:root {
    /* Raw Minimalist Variables */
    --bg-primary: #F4F4F4;
    --text-main: #111111;
    --text-muted: #555555;
    --accent: #FF4F00;
    /* International Orange */
    --grid-color: #000000;
    --card-bg: #FFFFFF;
    --border-color: #111111;
    --modal-bg: rgba(244, 244, 244, 0.95);
    --nav-bg: #F4F4F4;
    --transition: all 0.2s ease-out;
    --border-width: 1px;
}

body.dark {
    --bg-primary: #111111;
    --text-main: #EEEEEE;
    --text-muted: #999999;
    --accent: #FF4F00;
    --grid-color: #FFFFFF;
    --card-bg: #1A1A1A;
    --border-color: #333333;
    --modal-bg: rgba(17, 17, 17, 0.95);
    --nav-bg: #111111;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-main);
    margin: 0;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
    transition: background-color 0.2s ease, color 0.2s ease;
}

h1,
h2,
h3,
h4,
h5,
h6,
.heading-font {
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.04em;
    font-weight: 800;
}

.mono-font,
.tag {
    font-family: 'Space Mono', monospace;
    letter-spacing: -0.02em;
}

canvas#hero-canvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1;
    width: 100vw;
    height: 100vh;
    display: block;
    pointer-events: none;
    /* Raw mechanical aesthetic for canvas mask */
    mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}

.hero-section {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 4rem 2rem;
    position: sticky;
    top: 0;
    z-index: 10;
    pointer-events: none;
}

#hero-content-wrapper {
    transition: opacity 0.1s linear, transform 0.1s linear;
    will-change: opacity, transform;
    max-width: 100%;
}

.nav-bar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    background-color: var(--nav-bg);
    border-bottom: var(--border-width) solid var(--border-color);
    transition: var(--transition);
}

/* Stark Buttons */
.btn-raw {
    border: var(--border-width) solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
}

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

/* Theme Toggle */
#theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: var(--border-width) solid var(--border-color);
    background: transparent;
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition);
}

#theme-toggle:hover {
    background: var(--text-main);
    color: var(--bg-primary);
}

.dark-icon {
    display: none;
}

body.dark .light-icon {
    display: none;
}

body.dark .dark-icon {
    display: block;
}

/* Structural Cards / Grids */
.grid-container {
    border: var(--border-width) solid var(--border-color);
    border-bottom: none;
    background: var(--bg-primary);
}

.grid-item {
    border-bottom: var(--border-width) solid var(--border-color);
    border-right: var(--border-width) solid var(--border-color);
    background: var(--card-bg);
}

.grid-item:nth-child(3n) {
    border-right: none;
}

@media (max-width: 1024px) {
    .grid-item:nth-child(3n) {
        border-right: var(--border-width) solid var(--border-color);
    }

    .grid-item:nth-child(2n) {
        border-right: none;
    }
}

@media (max-width: 768px) {
    .grid-item {
        border-right: none;
    }
}

/* Image Cards */
.image-card {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: #000;
}

.image-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s ease-out;
    filter: grayscale(100%) contrast(1.2);
}

.image-card:hover img {
    transform: scale(1.02);
    filter: grayscale(0%) contrast(1);
}

.reveal {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

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

.tag {
    font-size: 0.65rem;
    text-transform: uppercase;
    color: var(--accent);
}

/* Modal Styles */
#project-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--modal-bg);
    align-items: stretch;
    justify-content: center;
    padding: 2rem;
    backdrop-filter: blur(4px);
}

.modal-content {
    width: 100%;
    max-width: 1200px;
    margin: auto;
    background: var(--card-bg);
    border: var(--border-width) solid var(--border-color);
    position: relative;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    max-height: 90vh;
}

.modal-header {
    border-bottom: var(--border-width) solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

#project-modal-close {
    position: fixed;
    top: 2rem;
    right: 2rem;
    color: var(--text-main);
    background: var(--bg-primary);
    border: var(--border-width) solid var(--border-color);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1100;
}

#project-modal-close:hover {
    background: var(--text-main);
    color: var(--bg-primary);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .modal-body {
        grid-template-columns: 1.5fr 1fr;
    }

    .modal-image-container {
        border-right: var(--border-width) solid var(--border-color);
    }
}

/* Fullscreen Preview */
#fullscreen-preview {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: var(--bg-primary);
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

#fullscreen-preview img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    transition: transform 0.2s ease-out;
    border: var(--border-width) solid var(--border-color);
}

#fullscreen-preview-close {
    position: fixed;
    top: 1rem;
    right: 1rem;
    color: var(--text-main);
    background: var(--bg-primary);
    border: var(--border-width) solid var(--border-color);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2100;
}

#fullscreen-preview-close:hover {
    background: var(--text-main);
    color: var(--bg-primary);
}

.fade-out-helper {
    animation: fadeOut 2s ease-out 3s forwards;
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
        display: none;
    }
}

/* Utility */
.border-t-raw {
    border-top: var(--border-width) solid var(--border-color);
}

.border-b-raw {
    border-bottom: var(--border-width) solid var(--border-color);
}

.border-x-raw {
    border-left: var(--border-width) solid var(--border-color);
    border-right: var(--border-width) solid var(--border-color);
}