/* ============================================================
   KAYSER CMS v1.0
   Main Stylesheet
   Design: OpenAI / Apple / Perplexity style
   ============================================================ */

/* ============================================================
   FONTS
   ============================================================ */
/* ============================================================
   FONTS — lokal (kein Google, kein externer Request)
   ============================================================ */
/* Source Sans 3 — Fließtext + Navigation */
@font-face {
    font-family: 'Source Sans 3';
    font-style: normal; font-weight: 300; font-display: swap;
    src: url('../fonts/source-sans-3-v19-latin-300.woff2') format('woff2');
}
@font-face {
    font-family: 'Source Sans 3';
    font-style: normal; font-weight: 400; font-display: swap;
    src: url('../fonts/source-sans-3-v19-latin-400.woff2') format('woff2');
}
@font-face {
    font-family: 'Source Sans 3';
    font-style: normal; font-weight: 500; font-display: swap;
    src: url('../fonts/source-sans-3-v19-latin-500.woff2') format('woff2');
}
@font-face {
    font-family: 'Source Sans 3';
    font-style: normal; font-weight: 600; font-display: swap;
    src: url('../fonts/source-sans-3-v19-latin-600.woff2') format('woff2');
}
/* Playfair Display — Überschriften */
@font-face {
    font-family: 'Playfair Display';
    font-style: normal; font-weight: 700; font-display: swap;
    src: url('../fonts/playfair-display-v40-latin-700.woff2') format('woff2');
}
@font-face {
    font-family: 'Playfair Display';
    font-style: italic; font-weight: 700; font-display: swap;
    src: url('../fonts/playfair-display-v40-latin-700italic.woff2') format('woff2');
}
@font-face {
    font-family: 'Playfair Display';
    font-style: normal; font-weight: 900; font-display: swap;
    src: url('../fonts/playfair-display-v40-latin-900.woff2') format('woff2');
}

/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
    --color-bg:        #FFFFFF;
    --color-page:      #F6F5F1;
    --color-text:      #111111;
    --color-gray-100:  #F5F5F5;
    --color-gray-200:  #EBEBEB;
    --color-gray-300:  #E7E7E7;
    --color-gray-400:  #C5C5C5;
    --color-gray-500:  #999999;
    --color-gray-600:  #666666;
    --color-gray-700:  #444444;
    --color-accent:    #0A84FF;
    --color-accent-hover: #2563EB;
    --color-dark:      #0A0A0A;

    --font-family:     'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading:    'Playfair Display', Georgia, 'Times New Roman', serif;

    --font-xs:    0.75rem;
    --font-sm:    0.875rem;
    --font-base:  1rem;
    --font-md:    1.125rem;
    --font-lg:    1.25rem;
    --font-xl:    1.5rem;
    --font-2xl:   2rem;
    --font-3xl:   2.5rem;
    --font-4xl:   3.5rem;
    --font-5xl:   4.5rem;

    --space-1:   0.25rem;
    --space-2:   0.5rem;
    --space-3:   0.75rem;
    --space-4:   1rem;
    --space-5:   1.25rem;
    --space-6:   1.5rem;
    --space-8:   2rem;
    --space-10:  2.5rem;
    --space-12:  3rem;
    --space-16:  4rem;
    --space-20:  5rem;
    --space-24:  6rem;
    --space-32:  8rem;

    --radius-sm:  4px;
    --radius-md:  8px;
    --radius-lg:  12px;
    --radius-xl:  16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg:  0 8px 32px rgba(0,0,0,0.10);

    --max-width: 1200px;
    --content-width: 760px;

    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

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

ul, ol { list-style: none; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--color-dark);
}

h1 { font-size: clamp(2.2rem, 5vw, var(--font-5xl)); }
h2 { font-size: clamp(1.8rem, 4vw, var(--font-4xl)); }
h3 { font-size: clamp(1.3rem, 3vw, var(--font-2xl)); }
h4 { font-size: var(--font-xl); }
h5 { font-size: var(--font-lg); }
h6 { font-size: var(--font-md); }

p { margin-bottom: var(--space-4); }
p:last-child { margin-bottom: 0; }

strong { font-weight: 600; }

.lead {
    font-size: var(--font-lg);
    color: var(--color-gray-600);
    line-height: 1.6;
    font-weight: 400;
}

.label {
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-gray-500);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container--narrow {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-8) 0;
}

/* Erste Section direkt nach dem Seitenkopf: oben enger */
.page-header + .section {
    padding-top: var(--space-8);
}

.section--gray {
    background-color: var(--color-gray-100);
}

.section--dark {
    background-color: var(--color-dark);
    color: #FFFFFF;
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
    color: #FFFFFF;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .container { padding: 0 var(--space-4); }
    .section { padding: var(--space-6) 0; }
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-header h2 {
    margin-bottom: var(--space-4);
}

.section-header p {
    font-size: var(--font-lg);
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-family: var(--font-family);
    font-size: var(--font-base);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-dark);
    color: #FFFFFF;
}

