:root {
    color-scheme: light dark;

    /* Default System Colors (Light/Dark auto) */
    --system-text: #000;
    --system-text-dark: #fff;
    --system-bg: #F2F2F2;
    --system-bg-dark: #0f0f0f;

    /* Default PrintColors */
    --print-text: #000;
    --print-text-dark: #fff;
    --print-bg: #fff;
    --print-bg-dark: #000;

    /* Theme Variables - Default to System */
    --bg-color: light-dark(var(--system-bg), var(--system-bg-dark));
    --text-color: light-dark(var(--system-text), var(--system-text-dark));
    --accent-color: light-dark(#000, #fff);
    /* Default accent matches text usually */
    --border-color: light-dark(#000, #fff);
}

/* Theme Overrides */
[data-theme="light"] {
    color-scheme: light;
    --bg-color: #F2F2F2;
    --text-color: #000000;
    --accent-color: #000000;
    --border-color: #000000;
}

[data-theme="dark"] {
    color-scheme: dark;
    --bg-color: #0f0f0f;
    --text-color: #ffffff;
    --accent-color: #ffffff;
    --border-color: #ffffff;
}

[data-theme="ocean"] {
    color-scheme: dark;
    --bg-color: #0f172a;
    /* Slate 900 */
    --text-color: #e2e8f0;
    /* Slate 200 */
    --accent-color: #38bdf8;
    /* Sky 400 */
    --border-color: #38bdf8;
}

[data-theme="forest"] {
    color-scheme: dark;
    --bg-color: #1a2e05;
    /* Deep Green */
    --text-color: #ecfccb;
    /* Lime 100 */
    --accent-color: #a3e635;
    /* Lime 400 */
    --border-color: #a3e635;
}

[data-theme="cyberpunk"] {
    color-scheme: dark;
    --bg-color: #050505;
    --text-color: #00ff41;
    /* Matrix Green */
    --accent-color: #00ff41;
    /* Matrix Green */
    --border-color: #00ff41;
}

[data-theme="coffee"] {
    color-scheme: light;
    --bg-color: #f5ebe0;
    --text-color: #4a3b32;
    --accent-color: #d4a373;
    --border-color: #4a3b32;
}

