/* ===== Reset & Variables ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: oklch(97% 0.003 250);
    --bg-card: oklch(100% 0 0);
    --bg-card-alt: oklch(99% 0.002 250);
    --text: oklch(13% 0.008 250);
    --text-muted: oklch(40% 0.007 250);
    --text-hint: oklch(50% 0.005 250);
    --accent: oklch(50% 0.14 165);
    --accent-light: oklch(95% 0.035 165);
    --accent-dark: oklch(38% 0.11 165);
    --border: oklch(91% 0.005 250);
    --border-focus: oklch(50% 0.14 165);
    --danger: oklch(47% 0.18 22);
    --danger-bg: oklch(98% 0.02 22);
    --warn: oklch(52% 0.15 75);
    --warn-bg: oklch(98% 0.02 75);
    --radius: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 1px 3px oklch(13% 0.008 250 / 6%);
    --shadow-md: 0 1px 3px oklch(13% 0.008 250 / 5%), 0 8px 24px oklch(13% 0.008 250 / 9%);
    --font: 'DM Sans', -apple-system, sans-serif;
    --font-mono: 'DM Mono', monospace;
    --transition: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
    color-scheme: light;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--font);
    font-optical-sizing: auto;
    font-kerning: normal;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
}

/* Film grain overlay */
.grain {
    position: fixed; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none; z-index: 9999;
}

/* ===== Header ===== */
.header {
    padding: 2.5rem 1.5rem 1.5rem;
    text-align: center;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.logo__icon {
    font-size: 1.6rem;
}

.logo__text {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text);
}

.logo__dot {
    color: var(--accent);
}

.header__tagline {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-style: italic;
    max-width: 400px;
    margin: 0 auto;
    text-wrap: balance;
}

/* ===== Main ===== */
.main {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 1.25rem 3rem;
}

/* ===== Input Card ===== */
.input-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1rem;
    background: none;
    border: none;
    font-family: var(--font);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.tab:hover { color: var(--text); background: oklch(13% 0.008 250 / 3%); }

.tab:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
    border-radius: var(--radius-sm);
}

.tab--active {
    color: var(--accent-dark);
    background: oklch(50% 0.14 165 / 5%);
}

.tab--active::after {
    content: '';
    position: absolute;
    bottom: -1px; left: 1rem; right: 1rem;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

/* Tab Content */
.tab-content {
    display: none;
    padding: 1.25rem;
}
.tab-content--active { display: block; }

/* Text Input */
.input-group { position: relative; }

textarea, input[type="text"] {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font);
    font-size: 0.9375rem;
    color: var(--text);
    background: var(--bg-card-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--transition);
    resize: vertical;
}

textarea:hover:not(:focus), input[type="text"]:hover:not(:focus) {
    border-color: oklch(80% 0.006 250);
}

textarea:focus, input[type="text"]:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px oklch(50% 0.14 165 / 10%);
}

textarea::placeholder, input::placeholder {
    color: var(--text-hint);
}

.char-count {
    position: absolute;
    bottom: 0.5rem; right: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-hint);
}

/* Dropzone */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.dropzone:hover, .dropzone--dragover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.dropzone:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-color: var(--accent);
}

.dropzone__content {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.dropzone__content p { margin-top: 0.5rem; }

.dropzone__link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.dropzone__hint {
    font-size: 0.75rem;
    color: var(--text-hint);
}

.dropzone__preview {
    width: 100%;
    padding: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.dropzone__preview img {
    max-height: 160px;
    max-width: 100%;
    object-fit: contain;
    border-radius: 6px;
}

.dropzone__remove {
    position: absolute;
    top: 0.5rem; right: 0.5rem;
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50%;
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.dropzone__remove:hover {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: var(--danger);
}

.dropzone__remove:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Footer Row */
.input-footer {
    display: grid;
    grid-template-columns: 110px 1fr;
    grid-template-rows: auto auto auto;
    column-gap: 0.75rem;
    row-gap: 0.25rem;
    padding: 0 1.25rem 1.25rem;
}

.plz-field-wrap {
    grid-column: 1;
    grid-row: 1;
    position: relative;
    display: flex;
}

#plz-input {
    flex: 1;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 1rem;
    letter-spacing: 0.1em;
    padding-right: 2rem;
}

.plz-auto-badge {
    position: absolute;
    right: 0.4rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 0.65rem;
    cursor: pointer;
    transition: var(--transition);
}