.btn-primary:hover {
    background-color: var(--color-accent);
    color: #FFFFFF;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-dark);
    border: 1.5px solid var(--color-gray-300);
}

.btn-secondary:hover {
    border-color: var(--color-dark);
    color: var(--color-dark);
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--color-accent);
    color: #FFFFFF;
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    color: #FFFFFF;
    transform: translateY(-1px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-md);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-sm);
}

.btn-group {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(31,41,55,0.97);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.nav-logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    line-height: 1;
}

.nav-logo-main {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: #FFFFFF;
}

.nav-logo-sub {
    font-size: 0.6rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.55);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    list-style: none;
}

.nav-links a {
    font-size: var(--font-sm);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: #FFFFFF;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.05em;
    color: rgba(255,255,255,0.5);
}

.lang-switch a {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    padding-bottom: 3px;
    border-bottom: 2px solid transparent;
    opacity: 0.4;
    filter: grayscale(45%);
    transition: opacity var(--transition), filter var(--transition), border-color var(--transition);
}

.lang-switch a:hover {
    opacity: 0.8;
    filter: grayscale(0%);
}

.lang-switch a.active {
    opacity: 1;
    filter: grayscale(0%);
    border-bottom-color: var(--color-accent);
}

.lang-switch .flag {
    font-size: 1.25rem;
    line-height: 1;
}

.nav-mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-2);
    background: none;
    border: none;
}

.nav-mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #FFFFFF;
    border-radius: 2px;
    transition: all var(--transition);
}

/* CTA-Button in der dunklen Nav: Akzentblau, hebt sich ab */
.nav .nav-actions .btn-primary {
    background-color: var(--color-accent);
    color: #FFFFFF;
}
.nav .nav-actions .btn-primary:hover {
    background-color: #FFFFFF;
    color: var(--color-dark);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(31,41,55,0.98);
        border-bottom: 1px solid rgba(255,255,255,0.08);
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-4) var(--space-6);
        gap: 0;
    }

    .nav-links.open { display: flex; }

    .nav-links li a {
        display: block;
        padding: var(--space-3) 0;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        font-size: var(--font-base);
    }

    .nav-mobile-toggle { display: flex; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: var(--space-32) 0 var(--space-24);
    text-align: center;
    border-bottom: 1px solid var(--color-gray-300);
}

.hero-label {
    display: inline-block;
    margin-bottom: var(--space-6);
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-gray-500);
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    line-height: 1.0;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-4);
    color: var(--color-dark);
}

.hero-tagline {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-6);
}

.hero-description {
    font-size: clamp(1rem, 2vw, var(--font-lg));
    color: var(--color-gray-600);
    max-width: 520px;
    margin: 0 auto var(--space-10);
    line-height: 1.65;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
    background: var(--color-bg);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition);
}

.card:hover {
    border-color: var(--color-gray-400);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
    font-size: 1.5rem;
}

.card h3 {
    font-size: var(--font-lg);
    margin-bottom: var(--space-2);
}

.card p {
    color: var(--color-gray-600);
    font-size: var(--font-sm);
    line-height: 1.6;
}

.card-features {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-gray-100);
}

.card-features li {
    font-size: var(--font-sm);
    color: var(--color-gray-600);
    padding: var(--space-1) 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.card-features li::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ============================================================
   WHY SECTION
   ============================================================ */
.why-item {
    padding: var(--space-6) 0;
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    gap: var(--space-6);
    align-items: flex-start;
}

.why-item:last-child { border-bottom: none; }

.why-number {
    font-size: var(--font-sm);
    font-weight: 700;
    color: var(--color-accent);
    min-width: 32px;
    padding-top: 3px;
}

.why-content h4 {
    font-size: var(--font-md);
    margin-bottom: var(--space-2);
}

.why-content p {
    color: var(--color-gray-600);
    font-size: var(--font-sm);
    margin: 0;
}

/* ============================================================
   BLOG
   ============================================================ */
.article-card {
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--space-8) 0;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-6);
    align-items: start;
}

.article-card:first-child { padding-top: 0; }

.article-meta {
    font-size: var(--font-xs);
    color: var(--color-gray-500);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.article-card h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--space-3);
    line-height: 1.3;
}

.article-card h3 a {
    color: var(--color-text);
    text-decoration: none;
}

.article-card h3 a:hover { color: var(--color-accent); }

.article-card p {
    color: var(--color-gray-600);
    font-size: var(--font-sm);
}

.article-thumb {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-md);
    background: var(--color-gray-100);
    flex-shrink: 0;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-item {
    border-bottom: 1px solid var(--color-gray-200);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: var(--space-6) 0;
    background: none;
    border: none;
    font-family: var(--font-family);
    font-size: var(--font-md);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    transition: color var(--transition);
}

.faq-question:hover { color: var(--color-accent); }

.faq-icon {
    width: 20px;
    height: 20px;
    border: 1.5px solid var(--color-gray-300);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1rem;
    line-height: 1;
    transition: all var(--transition);
}