@font-face {
    font-family: "OpenMoji";
    src: url("https://cdn.jsdelivr.net/gh/hfg-gmuend/openmoji/font/OpenMoji-color-glyf_colr_0/OpenMoji-color-colr1_svg.woff2") format("woff2");
    unicode-range: U+23, U+2A, U+2D, U+30-39, U+A9, U+AE, U+200D, U+203C, U+2049, U+20E3, U+2117, U+2120, U+2122, U+2139, U+2194-2199, U+21A9, U+21AA, U+229C, U+231A, U+231B, U+2328, U+23CF, U+23E9-23F3, U+23F8-23FE, U+24C2, U+25A1, U+25AA-25AE, U+25B6, U+25C0, U+25C9, U+25D0, U+25D1, U+25E7-25EA, U+25ED, U+25EE, U+25FB-25FE, U+2600-2605, U+260E, U+2611, U+2614, U+2615, U+2618, U+261D, U+2620, U+2622, U+2623, U+2626, U+262A, U+262E, U+262F, U+2638-263A, U+2640, U+2642, U+2648-2653, U+265F, U+2660, U+2663, U+2665, U+2666, U+2668, U+267B, U+267E, U+267F, U+2691-2697, U+2699, U+269B, U+269C, U+26A0, U+26A1, U+26A7, U+26AA, U+26AB, U+26B0, U+26B1, U+26BD, U+26BE, U+26C4, U+26C5, U+26C8, U+26CE, U+26CF, U+26D1, U+26D3, U+26D4, U+26E9, U+26EA, U+26F0-26F5, U+26F7-26FA, U+26FD, U+2702, U+2705, U+2708-270D, U+270F, U+2712, U+2714, U+2716, U+271D, U+2721, U+2728, U+2733, U+2734, U+2744, U+2747, U+274C, U+274E, U+2753-2755, U+2757, U+2763, U+2764, U+2795-2797, U+27A1, U+27B0, U+27BF, U+2934, U+2935, U+2B05-2B07, U+2B0C, U+2B0D, U+2B1B, U+2B1C, U+2B1F-2B24, U+2B2E, U+2B2F, U+2B50, U+2B55, U+2B58, U+2B8F, U+2BBA-2BBC, U+2BC3, U+2BC4, U+2BEA, U+2BEB, U+3030, U+303D, U+3297, U+3299, U+E000-E009, U+E010, U+E011, U+E040-E06D, U+E080-E0B4, U+E0C0-E0CC, U+E0FF-E10D, U+E140-E14A, U+E150-E157, U+E181-E189, U+E1C0-E1C4, U+E1C6-E1D9, U+E200-E216, U+E240-E269, U+E280-E283, U+E2C0-E2C4, U+E2C6-E2DA, U+E300-E303, U+E305-E30F, U+E312-E316, U+E318-E322, U+E324-E329, U+E32B, U+E340-E348, U+E380, U+E381, U+F000, U+F77A, U+F8FF, U+FE0F, U+1F004, U+1F0CF, U+1F10D-1F10F, U+1F12F, U+1F16D-1F171, U+1F17E, U+1F17F, U+1F18E, U+1F191-1F19A, U+1F1E6-1F1FF, U+1F201, U+1F202, U+1F21A, U+1F22F, U+1F232-1F23A, U+1F250, U+1F251, U+1F260-1F265, U+1F300-1F321, U+1F324-1F393, U+1F396, U+1F397, U+1F399-1F39B, U+1F39E-1F3F0, U+1F3F3-1F3F5, U+1F3F7-1F4FD, U+1F4FF-1F53D, U+1F549-1F54E, U+1F550-1F567, U+1F56F, U+1F570, U+1F573-1F57A, U+1F587, U+1F58A-1F58D, U+1F590, U+1F595, U+1F596, U+1F5A4, U+1F5A5, U+1F5A8, U+1F5B1, U+1F5B2, U+1F5BC, U+1F5C2-1F5C4, U+1F5D1-1F5D3, U+1F5DC-1F5DE, U+1F5E1, U+1F5E3, U+1F5E8, U+1F5EF, U+1F5F3, U+1F5FA-1F64F, U+1F680-1F6C5, U+1F6CB-1F6D2, U+1F6D5-1F6D7, U+1F6DC-1F6E5, U+1F6E9, U+1F6EB, U+1F6EC, U+1F6F0, U+1F6F3-1F6FC, U+1F7E0-1F7EB, U+1F7F0, U+1F90C-1F93A, U+1F93C-1F945, U+1F947-1F9FF, U+1FA70-1FA7C, U+1FA80-1FA89, U+1FA8F-1FAC6, U+1FACE-1FADC, U+1FADF-1FAE9, U+1FAF0-1FAF8, U+1FBC5-1FBC9, U+E0061-E0067, U+E0069, U+E006C-E0079, U+E007F;
}

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

/* Custom Scrollbar */
html {
    overflow-x: hidden;
    scrollbar-width: thin;
    width: 100%;
    height: 100%;
}

body {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    font-family: 'Space Mono', monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    padding: 2rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}

header {
    margin-bottom: 2rem;
}

header nav {
    margin-top: 0.5rem;
}

section {
    margin-bottom: 2rem;
}

#header-contact {
    margin-bottom: 0;
    display: none;
}

.nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    list-style: none;
}

.nav-links li {
    display: inline-block;
}

.skill-container {
    margin-top: 1rem;
    ;
}

.skill-container ul {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
    align-self: center;
    padding: 0 1rem;
}

.skill-container ul li {
    display: flex;
    align-items: center;
}

.skill-container ul li img {
    width: 2rem;
    height: 2rem;
    display: block;
    padding-right: 0.5rem;
    border-right: 1px solid var(--border-color);
    margin-right: 1rem;
}

.experience-container h3 {
    display: flex;
    align-items: center;
    margin-top: 0.5rem;
}

.experience-container h3 img {
    width: 5.5rem;
    height: 2.5rem;
    margin-right: 0.5rem;
    display: block;
    padding-right: 0.5rem;
    border-right: 1px solid var(--border-color);
}

.experience-container .role-details {
    margin-bottom: 1rem;
    font-size: 1rem;
    /* font-weight: 800; */
    font-style: italic;
    opacity: 0.8;
}

.experience-container .experience-list {
    list-style: inside;
    margin: 0;
    padding: 0;
}

