/* ============================================
   MAIN STYLESHEET - Zach Mohr Portfolio
   Swiss Design + Retro Futurism + Dithering
   ============================================ */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Colors - Primary */
    --color-black: #0A0A0A;
    --color-white: #F5F5F0;
    --color-red: #E63946;
    --color-red-light: #FF4757;
    --color-gray-accent: #6C6C6C;

    /* Colors - Retro Futurism Accents (subtle use) */
    --color-pink: #FF006E;
    --color-orange: #FFB703;

    /* Colors - Grays */
    --color-gray-100: #1A1A1A;
    --color-gray-200: #2A2A2A;
    --color-gray-300: #3A3A3A;
    --color-gray-700: #CCCCCC;
    --color-gray-800: #E0E0E0;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 8rem;

    /* Grid */
    --grid-max-width: 1200px;
    --grid-gutter: 2rem;

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'IBM Plex Mono', monospace;
    --font-display: 'Orbitron', sans-serif;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Borders */
    --border-width: 2px;
    --border-radius: 0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-white);
    background-color: var(--color-black);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
    list-style: none;
}

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

/* 12-Column Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--grid-gutter);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: var(--border-width) solid var(--color-gray-100);
}

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

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-red);
    letter-spacing: 0.1em;
    transition: color var(--transition-fast);
}

.nav-logo:hover {
    color: var(--color-red-light);
}

.nav-menu {
    display: flex;
    gap: var(--space-md);
}

.nav-link {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-red);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--color-red);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-2xl) var(--grid-gutter);
    position: relative;
    overflow: clip;
}

.hero-container {
    max-width: var(--grid-max-width);
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

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

.hero-title-symbol {
    display: block;
    color: var(--color-red);
    font-size: 0.6em;
    margin: var(--space-xs) 0;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    letter-spacing: 0.05em;
}

/* Hero Geometric Shapes / Three.js Container */
.hero-geometric {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#three-container {
    width: 100%;
    height: 100%;
    cursor: grab;
}

#three-container:active {
    cursor: grabbing;
}

#three-container canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    opacity: 0.7;
}

.scroll-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--color-white);
    border-bottom: 2px solid var(--color-white);
    transform: rotate(45deg);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: rotate(45deg) translateY(0);
    }
    50% {
        transform: rotate(45deg) translateY(10px);
    }
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--space-2xl) var(--grid-gutter);
    background-color: var(--color-gray-100);
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    margin-bottom: var(--space-md);
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.about-description {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: var(--space-md);
    color: var(--color-gray-800);
}

.about-image-photo {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    border: var(--border-width) solid var(--color-gray-300);
    display: block;
}

.about-image-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background-color: var(--color-gray-200);
    border: var(--border-width) solid var(--color-gray-300);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-text {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ============================================
   CAPABILITIES SECTION
   ============================================ */
.capabilities {
    padding: var(--space-2xl) var(--grid-gutter);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.capability-card {
    padding: var(--space-md);
    border: var(--border-width) solid var(--color-gray-100);
    transition: border-color var(--transition-base), transform var(--transition-base);
}

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

.capability-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-sm);
    color: var(--color-red);
}

.capability-icon svg {
    width: 100%;
    height: 100%;
}

.capability-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.capability-description {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    line-height: 1.6;
}

/* ============================================
   PROJECTS PAGE
   ============================================ */
.projects-header,
.contact-header {
    padding: calc(var(--space-2xl) + 60px) var(--grid-gutter) var(--space-xl);
    text-align: center;
    background-color: var(--color-gray-100);
}

.page-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    margin-bottom: var(--space-sm);
    color: var(--color-white);
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    max-width: 600px;
    margin: 0 auto;
}

/* Filters */
.filters {
    padding: var(--space-lg) var(--grid-gutter);
    border-bottom: var(--border-width) solid var(--color-gray-100);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: var(--border-width) solid var(--color-gray-300);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--color-red);
    color: var(--color-red);
    background-color: rgba(230, 57, 70, 0.1);
}

/* Projects Grid */
.projects {
    padding: var(--space-2xl) var(--grid-gutter);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.project-card {
    border: var(--border-width) solid var(--color-gray-100);
    overflow: hidden;
    transition: border-color var(--transition-base), transform var(--transition-base);
}

.project-card:hover {
    border-color: var(--color-red);
    transform: translateY(-8px);
}

.project-image {
    position: relative;
    overflow: hidden;
}

.project-image-placeholder {
    width: 100%;
    aspect-ratio: 16/10;
    background-color: var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-content {
    padding: var(--space-md);
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    color: var(--color-white);
}

.project-description {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-gray-700);
    margin-bottom: var(--space-sm);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--color-gray-300);
    color: var(--color-gray-700);
}

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-content {
    padding: var(--space-2xl) var(--grid-gutter);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-xl);
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--color-gray-100);
    padding: var(--space-lg);
    border: var(--border-width) solid var(--color-gray-200);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-700);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-white);
    background-color: var(--color-black);
    border: var(--border-width) solid var(--color-gray-300);
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-red);
}

.form-textarea {
    resize: vertical;
    min-height: 150px;
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-info-card {
    padding: var(--space-md);
    background-color: var(--color-gray-100);
    border: var(--border-width) solid var(--color-gray-200);
}

.contact-info-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--color-red);
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.contact-info-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-red);
}

.contact-link {
    color: var(--color-gray-700);
    transition: color var(--transition-fast);
}

.contact-link:hover {
    color: var(--color-red);
}

.contact-info-text {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    line-height: 1.6;
}

.contact-info-note {
    color: var(--color-gray-700);
    font-style: italic;
    margin-top: var(--space-xs);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: center;
    border: var(--border-width) solid transparent;
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-red);
    color: var(--color-white);
    border-color: var(--color-red);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-red);
}

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

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.btn-full {
    width: 100%;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
    padding: var(--space-2xl) var(--grid-gutter);
    text-align: center;
    background-color: var(--color-gray-100);
    border-top: var(--border-width) solid var(--color-gray-200);
    border-bottom: var(--border-width) solid var(--color-gray-200);
}

.cta-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    margin-bottom: var(--space-sm);
    color: var(--color-pink);
}

.cta-text {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    margin-bottom: var(--space-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-lg) var(--grid-gutter);
    border-top: var(--border-width) solid var(--color-gray-100);
}

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

.footer-text {
    font-size: 0.875rem;
    color: var(--color-gray-700);
}

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

.footer-link {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-red);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    :root {
        --space-lg: 3rem;
        --space-xl: 4rem;
        --space-2xl: 5rem;
        --grid-gutter: 1.5rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-geometric {
        order: -1;
        height: 300px;
    }

    .hero-title-line,
    .hero-title-symbol {
        display: inline;
    }

    .hero-title-symbol {
        font-size: 0.5em;
        margin: 0 var(--space-xs);
    }

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

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

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

    .nav-menu {
        gap: var(--space-sm);
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .filter-buttons {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
    }
}