/* ===== DESIGN SYSTEM ===== */
:root {
    --primary-red: #DD0000;
    --dark-bg: #000000;
    --light-bg: #FAFAFA;
    --text-dark: #1A1A1A;
    --text-light: #FFFFFF;
    --text-gray: #666666;
    --text-light-gray: #999999;
    --border-light: #E5E5E5;
    --border-dark: #333333;
    --spacing-base: 16px;
    --spacing-lg: 80px;
    --max-width: 1280px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    background-color: var(--light-bg);
    line-height: 1.6;
}

/* ===== TYPOGRAPHY ===== */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Mono', monospace;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text-dark);
}

h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    text-transform: uppercase;
    line-height: 1.2;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 3rem);
    text-transform: uppercase;
    line-height: 1.2;
}

h3 {
    font-size: 1.25rem;
    text-transform: uppercase;
    line-height: 1.3;
}

p {
    font-size: 1rem;
    color: var(--text-gray);
    line-height: 1.8;
}

a {
    color: var(--primary-red);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

a:hover {
    opacity: 0.7;
    text-decoration: underline;
}

/* ===== CONTAINER ===== */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-base);
}

@media (min-width: 640px) {
    .container {
        padding: 0 calc(var(--spacing-base) * 1.5);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 calc(var(--spacing-base) * 2);
    }
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--light-bg);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(250, 250, 250, 0.95);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo img {
    height: 40px;
    width: auto;
    transition: var(--transition);
}

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

.nav-desktop {
    display: none;
    gap: 40px;
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }
}

.nav-link {
    font-family: 'Space Mono', monospace;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary-red);
    text-decoration: none;
}

/* Mobile Menu */
.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }
}

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

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-mobile {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--light-bg);
    border-bottom: 1px solid var(--border-light);
    flex-direction: column;
    gap: 0;
    padding: 20px;
}

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

.nav-mobile .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

/* ===== HERO SECTION ===== */
.hero {
    background-color: var(--light-bg);
    padding: 120px var(--spacing-base) 80px;
    margin-top: 60px;
    text-align: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.hero-logo {
    height: 80px;
    width: auto;
    animation: fadeInDown 0.8s ease-out;
}

.hero-title {
    color: var(--text-dark);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: 1.125rem;
    max-width: 600px;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.cta-button {
    background-color: transparent;
    border: 2px solid var(--text-dark);
    color: var(--text-dark);
    padding: 14px 40px;
    font-family: 'Space Mono', monospace;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.cta-button:hover {
    background-color: var(--text-dark);
    color: var(--text-light);
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: var(--spacing-lg) var(--spacing-base);
}

.section-title {
    color: var(--text-light);
    margin-bottom: 60px;
    text-align: center;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 60px;
    margin-bottom: 40px;
}

.portfolio-item {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 40px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.portfolio-item:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.portfolio-name {
    color: var(--text-light);
    margin-bottom: 12px;
}

.portfolio-description {
    color: var(--text-light-gray);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.portfolio-link {
    color: var(--primary-red);
    font-weight: 600;
    display: inline-block;
}

/* ===== PHILOSOPHY SECTION ===== */
.philosophy {
    background-color: var(--light-bg);
    padding: var(--spacing-lg) var(--spacing-base);
    text-align: center;
}

.philosophy-title {
    margin-bottom: 20px;
    color: var(--text-dark);
}

.philosophy-text {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.125rem;
    color: var(--text-gray);
}

/* ===== ABOUT SECTION ===== */
.about {
    background-color: var(--light-bg);
    padding: var(--spacing-lg) var(--spacing-base);
    border-top: 1px solid var(--border-light);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 60px;
}

.about-item {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-title {
    color: var(--text-dark);
    font-size: 1.125rem;
}

.about-text {
    color: var(--text-gray);
    line-height: 1.8;
}

.contact-link {
    color: var(--primary-red);
    font-weight: 600;
}

/* ===== INSIGHTS SECTION ===== */
.insights {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: var(--spacing-lg) var(--spacing-base);
}

.insights .section-title {
    color: var(--text-light);
    margin-bottom: 60px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.blog-post {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 0;
    transition: var(--transition);
}

.blog-post:hover {
    transform: translateY(-5px);
}

.blog-date {
    font-size: 0.875rem;
    color: var(--text-light-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-title {
    color: var(--text-light);
    font-size: 1.25rem;
    line-height: 1.4;
}

.blog-excerpt {
    color: var(--text-light-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

.blog-link {
    color: var(--primary-red);
    font-weight: 600;
    display: inline-block;
    margin-top: 8px;
}

/* ===== NEWSLETTER SECTION ===== */
.newsletter {
    background-color: var(--light-bg);
    padding: var(--spacing-lg) var(--spacing-base);
    border-top: 1px solid var(--border-light);
    text-align: center;
}

.newsletter-title {
    margin-bottom: 12px;
    color: var(--text-dark);
}

.newsletter-subtitle {
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.newsletter-form input {
    flex: 1;
    min-width: 200px;
    padding: 12px 16px;
    border: 1px solid var(--border-light);
    background-color: var(--text-light);
    color: var(--text-dark);
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(221, 0, 0, 0.1);
}

.newsletter-button {
    padding: 12px 32px;
    background-color: var(--text-dark);
    color: var(--text-light);
    border: none;
    font-family: 'Space Mono', monospace;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-button:hover {
    background-color: var(--primary-red);
}

.newsletter-message {
    font-size: 0.875rem;
    color: var(--primary-red);
    min-height: 20px;
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 60px var(--spacing-base) 40px;
    border-top: 1px solid var(--border-dark);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    text-align: center;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 10px;
}

.footer-text {
    font-family: 'Space Mono', monospace;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light-gray);
}

.social-links {
    display: flex;
    gap: 30px;
    margin: 20px 0;
}

.social-link {
    font-family: 'Space Mono', monospace;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary-red);
    font-weight: 600;
    transition: var(--transition);
}

.social-link:hover {
    opacity: 0.7;
}

.copyright {
    font-size: 0.875rem;
    color: var(--text-light-gray);
    margin-top: 20px;
}

/* ===== BLOG ARTICLE ===== */
.blog-article {
    background-color: var(--light-bg);
    padding: 100px var(--spacing-base) 80px;
    margin-top: 60px;
}

.blog-header {
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
}

.blog-content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-content p {
    margin-bottom: 24px;
    color: var(--text-gray);
    line-height: 1.8;
}

.blog-content h2 {
    margin: 40px 0 20px;
    color: var(--text-dark);
}

.blog-back-link {
    display: inline-block;
    margin-bottom: 40px;
    color: var(--primary-red);
    font-weight: 600;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .portfolio-grid,
    .about-grid,
    .blog-grid {
        gap: 30px;
    }

    .portfolio-item {
        padding: 24px;
    }

    .hero {
        padding: 100px var(--spacing-base) 60px;
    }

    .portfolio,
    .insights,
    .newsletter,
    .about {
        padding: 60px var(--spacing-base);
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form input,
    .newsletter-button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px var(--spacing-base) 50px;
    }

    .hero-logo {
        height: 60px;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 0.75rem;
    }

    .portfolio-grid,
    .about-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-item {
        padding: 20px;
    }

    .section-title {
        font-size: 1.5rem;
    }
}

/* ===== ACCESSIBILITY ===== */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--primary-red);
    outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
    .header,
    .newsletter {
        display: none;
    }
}