/* ========================================
   RAUM03 - BRUTALIST MINIMAL PORTFOLIO
   ======================================== */

/* ========================================
   CSS VARIABLES & RESET
   ======================================== */
   :root {
    /* Colors */
    --color-bg: #fafaf8;
    --color-text: #0a0a0a;
    --color-accent: #d0ff00;
    --color-border: rgba(10, 10, 10, 0.1);
    --color-hover: rgba(10, 10, 10, 0.05);
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: clamp(0.5rem, 1vw, 1rem);
    --spacing-sm: clamp(1rem, 2vw, 1.5rem);
    --spacing-md: clamp(2rem, 4vw, 3rem);
    --spacing-lg: clamp(3rem, 6vw, 5rem);
    --spacing-xl: clamp(5rem, 10vw, 8rem);
    
    /* Layout */
    --container-max: 1400px;
    --header-height: 80px;
    
    /* Animation */
    --transition-speed: 0.3s;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
    position: relative;
}

/* Background grid overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.3;
}

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

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* ========================================
   UTILITIES
   ======================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
    position: relative;
    z-index: 1;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: background var(--transition-speed) var(--ease);
}

.header.scrolled {
    background: rgba(250, 250, 248, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.logo {
    height: 32px;
    width: auto;
    transition: transform var(--transition-speed) var(--ease);
}

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

.nav-desktop {
    display: flex;
    gap: var(--spacing-md);
}

.nav-desktop a {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    transition: opacity var(--transition-speed) var(--ease);
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.lang-toggle {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 50px;
    transition: all var(--transition-speed) var(--ease);
}

.lang-toggle:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    padding: 0;
}

.hamburger span {
    width: 100%;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-speed) var(--ease);
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translateY(8px);
}

.hamburger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.hamburger[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translateY(-8px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--color-bg);
    transform: translateX(100%);
    transition: transform var(--transition-speed) var(--ease);
    display: none;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-md);
}

.mobile-nav a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
}

/* ========================================
   BLUR BLOB DECORATION
   ======================================== */
.blur-blob {
    position: fixed;
    width: clamp(300px, 40vw, 600px);
    height: clamp(300px, 40vw, 600px);
    background: radial-gradient(circle, rgba(208, 255, 0, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
    z-index: 0;
    top: 10%;
    right: 10%;
    will-change: transform;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
    z-index: 1;
}

.hero-content {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 12vw, 8rem);
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -0.04em;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    max-width: 600px;
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.hero-accent-logo {
    position: absolute;
    right: 0;
    bottom: -2rem;
    height: clamp(2.5rem, 5vw, 4rem);
    width: auto;
    opacity: 0.9;
    will-change: transform;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-email {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    position: relative;
}

.hero-email::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-text);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border: 2px solid var(--color-text);
    transition: all var(--transition-speed) var(--ease);
    position: relative;
    overflow: hidden;
}

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

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--color-accent);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s var(--ease), height 0.5s var(--ease);
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary span,
.btn-primary::after {
    position: relative;
    z-index: 1;
}

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

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

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

.about-text p {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    line-height: 1.8;
    max-width: 600px;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.stat-item {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(4rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.7;
    margin-top: 0.5rem;
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* ========================================
   SERVICES SECTION (BENTO GRID)
   ======================================== */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.bento-card {
    padding: var(--spacing-lg);
    border: 2px solid var(--color-border);
    background: rgba(10, 10, 10, 0.03);
    transition: all var(--transition-speed) var(--ease);
    position: relative;
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-hover);
    opacity: 0;
    transition: opacity var(--transition-speed) var(--ease);
}

.bento-card:hover {
    border-color: var(--color-text);
    transform: translateY(-4px);
}

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

.bento-featured {
    grid-column: span 2;
    border-color: var(--color-text);
}

.bento-card h3 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.bento-card p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.8;
    position: relative;
    z-index: 1;
    margin-bottom: var(--spacing-sm);
}

.service-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.service-tags span {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 1rem;
    border: 2px solid var(--color-accent);
    border-radius: 50px;
    background: transparent;
    transition: all var(--transition-speed) var(--ease);
}

.bento-card:hover .service-tags span {
    background: rgba(208, 255, 0, 0.1);
    border-color: var(--color-accent);
}

@media (max-width: 768px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }
    
    .bento-featured {
        grid-column: span 1;
    }
}

/* ========================================
   WORK SECTION
   ======================================== */
.work-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.work-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.work-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.work-card:nth-child(2) {
    transition-delay: 0.1s;
}

.work-card:nth-child(3) {
    transition-delay: 0.2s;
}

.work-image {
    aspect-ratio: 16/10;
    overflow: hidden;
    border: 2px solid var(--color-border);
    background: var(--color-hover);
}

.work-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

.work-card:hover .work-image img {
    transform: scale(1.05);
}

.work-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.work-desc {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.work-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.work-tags span {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 50px;
}

@media (max-width: 968px) {
    .work-card {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq-list {
    max-width: 900px;
}

.faq-item {
    border-bottom: 2px solid var(--color-border);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: opacity var(--transition-speed) var(--ease);
}

.faq-question:hover {
    opacity: 0.7;
}

.faq-icon {
    font-size: 2rem;
    line-height: 1;
    transition: transform var(--transition-speed) var(--ease);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.5s var(--ease), opacity 0.5s var(--ease), padding 0.5s var(--ease);
}

.faq-answer.active {
    max-height: 500px;
    opacity: 1;
    padding-bottom: var(--spacing-md);
}

.faq-answer p {
    font-size: 1.1rem;
    line-height: 1.7;
    opacity: 0.8;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-text {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.contact-cta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-email {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 500;
    position: relative;
}

.contact-email::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-text);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer p {
    font-size: 0.9rem;
    opacity: 0.6;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    font-size: 0.9rem;
    opacity: 0.6;
    transition: opacity var(--transition-speed) var(--ease);
}

.footer-links a:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* ========================================
   MODAL
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) var(--ease);
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    cursor: pointer;
}

.modal-content {
    position: relative;
    max-width: 600px;
    width: 90%;
    background: var(--color-bg);
    border: 2px solid var(--color-text);
    padding: var(--spacing-lg);
    z-index: 1;
}

.modal-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.modal-content p {
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.8;
}

.modal-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: 2rem;
    line-height: 1;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity var(--transition-speed) var(--ease);
}

.modal-close:hover {
    opacity: 0.6;
}

/* ========================================
   CUSTOM CURSOR (DESKTOP ONLY)
   ======================================== */
.custom-cursor {
    position: fixed;
    width: 24px;
    height: 24px;
    pointer-events: none;
    z-index: 10000;
    opacity: 0;
    transition: opacity var(--transition-speed) var(--ease);
    color: var(--color-text);
}

.custom-cursor svg {
    width: 100%;
    height: 100%;
}

@media (pointer: fine) {
    .btn-primary:hover ~ .custom-cursor,
    .btn-primary:hover + * .custom-cursor {
        opacity: 1;
    }
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* ========================================
   RESPONSIVE REFINEMENTS
   ======================================== */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-accent-logo {
        position: static;
        display: block;
        margin-top: var(--spacing-sm);
    }
}