/* ================================
   ERIK UNGER PORTFOLIO
   Minimalist Design with Navy Accent
   ================================ */

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

:root {
    /* Colors */
    --color-bg: #0a0a0a;
    --color-surface: #141414;
    --color-text: #ffffff;
    --color-text-secondary: #a3a3a3;
    --color-text-muted: #737373;
    --color-border: #262626;

    /* Navy Accent */
    --color-accent: #1e40af;
    --color-accent-light: #3b82f6;
    --color-accent-dark: #1e3a8a;

    /* Typography */
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --container-width: 1200px;
    --section-spacing: 80px;

    /* Effects */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 60px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }
}

/* ================================
   NAVIGATION
   ================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 24px 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.nav.scrolled {
    background: rgba(10, 10, 10, 0.95);
    border-bottom-color: var(--color-border);
}

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

.nav-logo {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

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

.logo-img {
    height: 40px;
    width: auto;
    transition: var(--transition);
    filter: brightness(0) invert(1);
}

.logo-img:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 48px;
    align-items: center;
}

.nav-menu a {
    position: relative;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

.nav-menu a:hover, .nav-menu a:focus-within,
.nav-menu a.active {
    color: var(--color-text);
}

.nav-menu a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.nav-toggle.active span:first-child {
    transform: rotate(45deg) translate(7px, 7px);
}

.nav-toggle.active span:last-child {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ================================
   HERO SECTION
   ================================ */

.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
}

.hero-content {
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 50px;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--color-text-secondary);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 0 0 var(--color-accent);
    }
    50% {
        opacity: 0.8;
        box-shadow: 0 0 0 8px rgba(30, 64, 175, 0);
    }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(48px, 7vw, 72px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 32px;
}

.hero-title .line {
    display: block;
}

.hero-title .accent {
    color: var(--color-accent-light);
}

.hero-description {
    font-size: 20px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin-bottom: 48px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ================================
   BUTTONS
   ================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.btn-primary:hover, 
.btn-primary:focus-within {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(30, 64, 175, 0.3);
}

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

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

/* ================================
   QUICK LINKS
   ================================ */

.quick-links {
    padding: var(--section-spacing) 0;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.link-card {
    position: relative;
    padding: 40px 32px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    text-decoration: none;
    transition: var(--transition-slow);
    overflow: hidden;
}

.link-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.link-card:hover::before {
    opacity: 1;
}

.link-card:hover,
.link-card:focus-within {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}


.card-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.card-description {
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.card-arrow {
    font-size: 45px;
    color: var(--color-accent);
    transition: var(--transition);
    display: block;
    text-align: center;
    margin-top: 8px;
}


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

/* ================================
   PAGE HEADER
   ================================ */

.page-header {
    padding: 140px 0 60px;
}

.header-content {
    max-width: 800px;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.page-title {
    font-family: var(--font-heading);
    font-size: clamp(40px, 6vw, 56px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.page-subtitle {
    font-size: 20px;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* ================================
   ABOUT SECTION
   ================================ */

.about-section {
    padding: 0 0 var(--section-spacing) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 80px;
}

.about-main {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.text-block {
    opacity: 0;
    transform: translateY(20px);
}

.text-large {
    font-size: 24px;
    line-height: 1.6;
    font-weight: 500;
    color: var(--color-text);
}

.text-block p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.principles {
    margin-top: 20px;
}

.principles-title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
}

.principles-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.principles-list li {
    position: relative;
    padding-left: 28px;
    font-size: 16px;
    color: var(--color-text-secondary);
}

.principles-list li::before {
    content: '»';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 30px; /* nach Bedarf anpassen */
    line-height: 0.7;  /* optional, für Ausrichtung */
}


.about-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.info-card,
.skills-card {
    padding: 32px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.card-heading {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
}

.info-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.info-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-value {
    font-size: 16px;
    color: var(--color-text);
    font-weight: 500;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    padding: 8px 16px;
    background: rgba(30, 64, 175, 0.1);
    border: 1px solid rgba(30, 64, 175, 0.2);
    border-radius: 6px;
    font-size: 13px;
    color: var(--color-accent-light);
    font-weight: 500;
    transition: var(--transition);
}

.skill-tag:hover, .skill-tag:focus-within {
    background: rgba(30, 64, 175, 0.2);
    border-color: var(--color-accent);
}

/* ================================
   PROJECTS SECTION
   ================================ */

.projects-section {
    padding: 0 0 var(--section-spacing) 0;
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.project-item {
    padding: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: var(--transition-slow);
    opacity: 0;
    transform: translateY(20px);
}

.project-item:hover,
.project-item:focus-within {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}


.project-item.featured {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.05) 0%, var(--color-surface) 100%);
    border-color: rgba(30, 64, 175, 0.3);
}

.project-header {
    margin-bottom: 20px;
}

.project-meta {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
}

.project-tag {
    padding: 6px 12px;
    background: var(--color-accent);
    color: var(--color-text);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
}

.project-year {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.project-title {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    color: var(--color-text);
}

.project-description {
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

.project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.stack-item {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
    transition: var(--transition);
}

.stack-item:hover, .stack-item:focus-within {
    border-color: var(--color-accent);
    color: var(--color-accent-light);
}

/* ================================
   CTA SECTION
   ================================ */

.cta-section {
    padding: var(--section-spacing) 0;
    background: var(--color-surface);
}

.cta-content {
    max-width: 700px;
    text-align: center;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-heading);
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.cta-description {
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

/* ================================
   FOOTER
   ================================ */

.footer {
    padding: 60px 0 40px;
    border-top: 1px solid var(--color-border);
}

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

.footer-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
}

.footer-logo-img {
    height: 28px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-location {
    font-size: 14px;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    font-size: 14px;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-accent-light);
}

/* ================================
   ANIMATIONS
   ================================ */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================
   RESPONSIVE
   ================================ */

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-spacing: 60px;
    }

    .logo-img {
        height: 32px;
    }

    .footer-logo-img {
        height: 24px;
    }

    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: 40px 24px;
        gap: 24px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        border-bottom: 1px solid var(--color-border);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
        min-height: 85vh;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .page-header {
        padding: 120px 0 40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

    .hero-title {
        font-size: 36px;
    }

    .page-title {
        font-size: 32px;
    }
}

@media (min-width: 1440px) {
  .container {
    max-width: 1400px;
  }
  .links-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  }
}


/* ================================
   IMPRESSUM MODAL
   ================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 48px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 32px;
    font-weight: 300;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-title {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--color-text);
}

.impressum-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.impressum-text p {
    margin-bottom: 16px;
}

.impressum-text strong {
    color: var(--color-text);
    font-weight: 600;
}

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

.impressum-text a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* Responsive Modal */
@media (max-width: 768px) {
    .modal-content {
        padding: 32px 24px;
        width: 95%;
        max-height: 85vh;
    }

    .modal-title {
        font-size: 24px;
        margin-bottom: 24px;
    }

    .modal-close {
        top: 16px;
        right: 16px;
    }
}

@media (max-width: 480px) {
    .modal-content {
        padding: 24px 20px;
    }

    .impressum-text {
        font-size: 14px;
    }
}