/* ============================================================
   Städfirma Template — Base styles (loaded on all pages)
   Reset, typography, buttons, container, shared sections.
   All colors/fonts via CSS custom properties from theme-schema.
   ============================================================ */

:root {
    --color-form-error-text: #d32f2f;
    --color-form-field-error: #d32f2f;

    /* Spacing scale (8px base) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 2.5rem;
    --space-8: 3rem;
    --space-9: 4rem;
    --space-10: 5rem;
    --space-11: 6rem;
    --space-12: 8rem;

    /* Section/container fluid spacing */
    --section-pad-y: clamp(3.5rem, 7vw, 6rem);
    --container-pad-x: clamp(1.25rem, 4vw, 2rem);

    /* Radius — rounded, friendly */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Layered shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 14px 36px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.05);
    --shadow-xl: 0 28px 64px rgba(0,0,0,0.12), 0 8px 18px rgba(0,0,0,0.06);

    /* Subtle card borders */
    --border-subtle: 1px solid rgba(0,0,0,0.06);
    --border-subtle-strong: 1px solid rgba(0,0,0,0.1);
}

/* --- Reset --- */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body), 'Source Sans 3', system-ui, -apple-system, sans-serif;
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--color-accent);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading), 'DM Sans', system-ui, -apple-system, sans-serif;
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-text);
    text-wrap: balance;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
}

ul, ol {
    list-style: none;
}

address {
    font-style: normal;
}

/* --- Focus indicators (a11y) --- */

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

/* --- Skip link (a11y) --- */

.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    background: var(--color-primary);
    color: var(--color-on-dark);
    padding: 0.5rem 1rem;
    border-radius: 0 0 4px 4px;
    z-index: 10000;
    font-size: 0.875rem;
}

.skip-link:focus {
    top: 0;
    color: var(--color-on-dark);
}

/* --- Container --- */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-pad-x);
}

/* --- Section label (small uppercase tag above headings) --- */

.section-label {
    display: block;
    font-family: var(--font-body), system-ui, sans-serif;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

/* --- Buttons --- */

.btn {
    display: inline-block;
    font-family: var(--font-body), system-ui, sans-serif;
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-on-dark);
    border-color: var(--color-accent);
}

.btn-accent:hover {
    background-color: color-mix(in srgb, var(--color-accent) 85%, #000);
    color: var(--color-on-dark);
}

.btn-secondary {
    background-color: var(--color-primary);
    color: var(--color-on-dark);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: color-mix(in srgb, var(--color-primary) 85%, #000);
    color: var(--color-on-dark);
}

.btn-outline-dark {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-text);
}

.btn-outline-dark:hover {
    background: var(--color-text);
    color: var(--color-background);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-on-dark);
    border-color: var(--overlay-on-dark-40);
}

.btn-outline-light:hover {
    background: var(--overlay-on-dark-10);
    border-color: var(--color-on-dark);
    color: var(--color-on-dark);
}

.btn-light {
    background: #fff;
    color: var(--color-text);
    border-color: #fff;
}

.btn-light:hover {
    background: var(--color-background);
    color: var(--color-text);
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

/* --- Placeholder images --- */

.placeholder-img {
    width: 100%;
    aspect-ratio: 16/10;
    background: linear-gradient(145deg, var(--color-surface) 0%, color-mix(in srgb, var(--color-primary) 8%, var(--color-background)) 50%, var(--color-surface) 100%);
    border-radius: 12px;
    display: block;
    object-fit: cover;
}

/* --- Page Hero (subpages) --- */

.page-hero {
    background: linear-gradient(135deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 75%, #000));
    color: var(--color-on-dark);
    padding: clamp(3.5rem, 6vw, 5rem) 0 clamp(3rem, 5vw, 4rem);
}

.page-hero h1 {
    color: var(--color-on-dark);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 0.5rem;
}

.page-hero-subtitle {
    color: var(--overlay-on-dark-80);
    font-size: 1.0625rem;
    max-width: 600px;
    line-height: 1.6;
}

/* --- CTA Block (shared across pages) --- */

.cta-block {
    background: linear-gradient(135deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 70%, #000));
    color: var(--color-on-dark);
    text-align: center;
    padding: var(--section-pad-y) 0;
    position: relative;
}

.cta-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: var(--color-background);
    clip-path: ellipse(55% 100% at 50% 0%);
}

.cta-block-inner {
    padding-top: 1rem;
}

.cta-block-inner h2 {
    color: var(--color-on-dark);
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 0.75rem;
}

.cta-block-inner p {
    color: var(--overlay-on-dark-80);
    font-size: 1.0625rem;
    max-width: 500px;
    margin: 0 auto;
}

.cta-block-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

@media (min-width: 768px) {
    .cta-block::before {
        height: 60px;
    }
}

/* --- Form styles (shared) --- */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9375rem;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body), system-ui, sans-serif;
    font-size: 1rem;
    border: 1.5px solid color-mix(in srgb, var(--color-text) 20%, var(--color-background));
    border-radius: 8px;
    background: #fff;
    color: var(--color-text);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: -1px;
    border-color: var(--color-accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    margin-bottom: 1rem;
    font-size: 0.9375rem;
    min-height: 1.5em;
}

.form-success {
    color: var(--color-primary);
    font-weight: 600;
}

.form-error {
    color: var(--color-form-field-error);
    font-weight: 500;
}

.form-info {
    color: var(--color-text_muted);
    font-style: italic;
}

.field-error {
    display: block;
    font-size: 0.8rem;
    color: var(--color-form-field-error);
    margin-top: 0.25rem;
}

input[aria-invalid="true"],
textarea[aria-invalid="true"] {
    border-color: var(--color-form-field-error);
}

/* --- Reduced motion --- */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}