.plz-auto-badge:hover {
    filter: brightness(0.9);
}

#plz-input.plz--auto-detected {
    border-color: var(--accent);
}

.plz-hint {
    grid-column: 1;
    grid-row: 2;
    font-size: 0.7rem;
    color: var(--accent);
    min-height: 1em;
}

.submit-btn {
    grid-column: 2;
    grid-row: 1;
    align-self: stretch;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    height: 44px;
}

.submit-btn:hover:not(:disabled) {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px oklch(50% 0.14 165 / 28%);
}

.submit-btn:active:not(:disabled) {
    transform: scale(0.98);
    box-shadow: none;
    transition-duration: 0.08s;
}

.submit-btn:focus { outline: none; }

.submit-btn:focus-visible {
    outline: 2px solid rgba(255,255,255,0.8);
    outline-offset: 2px;
}

.submit-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.spinner {
    display: inline-block;
    width: 16px; height: 16px;
    vertical-align: middle;
    margin-right: 0.35rem;
    flex-shrink: 0;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ===== Results ===== */
.results-section {
    margin-top: 1.5rem;
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(12px); filter: blur(4px); }
    to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.result-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border);
}

.result-icon {
    width: 52px; height: 52px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius);
    background: var(--accent-light);
    font-size: 1.6rem;
    flex-shrink: 0;
}

.result-title {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.result-category {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.2rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-dark);
    background: var(--accent-light);
    padding: 0.15rem 0.6rem;
    border-radius: 100px;
}

.result-confidence {
    font-size: 0.7rem;
    color: var(--text-hint);
    font-family: var(--font-mono);
    margin-left: auto;
    white-space: nowrap;
}

.result-body { padding: 1.25rem; }

.result-block {
    margin-bottom: 1.25rem;
}

.result-block:last-child { margin-bottom: 0; }

.result-block__label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.result-block__text {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.material-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.material-tag {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: 0.15rem 0.6rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-muted);
}

/* Local Info Box */
.local-info {
    background: var(--accent-light);
    border: 1px solid oklch(50% 0.14 165 / 15%);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
}

.local-info__title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-dark);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.local-info__row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
    font-size: 0.875rem;
}

.local-info__key {
    font-weight: 500;
    color: var(--accent-dark);
    min-width: 110px;
    flex-shrink: 0;
}

.local-info__val {
    color: var(--text);
}

/* Multiple Disposal Options */
.local-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.local-option {
    border: 1px solid oklch(50% 0.14 165 / 20%);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.local-option__header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: oklch(50% 0.14 165 / 10%);
    padding: 0.3rem 0.75rem;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--accent-dark);
}

.local-option__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--accent-dark);
    color: #fff;
    border-radius: 50%;
    font-size: 0.65rem;
    font-weight: 700;
    flex-shrink: 0;
}

.local-option__name {
    flex: 1;
}

.local-option__rows {
    padding: 0.5rem 0.75rem;
}

/* Decomposition */
.decompose-box {
    background: var(--warn-bg);
    border: 1px solid oklch(52% 0.15 75 / 20%);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
}

.decompose-box__title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--warn);
    margin-bottom: 0.35rem;
}

.decompose-box__text {
    font-size: 0.875rem;
    color: var(--text);
}

/* No Local Info */
.no-local {
    font-size: 0.8125rem;
    color: var(--text-hint);
    font-style: italic;
    padding: 0.5rem 0;
}

.no-local__hint {
    margin-top: 0.4rem;
    font-style: normal;
    color: var(--text-muted);
}

/* Error */
.error-card {
    background: var(--danger-bg);
    border: 1px solid oklch(47% 0.18 22 / 20%);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.error-card__message {
    color: var(--danger);
    font-size: 0.9375rem;
}

.error-retry-btn {
    padding: 0.4rem 1.25rem;
    background: var(--danger);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.error-retry-btn:hover {
    opacity: 0.88;
    transform: translateY(-1px);
}

.error-retry-btn:focus-visible {
    outline: 2px solid var(--danger);
    outline-offset: 2px;
}

/* Skeleton Loading */
.skeleton-card {
    padding: 1.25rem;
}

.skeleton-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
}

.skeleton-icon {
    width: 52px; height: 52px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.skeleton-lines {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skeleton-body {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.skeleton-line {
    height: 14px;
    border-radius: 100px;
    width: 100%;
}

