/* ============================================
   Tenortis AI – Design System & Global Styles
   ============================================ */

/* --- CSS Reset (Modern) --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}


/* --- Design Tokens --- */
:root {
    /* Colors */
    --color-bg-primary: #0A0A0A;
    --color-bg-secondary: #111111;
    --color-bg-elevated: #1A1A1A;
    --color-accent: #B87333;
    --color-accent-hover: #D4945A;
    --color-accent-muted: rgba(184, 115, 51, 0.12);
    --color-accent-glow: rgba(184, 115, 51, 0.25);
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #6B7280;
    --color-text-muted: #9CA3AF;
    --color-border: #1F2937;
    --color-border-subtle: rgba(255, 255, 255, 0.06);

    /* Typography */
    --font-heading: 'Archivo', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'Roboto Mono', monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    --ls-brand: 0.15em;
    --ls-wide: 0.05em;
    --ls-label: 0.08em;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --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;

    /* Layout */
    --max-width: 1200px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Transitions */
    --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.3s var(--ease-out);
}


/* --- Base --- */
body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

::selection {
    background: var(--color-accent);
    color: var(--color-text-primary);
}


/* ============================================
   Navigation
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-subtle);
    transition: var(--transition);
}

.site-header.scrolled {
    padding: var(--space-3) 0;
    background: rgba(10, 10, 10, 0.95);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Brand Icon – 3D Canvas Container */
.brand-icon-3d {
    position: relative;
    width: 36px;
    height: 36px;
    overflow: visible;
}

.brand-icon-3d canvas {
    display: block;
    outline: none;
}

.brand-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: var(--text-lg);
    letter-spacing: var(--ls-brand);
    color: var(--color-text-primary);
}

.brand-text--small {
    font-size: var(--text-base);
}

.brand-ai {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-links a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: var(--ls-wide);
    transition: color 0.2s var(--ease-out);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s var(--ease-out);
}

.nav-links a:hover {
    color: var(--color-text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: var(--space-2) var(--space-6) !important;
    background: var(--color-accent);
    color: var(--color-text-primary) !important;
    border-radius: var(--radius-sm);
    transition: var(--transition) !important;
}

.nav-cta:hover {
    background: var(--color-accent-hover) !important;
    transform: translateY(-1px);
}

.nav-cta::after {
    display: none !important;
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}


/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-8);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: var(--ls-wide);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-text-primary);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(184, 115, 51, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}


/* ============================================
   Section Styles
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}


/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: var(--space-32) var(--space-6) var(--space-16);
}

/* tsParticles Background */
.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    margin-bottom: var(--space-6);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--ease-out) 0.2s forwards;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: var(--text-6xl);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-8);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--ease-out) 0.4s forwards;
}

.hero-accent {
    color: var(--color-accent);
    position: relative;
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto var(--space-10);
    line-height: 1.8;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--ease-out) 0.6s forwards;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-16);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--ease-out) 0.8s forwards;
}

/* Hero Stats Bar */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    padding: var(--space-6) var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s var(--ease-out) 1s forwards;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 800;
    color: var(--color-accent);
    letter-spacing: var(--ls-wide);
}

.stat-label {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    margin-top: var(--space-1);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}


/* ============================================
   Services Section
   ============================================ */
/* ============================================
   Network Showcase Section
   ============================================ */
.network-showcase {
    padding: var(--space-24) 0 var(--space-16);
}

.network-canvas-wrapper {
    position: relative;
    width: 100%;
    height: 420px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.network-canvas-wrapper canvas {
    width: 100%;
    height: 100%;
    cursor: crosshair;
}


/* ============================================
   Services Section
   ============================================ */
.services {
    padding: var(--space-32) 0;
    background: var(--color-bg-secondary);
}

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

/* 5-card layout: 3 top (each 2 cols), 2 bottom centered */
.services-grid .service-card {
    width: 100%;
    grid-column: span 2;
}

.services-grid .service-card:nth-child(4) {
    grid-column: 2 / 4;
}

.services-grid .service-card:nth-child(5) {
    grid-column: 4 / 6;
}

.service-card--accent {
    border-color: rgba(184, 115, 51, 0.2);
    background: linear-gradient(135deg, var(--color-bg-primary), rgba(184, 115, 51, 0.04));
}

.service-card {
    padding: var(--space-10);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.4s var(--ease-out);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(184, 115, 51, 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 30px var(--color-accent-muted);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-muted);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    margin-bottom: var(--space-6);
}

.service-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.service-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.service-tag {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-accent);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-accent-muted);
    border-radius: var(--radius-sm);
}


/* ============================================
   Approach Section
   ============================================ */
.approach {
    padding: var(--space-32) 0;
}

