/* ==========================================================================
   christian-kemsies.com — Design System
   Typography: iA Writer Quattro (body), iA Writer Mono (labels/nav)
   Palette: Brown/amber/beige — warm, precise, calm
   ========================================================================== */


/* --- Font Faces --- */
@font-face {
    font-family: 'iA Writer Quattro';
    src: url('../fonts/iAWriterQuattroV.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'iA Writer Mono';
    src: url('../fonts/iAWriterMonoV.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

/* --- CSS Custom Properties --- */
:root {
    /* Typography */
    --font-body: 'iA Writer Quattro', Georgia, serif;
    --font-mono: 'iA Writer Mono', 'Courier New', monospace;
    --font-size-body: 18px;
    --line-height-body: 1.72;
    --letter-spacing-body: 0.01em;

    /* Color Palette */
    --black: #292929;
    --brown-deep: #3a2f28;
    --brown-dark: #302e2a;
    --brown-mid: #5c4f43;
    --brown-warm: #7a6a5a;
    --beige: #f5f0e8;
    --beige-light: #faf7f2;
    --beige-pale: #fdfcfa;
    --amber-muted: #805f12;
    --amber-hover: #6b5010;
    --gold: #F5D698;
    --white: #ffffff;
    --gray: #666666;

    /* Spacing (8px grid) */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 32px;
    --space-xl: 48px;
    --space-2xl: 64px;
    --space-3xl: 96px;

    /* Layout */
    --content-width: 680px;
    --container-width: 1120px;
    --container-padding: var(--space-md);
}


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

html {
    font-size: var(--font-size-body);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: var(--line-height-body);
    letter-spacing: var(--letter-spacing-body);
    color: var(--brown-mid);
    background-color: var(--beige);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Skip Link (keyboard accessibility) --- */
.skip-link {
    position: absolute;
    left: -9999px;
    z-index: 100;
    padding: var(--space-xs) var(--space-sm);
    background: var(--white);
    color: var(--brown-deep);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-decoration: none;
}

.skip-link:focus {
    left: var(--space-sm);
    top: var(--space-sm);
}

/* --- Screen reader only (visually hidden, accessible) --- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --- Focus indicators (keyboard navigation) --- */
:focus-visible {
    outline: 2px solid var(--amber-muted);
    outline-offset: 2px;
}

/* --- Typography --- */
h1, h2, h3 {
    color: var(--black);
    line-height: 1.3;
}

h1 { font-size: 2.2rem; margin-bottom: var(--space-sm); }
h2 { font-size: 1.4rem; margin-bottom: var(--space-sm); }
h3 { font-size: 1.1rem; margin-bottom: var(--space-xs); }

p {
    margin-bottom: var(--space-sm);
}

ul {
    list-style: none;
}

/* --- Links — always underlined (accessibility, no color-only signifiers) --- */
a {
    color: var(--amber-muted);
    text-decoration: underline;
    text-underline-offset: 0.15em;
    transition: color 0.2s ease;
}

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

.text-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.btn {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    padding: var(--space-sm) var(--space-lg);
    border: 1px solid var(--brown-mid);
    color: var(--brown-mid);
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
    background-color: var(--brown-mid);
    color: var(--white);
}

/* --- Layout --- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    width: 100%;
    padding: var(--space-2xl) 0;
}


/* ==========================================================================
   Header
   ========================================================================== */
header {
    background-color: var(--white);
    padding: var(--space-md) 0;
    color: var(--black);
    font-family: var(--font-mono);
}

header img {
    max-width: 40px;
    vertical-align: middle;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--black);
    font-size: 0.9rem;
}

.header-brand:hover {
    color: var(--black);
}

.header-nav {
    display: flex;
    gap: var(--space-lg);
}

.header-nav a {
    color: var(--black);
    text-decoration: none;
    font-size: 0.85rem;
}

.header-nav a:hover {
    text-decoration: underline;
}


/* ==========================================================================
   Block 1: Hero — Identity + Hook
   ========================================================================== */
.hero {
    padding: var(--space-3xl) 0;
    background-color: var(--beige);
}

.hero-content {
    max-width: var(--content-width);
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--brown-warm);
    margin-bottom: var(--space-lg);
}

.hero-hook {
    font-size: 1.3rem;
    line-height: 1.5;
    color: var(--brown-mid);
}

.hero-tagline {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--brown-warm);
    margin-top: var(--space-sm);
}


/* ==========================================================================
   Block 2: Story — compact narrative
   ========================================================================== */
.story {
    background-color: var(--white);
    padding: var(--space-2xl) 0;
}

.story-content {
    max-width: var(--content-width);
}

.story-content p:last-child {
    margin-bottom: 0;
}


/* ==========================================================================
   Block 3: Situations — "When I'm useful" 2x2 grid
   ========================================================================== */
.situations {
    background-color: var(--beige);
    padding: var(--space-2xl) 0;
}

.situations h2 {
    margin-bottom: var(--space-sm);
}

.situations-intro {
    max-width: var(--content-width);
    margin-bottom: var(--space-lg);
}

.situations-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.situation-card {
    background-color: var(--white);
    padding: var(--space-lg);
}

.situation-card h3 {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.situation-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
}


/* ==========================================================================
   Block 4: Testimonials — pull-quote style
   ========================================================================== */
.testimonials {
    background-color: var(--white);
    padding: var(--space-2xl) 0;
}

.testimonial {
    max-width: var(--content-width);
    border-left: 3px solid var(--brown-warm);
    padding-left: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.testimonial:last-child {
    margin-bottom: 0;
}