.faq-item.open .faq-icon {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    padding-bottom: var(--space-6);
    color: var(--color-gray-600);
    line-height: 1.7;
    font-size: var(--font-base);
}

.faq-item.open .faq-answer { display: block; }

/* ============================================================
   CONTACT FORM
   ============================================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--color-bg);
    border: 1.5px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-base);
    color: var(--color-text);
    transition: border-color var(--transition);
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-accent);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

.form-alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    font-size: var(--font-sm);
    margin-bottom: var(--space-5);
}

.form-alert--success {
    background: #F0FDF4;
    border: 1px solid #BBF7D0;
    color: #166534;
}

.form-alert--error {
    background: #FEF2F2;
    border: 1px solid #FECACA;
    color: #991B1B;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--color-dark);
    color: rgba(255,255,255,0.6);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .nav-logo-main { color: #FFFFFF; }
.footer-brand .nav-logo-sub  { color: rgba(255,255,255,0.4); }

.footer-brand p {
    margin-top: var(--space-4);
    font-size: var(--font-sm);
    line-height: 1.6;
}

.footer-col h4 {
    color: #FFFFFF;
    font-size: var(--font-sm);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-col ul a {
    font-size: var(--font-sm);
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-col ul a:hover { color: #FFFFFF; }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-xs);
    color: rgba(255,255,255,0.3);
    flex-wrap: wrap;
    gap: var(--space-4);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
    padding: var(--space-4) 0 var(--space-2);
    margin-bottom: 0;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--color-gray-500);
}

.breadcrumb-list a {
    color: var(--color-gray-500);
    text-decoration: none;
    transition: color var(--transition);
}

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

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.breadcrumb-list li::after {
    content: '›';
    font-size: 1.25rem;
    line-height: 1;
    color: var(--color-gray-400);
}

.breadcrumb-list li:last-child::after { display: none; }

.breadcrumb-list li:last-child {
    color: var(--color-text);
    font-weight: 600;
}

.breadcrumb-list li:last-child a {
    color: var(--color-text);
    pointer-events: none;
}

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header {
    padding: var(--space-2) 0 var(--space-6);
    border-bottom: 1px solid var(--color-gray-300);
    margin-bottom: var(--space-3);
}

.page-header h1 {
    margin-bottom: var(--space-4);
}

.page-header p {
    font-size: var(--font-lg);
    color: var(--color-gray-600);
    max-width: 560px;
}

/* ============================================================
   ARTICLE CONTENT
   ============================================================ */
.article-content h2 { font-size: var(--font-2xl); margin: var(--space-10) 0 var(--space-4); }
.article-content h3 { font-size: var(--font-xl);  margin: var(--space-8) 0 var(--space-3); }
.article-content p  { margin-bottom: var(--space-5); color: var(--color-gray-700); }

.article-content ul,
.article-content ol {
    margin: var(--space-5) 0;
    padding-left: var(--space-6);
}

.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }

.article-content li {
    margin-bottom: var(--space-2);
    color: var(--color-gray-700);
}

.article-content blockquote {
    border-left: 3px solid var(--color-accent);
    margin: var(--space-8) 0;
    padding: var(--space-4) var(--space-6);
    background: var(--color-gray-100);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-size: var(--font-md);
    color: var(--color-gray-700);
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-16);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2) var(--space-4);
    border: 1.5px solid var(--color-gray-300);
    border-radius: var(--radius-full);
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition);
}

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

.pagination .current {
    background: var(--color-text);
    border-color: var(--color-text);
    color: #FFFFFF;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.text-center { text-align: center; }
.text-muted   { color: var(--color-gray-500); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.hidden { display: none; }

.divider {
    height: 1px;
    background: var(--color-gray-300);
    margin: var(--space-8) 0;
}

/* ============================================================
   CASE STUDIES PREVIEW
   ============================================================ */
.case-study {
    background: var(--color-gray-100);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    border: 1px solid var(--color-gray-200);
}

.case-study-tag {
    display: inline-block;
    font-size: var(--font-xs);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-bio {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    align-items: start;
}

.about-avatar {
    width: 100%;
    aspect-ratio: 1;
    background: var(--color-gray-100);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--color-gray-400);
    border: 1px solid var(--color-gray-200);
}

.about-photo {
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-gray-200);
    display: block;
}

.about-credentials {
    margin-top: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.credential-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-sm);
    color: var(--color-gray-700);
}

.credential-dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .about-bio {
        grid-template-columns: 1fr;
    }
    .about-avatar {
        max-width: 200px;
    }
    .about-photo {
        max-width: 260px;
    }
}

/* ============================================================
   404
   ============================================================ */
.error-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-24) var(--space-6);
}

.error-code {
    font-size: 6rem;
    font-weight: 800;
    color: var(--color-gray-200);
    line-height: 1;
    margin-bottom: var(--space-4);
}