.approach-grid {
    display: flex;
    align-items: flex-start;
    gap: 0;
}

.approach-step {
    flex: 1;
    text-align: center;
    padding: var(--space-8);
}

.step-number {
    font-family: var(--font-heading);
    font-size: var(--text-5xl);
    font-weight: 800;
    color: var(--color-accent-glow);
    line-height: 1;
    margin-bottom: var(--space-4);
    transition: color 0.3s var(--ease-out);
}

.approach-step:hover .step-number {
    color: var(--color-accent);
}

.step-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.step-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
}

.approach-connector {
    flex-shrink: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-border), var(--color-accent), var(--color-border));
    margin-top: 72px;
}


/* ============================================
   Investment Section
   ============================================ */
.investment {
    padding: var(--space-32) 0;
}

.investment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.investment-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.investment-card--accent {
    border-color: rgba(184, 115, 51, 0.2);
    background: linear-gradient(135deg, var(--color-bg-primary), rgba(184, 115, 51, 0.04));
    position: relative;
    overflow: hidden;
}

.investment-card--accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
}

.investment-card:hover {
    transform: translateY(-4px);
    border-color: rgba(184, 115, 51, 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2), 0 0 20px var(--color-accent-muted);
}

.investment-budget {
    font-family: var(--font-mono);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

.investment-title {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 800;
    margin-bottom: var(--space-3);
    line-height: 1.2;
}

.investment-desc {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-8);
    flex-grow: 1;
}

.investment-examples {
    border-top: 1px solid var(--color-border-subtle);
    padding-top: var(--space-4);
    margin-top: auto;
}

.investment-examples-title {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-label);
    margin-bottom: var(--space-4);
}

.investment-examples ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.investment-examples li {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    line-height: 1.5;
}

.investment-examples li::before {
    content: '◆';
    color: var(--color-accent);
    font-size: 0.8em;
    margin-top: 3px;
}

.investment-funding {
    margin-top: var(--space-12);
    padding: var(--space-6) var(--space-8);
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    transition: var(--transition);
}

.investment-funding:hover {
    border-color: var(--color-accent-muted);
    background: rgba(255, 255, 255, 0.03);
}

.funding-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.funding-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.6;
}

.funding-text strong {
    color: var(--color-text-primary);
    display: block;
    margin-bottom: var(--space-1);
    font-size: var(--text-base);
}

/* ============================================
   Insights / Expertise Section
   ============================================ */
.insights {
    padding: var(--space-32) 0;
    background: var(--color-bg-primary);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.insight-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.insight-card:hover {
    transform: translateY(-4px);
    border-color: rgba(184, 115, 51, 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.insight-meta {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-accent);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: var(--ls-label);
}

.insight-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    line-height: 1.3;
}

.insight-excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-6);
    flex-grow: 1;
}

.insight-link {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: var(--transition);
    margin-top: auto;
}

.insight-link::after {
    content: '→';
    color: var(--color-accent);
    transition: transform 0.3s var(--ease-out);
}

.insight-card:hover .insight-link::after {
    transform: translateX(4px);
}

/* ============================================
   Article / Blog Post Layout
   ============================================ */
.article-page {
    background: var(--color-bg-primary);
    padding-top: 80px; /* offset for header */
}

.article-header {
    padding: var(--space-20) 0 var(--space-16);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.article-meta {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: var(--ls-label);
}

.article-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    max-width: 900px;
    margin: 0 auto var(--space-6);
    letter-spacing: -0.02em;
}

.article-author {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-16) var(--space-6);
}

.article-content {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--color-text-muted);
}

.article-content h2 {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-text-primary);
    margin: var(--space-12) 0 var(--space-6);
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.article-content h3 {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin: var(--space-8) 0 var(--space-4);
}

.article-content p {
    margin-bottom: var(--space-6);
}

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

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

.article-content ul li::marker {
    color: var(--color-accent);
}

.article-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-6);
    margin: var(--space-8) 0;
    font-style: italic;
    color: var(--color-text-primary);
    background: rgba(184, 115, 51, 0.05);
    padding: var(--space-6);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-content strong {
    color: var(--color-text-primary);
}

.article-nav {
    margin-top: var(--space-16);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
}

.article-back-link {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: var(--transition);
}

.article-back-link:hover {
    color: var(--color-accent-hover);
    transform: translateX(-4px);
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: var(--space-32) 0;
    background: var(--color-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-content .section-label {
    text-align: left;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    font-size: var(--text-base);
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.about-text strong {
    color: var(--color-text-primary);
}

.about-text em {
    color: var(--color-accent);
    font-style: normal;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
}