.skeleton-line--title { height: 18px; width: 55%; }
.skeleton-line--sub { height: 12px; width: 35%; }
.skeleton-line--short { width: 65%; }

@keyframes skeletonPulse {
    0%, 100% { background-color: var(--border); }
    50% { background-color: var(--bg-card-alt); }
}

.skeleton-pulse {
    background-color: var(--border);
    animation: skeletonPulse 1.4s ease-in-out infinite;
}

/* Result card focus outline (keyboard nav only; suppress on programmatic focus) */
.result-card:focus { outline: none; }
.result-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

/* Result actions bar (new search) */
.result-actions {
    padding: 0.5rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
}

.new-search-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.75rem;
    font-family: var(--font);
    font-size: 0.8rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.new-search-btn:hover {
    border-color: var(--accent);
    color: var(--accent-dark);
}

.new-search-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ===== Affiliate Links ===== */
.affiliate-section {
    padding: 0.75rem 1.25rem 1rem;
    border-top: 1px solid var(--border);
}

.affiliate-section__label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.affiliate-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.affiliate-link {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text);
    transition: var(--transition);
    flex: 1;
    min-width: 180px;
    position: relative;
}

.affiliate-link:hover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.affiliate-link__badge {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-hint);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 0.05rem 0.4rem;
    align-self: flex-start;
}

.affiliate-link__partner {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
}

.affiliate-link__label {
    font-size: 0.8rem;
    color: var(--accent-dark);
    font-weight: 500;
}

/* ===== Feedback Widget ===== */
.feedback-widget {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border);
}

.feedback-prompt {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feedback-prompt__text {
    font-size: 0.875rem;
    color: var(--text-hint);
}

.feedback-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.6rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.feedback-btn:hover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.feedback-form__textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-family: var(--font);
    font-size: 0.8125rem;
    color: var(--text);
    background: var(--bg-card-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    resize: vertical;
    transition: var(--transition);
}

.feedback-form__textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px oklch(50% 0.14 165 / 10%);
}

.feedback-form__submit {
    align-self: flex-start;
    padding: 0.4rem 1rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.feedback-form__submit:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
}

.feedback-thanks {
    font-size: 0.8125rem;
    color: var(--text-muted);
    padding: 0.25rem 0;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.7rem;
    color: var(--text-hint);
    letter-spacing: 0.02em;
}
.footer a {
    color: var(--text-hint);
    text-decoration: none;
}
.footer a:hover { color: var(--text-muted); }

.input-group--spaced {
    margin-top: 0.75rem;
}

/* Submit hint (form validation feedback) */
.submit-hint {
    grid-column: 1 / -1;
    grid-row: 3;
    font-size: 0.72rem;
    color: var(--text-hint);
    text-align: center;
    min-height: 1em;
}

/* Dropzone file error */
.dropzone__error {
    color: var(--danger);
    font-size: 0.8rem;
    margin-top: 0.4rem;
    text-align: center;
}

/* ===== Impressum ===== */
.impressum-wrap {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

.impressum-wrap h1 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text);
}

.impressum-wrap h2 {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-hint);
    margin: 2rem 0 0.5rem;
}

.impressum-wrap p,
.impressum-wrap address {
    font-style: normal;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-muted);
}

.impressum-wrap a {
    color: var(--accent);
    text-decoration: none;
}

.impressum-wrap a:hover { text-decoration: underline; }

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-hint);
    text-decoration: none;
    margin-bottom: 2rem;
}

.back-link:hover { color: var(--text-muted); }

/* ===== Mobile ===== */
@media (max-width: 480px) {
    .header { padding: 1.5rem 1rem 1rem; }
    .logo__text { font-size: 1.2rem; }
    .main { padding: 0 0.75rem 2rem; }
    .input-footer { grid-template-columns: 1fr; }
    .submit-btn { grid-column: 1; grid-row: 3; width: 100%; }
    .submit-hint { grid-row: 4; }
}

@media (prefers-reduced-motion: reduce) {
    .results-section {
        animation: none;
        opacity: 1;
        filter: none;
    }
    .skeleton-pulse {
        animation: none;
        background-color: var(--border);
    }
    .submit-btn:hover:not(:disabled),
    .submit-btn:active:not(:disabled),
    .feedback-form__submit:hover,
    .error-retry-btn:hover {
        transform: none;
    }
}