.testimonial p {
    font-size: 1.15rem;
    font-style: italic;
    line-height: 1.6;
}

.testimonial cite {
    font-style: normal;
    font-size: 0.9rem;
    color: var(--brown-warm);
}


/* ==========================================================================
   Block 5: Journey Compact — "The short version"
   ========================================================================== */
.journey-compact {
    background-color: var(--beige);
    padding: var(--space-2xl) 0;
}

.journey-compact-content {
    max-width: var(--content-width);
}

.journey-compact-content h2 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.journey-compact-content p {
    margin-bottom: var(--space-sm);
}


/* ==========================================================================
   Block 6: Clients — logo row
   ========================================================================== */
.clients {
    background-color: var(--white);
    padding: var(--space-2xl) 0;
    text-align: center;
}

.clients-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--brown-warm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xl);
}

.clients-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl) var(--space-2xl);
}

.client-logo {
    height: 28px;
    width: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.5;
    transition: opacity 0.2s ease;
}

.client-logo:hover {
    opacity: 0.8;
}

.clients-label-secondary {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.clients-grid-secondary .client-logo {
    height: 22px;
    opacity: 0.4;
}


/* ==========================================================================
   Block 7: Coffee CTA — the invitation
   ========================================================================== */
.coffee-cta {
    background-color: var(--beige);
    padding: var(--space-2xl) 0;
}

.coffee-cta-content {
    max-width: var(--content-width);
}

.coffee-cta-content h2 {
    margin-bottom: var(--space-sm);
}

.coffee-cta-content .btn {
    margin-top: var(--space-sm);
}


/* ==========================================================================
   Block 8: Feldstudie Bridge — dark tonal shift
   ========================================================================== */
.feldstudie-bridge {
    background-color: var(--brown-deep);
    color: var(--beige-light);
    padding: var(--space-2xl) 0;
}

.feldstudie-bridge-content {
    max-width: var(--content-width);
}

.feldstudie-bridge h2 {
    color: var(--white);
}

.feldstudie-bridge p {
    color: var(--beige);
}

.feldstudie-bridge a {
    color: var(--gold);
}

.feldstudie-bridge a:hover {
    color: var(--white);
}


/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    background-color: var(--brown-dark);
    padding: var(--space-2xl) 0 var(--space-lg);
    color: var(--white);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-xl);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer-brand img {
    max-width: 50px;
}

.footer-name {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--white);
    margin-bottom: 2px;
}

.footer-location {
    font-size: 0.8rem;
    color: var(--gray);
}

.footer-links {
    display: flex;
    gap: var(--space-xl);
}

.footer-column ul li {
    margin-bottom: var(--space-xs);
}

.footer-column ul li a {
    color: var(--white);
    font-size: 0.85rem;
    text-decoration: none;
}

.footer-column ul li a:hover {
    color: var(--gold);
}

.copyright {
    margin-top: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--gray);
    font-size: 0.8rem;
}


/* ==========================================================================
   Legal Pages (Impressum, Privacy)
   ========================================================================== */
.legal-page {
    background-color: var(--white);
    padding: var(--space-3xl) 0 var(--space-2xl);
}

.legal-content {
    max-width: var(--content-width);
}

.legal-content h1 {
    margin-bottom: var(--space-xs);
}

.legal-content h2 {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--beige);
}

.legal-content h3 {
    margin-top: var(--space-lg);
}

.legal-content ul {
    list-style: disc;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
}

.legal-content ul li {
    margin-bottom: var(--space-xs);
    font-size: 0.95rem;
}

.legal-meta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--brown-warm);
}


/* ==========================================================================
   Journey Page
   ========================================================================== */

/* --- Intro --- */
.journey-intro {
    padding: var(--space-3xl) 0 var(--space-2xl);
    background-color: var(--beige);
}

.journey-intro-content {
    max-width: var(--content-width);
}

.journey-intro-content h1 {
    margin-bottom: var(--space-md);
}

.journey-intro-content p:last-child {
    margin-bottom: 0;
}

/* --- Chapter blocks --- */
.journey-chapter {
    padding: var(--space-2xl) 0;
}

.journey-chapter.bg-white {
    background-color: var(--white);
}

.journey-chapter.bg-beige {
    background-color: var(--beige);
}

.journey-chapter-content {
    max-width: var(--content-width);
}

.journey-chapter-content p:last-child {
    margin-bottom: 0;
}

/* Chapter marker — company + years */
.chapter-marker {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--brown-warm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
}

.journey-chapter-content h2 {
    margin-bottom: var(--space-md);
}

/* Internal dividers within long chapters */
.journey-chapter-content hr {
    border: none;
    border-top: 1px solid var(--beige);
    margin: var(--space-lg) 0;
}

.journey-chapter.bg-beige .journey-chapter-content hr {
    border-top-color: var(--brown-warm);
    opacity: 0.2;
}

/* --- Journey Coffee CTA --- */
.journey-coffee {
    background-color: var(--white);
    padding: var(--space-2xl) 0;
}

.journey-coffee-content {
    max-width: var(--content-width);
}

.journey-coffee-content h2 {
    margin-bottom: var(--space-sm);
}

.journey-coffee-content .btn {
    margin-top: var(--space-sm);
}


/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.25rem; }

    .situations-grid {
        grid-template-columns: 1fr;
    }

    .clients-grid {
        gap: var(--space-lg) var(--space-xl);
    }

    .client-logo {
        height: 22px;
    }

    .footer-inner {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .footer-links {
        gap: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .header-brand span { display: none; }
    .header-nav { gap: var(--space-sm); }
}


/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition: none !important;
        animation: none !important;
    }
}