.experience-container .experience-list li {
    margin-bottom: 0.5rem;
}

.all-experiences {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.all-projects {
    margin-top: 0.5rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.project-container .involvement {
    margin-top: 0.5rem;
    display: flex;
    gap: 0.2rem;
    list-style: none;
    flex-wrap: wrap;
    padding: 0;
}

.project-container .involvement span {
    opacity: 0.8;
    width: fit-content;
    font-size: 0.8rem;
}

.project-container .outcome {
    margin-top: 0.5rem;
    list-style: inside;
}

.project-container {
    margin-bottom: 0.5rem;
}

.contact-container {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    list-style: none;
    flex-wrap: wrap;
}

.contact-container li {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.5rem;
}

.contact-container li img {
    width: 2rem;
    height: 2rem;
    display: flex;
    padding: 0;
    margin: 0;
    padding-right: 0.5rem;
    border-right: 1px solid var(--border-color);
    margin-right: 0.5rem;
}


@media screen and (max-width: 768px) {
    .skill-container ul {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        padding: 0;
    }

    .all-experiences {
        grid-template-columns: repeat(1, 1fr);
        gap: 0.5rem;
    }

    .all-projects {
        grid-template-columns: repeat(1, 1fr);
        gap: 0.5rem;
    }
}

@media screen and (max-width: 480px) {
    .skill-container ul li img {
        width: 1.5rem;
        height: 1.5rem;
        margin-right: 0.5rem;
    }
}

@media print {
    :root,
    [data-theme] {
        font-size: 12px;
        /* Force print colors regardless of theme */
        --bg-color: #ffffff !important;
        --text-color: #000000 !important;
        --accent-color: #000000 !important;
        --border-color: #000000 !important;
        color-scheme: light !important;
    }

    header nav {
        display: none;
    }

    .all-experiences {
        grid-template-columns: repeat(1, 1fr);
        gap: 0.5rem;
    }

    .all-projects {
        grid-template-columns: repeat(1, 1fr);
        gap: 0.5rem;
    }

    #header-contact {
        display: block;
    }

    #contact {
        display: none;
    }
}

/* Theme Picker UI */
.theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-color);
    border-radius: 50%;
    transition: background-color 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* Desktop: Top Right Absolute */
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    z-index: 1001;
}

.theme-toggle-btn:hover {
    background-color: rgba(128, 128, 128, 0.1);
    transform: scale(1.1);
}

.theme-toggle-btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Theme Menu (Desktop Popover) */
.theme-menu {
    position: absolute;
    top: 4rem; /* Adjust based on header height */
    right: 2rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    width: 320px;
}

.theme-menu[aria-hidden="false"] {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* Theme Option Tile */
.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background-color 0.2s;
    color: var(--text-color);
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
}

.theme-option:hover,
.theme-option:focus-visible {
    background-color: rgba(128, 128, 128, 0.1);
    outline: none;
}

.theme-option:focus-visible {
    box-shadow: 0 0 0 2px var(--accent-color);
}

/* Theme Preview Swatch */
.theme-swatch {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: transform 0.2s;
}

.theme-option:hover .theme-swatch {
    transform: scale(1.1);
}

.theme-option[aria-checked="true"] .theme-swatch {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--bg-color), 0 0 0 4px var(--accent-color);
}

/* Swatch Internal Colors */
.theme-swatch::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--swatch-bg);
}

.theme-swatch::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 50%;
    height: 50%;
    background-color: var(--swatch-accent);
    border-top-left-radius: 8px;
}

/* Mobile Styles */
.theme-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
}

.theme-menu-overlay[aria-hidden="false"] {
    display: block;
    opacity: 1;
}

@media screen and (max-width: 768px) {
    /* Mobile: Floating Bottom Right */
    .theme-toggle-btn {
        position: fixed;
        top: auto;
        bottom: 2rem;
        right: 2rem;
        background-color: var(--bg-color);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        border: 1px solid var(--border-color);
        width: 3.5rem;
        height: 3.5rem;
    }

    .theme-menu {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        border-radius: 20px 20px 0 0;
        transform: translateY(100%);
        border-left: none;
        border-right: none;
        border-bottom: none;
        padding: 2rem 1rem;
        padding-bottom: 6rem; /* Make space for the button if it overlaps, or just safe area */
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .theme-menu[aria-hidden="false"] {
        transform: translateY(0);
    }

    .theme-option {
        font-size: 0.9rem;
    }

    .theme-swatch {
        width: 56px;
        height: 56px;
    }
}