-Ziele */
html[data-device="phone"] .btn--primary,
html[data-device="phone"] .btn--ghost { min-height: 48px; }
html[data-device="phone"] input[type="range"] { height: 40px; }
html[data-device="phone"] .card { min-height: 56px; }
html[data-device="phone"] .field input,
html[data-device="phone"] .field textarea {
    font-size: 1rem;            /* verhindert iOS-Auto-Zoom beim Fokus */
    padding: 0.75rem 0.8rem;
}

/* Weiter/Zurück klebt am unteren Bildschirmrand */
html[data-device="phone"] .wizard-nav {
    position: sticky;
    bottom: 0;
    z-index: 5;
    background: var(--color-surface);
    margin: 1rem -1.05rem -1.05rem;
    padding: 0.6rem 1.05rem calc(0.6rem + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--color-border);
}

/* Header kompakt */
html[data-device="phone"] .header__bar {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.3rem 1rem;
    padding: 0.55rem 0.8rem;
}
html[data-device="phone"] .header__logo { height: 30px; }
html[data-device="phone"] .header__contact { font-size: 0.8rem; }
html[data-device="phone"] .header__title { padding: 0.75rem 1rem; }
html[data-device="phone"] .header__title h1 { font-size: 1.2rem; }
html[data-device="phone"] .header__title p { font-size: 0.72rem; }

/* ── Tablet ────────────────────────────────────── */
html[data-device="tablet"] .btn--primary,
html[data-device="tablet"] .btn--ghost { min-height: 48px; }
html[data-device="tablet"] input[type="range"] { height: 36px; }
html[data-device="tablet"] .field input,
html[data-device="tablet"] .field textarea { font-size: 1rem; }

/* Tablet hochkant: einspaltig, Szene direkt unter dem Formular */
@media (orientation: portrait) {
    html[data-device="tablet"] .main {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    html[data-device="tablet"] .panel--form  { grid-column: 1; grid-row: 1; }
    html[data-device="tablet"] .panel--scene { grid-column: 1; grid-row: 2; }
    html[data-device="tablet"] .panel--result{ grid-column: 1; grid-row: 3; }
}