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

.value-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
}

.value-icon {
    color: var(--color-accent);
    font-size: var(--text-xs);
}

/* Merge Symbol Visual */
.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.merge-symbol-3d {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.merge-symbol-3d canvas {
    display: block;
    outline: none;
    cursor: grab;
}

.merge-symbol-3d canvas:active {
    cursor: grabbing;
}


/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: var(--space-32) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group--full {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    box-sizing: border-box;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: var(--text-sm);
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-secondary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-muted);
}

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

.contact-form .btn {
    grid-column: 1 / -1;
    justify-self: start;
}

.info-card {
    padding: var(--space-8);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.info-card h3 {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.info-card p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.info-link {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent);
    transition: color 0.2s var(--ease-out);
}

.info-link:hover {
    color: var(--color-accent-hover);
}


/* ============================================
   Footer
   ============================================ */
.site-footer {
    padding: var(--space-16) 0 var(--space-8);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-12);
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
}

.footer-nav {
    display: flex;
    gap: var(--space-8);
}

.footer-nav a {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: color 0.2s var(--ease-out);
}

.footer-nav a:hover {
    color: var(--color-text-primary);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border-subtle);
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}

.footer-legal {
    display: flex;
    gap: var(--space-6);
}

.footer-legal a {
    color: var(--color-text-secondary);
    transition: color 0.2s var(--ease-out);
}

.footer-legal a:hover {
    color: var(--color-text-primary);
}


/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll-triggered reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}


/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .about-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --text-6xl: 2.5rem;
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
    }

    /* Mobile Navigation */
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        background: var(--color-bg-elevated);
        padding: var(--space-24) var(--space-8);
        gap: var(--space-6);
        transform: translateX(100%);
        transition: transform 0.3s var(--ease-out);
        border-left: 1px solid var(--color-border);
    }

    .nav-links.open {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

    /* Sections */
    .hero {
        padding: var(--space-24) var(--space-6) var(--space-12);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

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

    .services-grid .service-card,
    .services-grid .service-card:nth-child(4),
    .services-grid .service-card:nth-child(5) {
        grid-column: auto;
    }

    .approach-grid {
        flex-direction: column;
        gap: var(--space-4);
    }

    .approach-connector {
        width: 2px;
        height: 40px;
        margin: 0 auto;
        background: linear-gradient(180deg, var(--color-border), var(--color-accent), var(--color-border));
    }

    .contact-grid {
        display: flex;
        flex-direction: column-reverse;
        gap: var(--space-12);
        align-items: stretch;
    }

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

    .contact-form .btn {
        width: 100%;
        text-align: center;
    }

    .footer-grid {
        flex-direction: column;
        gap: var(--space-6);
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --text-6xl: 2rem;
        --text-5xl: 1.75rem;
    }

    .container {
        padding: 0 var(--space-4);
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .service-card {
        padding: var(--space-6);
    }
}

/* ============================================
   Modals (Impressum & Privacy)
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s var(--ease-out);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.modal-container {
    position: relative;
    width: 100%;
    max-width: 650px;
    max-height: 85vh;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: translateY(20px) scale(0.95);
    transition: all 0.4s var(--ease-out);
}

.modal.active .modal-container {
    transform: translateY(0) scale(1);
}

.modal-header {
    padding: var(--space-6) var(--space-8);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 800;
    letter-spacing: -0.01em;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-text-muted);
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--color-accent);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--space-8);
    overflow-y: auto;
    font-size: var(--text-sm);
    line-height: 1.8;
}

.legal-section {
    margin-bottom: var(--space-8);
}

.legal-section h3 {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--ls-label);
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

.legal-section p {
    color: var(--color-text-muted);
}

.legal-section a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 4px;
}

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

/* Custom Scrollbar for Modal Body */
.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 10px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-secondary);
}

/* ============================================
   Contact Person Card (Martin Zimmermann)
   ============================================ */
.person-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    height: 100%;
    transition: var(--transition);
}

.person-card:hover {
    border-color: var(--color-accent-muted);
    background: rgba(255, 255, 255, 0.03);
}

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

.person-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--color-accent-muted);
    flex-shrink: 0;
}

.person-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.person-meta h3 {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 2px;
}

.person-role {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: var(--ls-label);
}

.person-quote {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: var(--space-6);
    position: relative;
    padding-left: var(--space-4);
    border-left: 2px solid var(--color-accent-muted);
}

.person-email {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 600;
    color: var(--color-accent);
    transition: var(--transition);
}

.person-email svg {
    flex-shrink: 0;
}

.person-email:hover {
    color: var(--color-accent-hover);
    transform: translateX(4px);
}