:root[data-theme="light"] {
    --bg-primary: #fcfcfd;
    --bg-secondary: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --accent-1: #6d28d9;
    --accent-2: #ea580c;
    --accent-3: #0891b2;
    --card-bg: #ffffff;
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --navbar-bg: rgba(252, 252, 253, 0.8);
}

:root[data-theme="dark"] {
    --bg-primary: #050508;
    --bg-secondary: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-1: #a78bfa;
    --accent-2: #fb923c;
    --accent-3: #22d3ee;
    --card-bg: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.8);
    --navbar-bg: rgba(5, 5, 8, 0.8);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    margin: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.3s;
    margin-left: 1.5rem;
    font-size: 1.1rem;
}

.theme-toggle:hover {
    background: var(--accent-1);
    color: #fff;
    transform: rotate(15deg);
}

[data-theme="dark"] .sun-icon {
    display: block;
}

[data-theme="dark"] .moon-icon {
    display: none;
}

[data-theme="light"] .sun-icon {
    display: none;
}

[data-theme="light"] .moon-icon {
    display: block;
}

/* ===== SPECTRAL BACKGROUND ===== */
.spectral-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: var(--bg-dark);
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    pointer-events: none;
}

/* ===== HERO REDESIGN ===== */
.projects-hero {
    position: relative;
    padding: 180px 0 100px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(123, 63, 228, 0.1);
    border: 1px solid rgba(123, 63, 228, 0.2);
    border-radius: 50px;
    color: var(--accent-1);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.projects-hero h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(3.5rem, 12vw, 7.5rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 0.9;
    /* Use text-primary instead of #fff so it adapts to light mode */
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-1) 50%, var(--accent-3) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.projects-hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===== BENTO GRID ===== */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
    margin-bottom: 100px;
}

.project-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    text-decoration: none;
    display: flex;
    flex-direction: column;
}

/* Span variations for Bento effect */
.card-large {
    grid-column: span 8;
    height: 500px;
}

.card-tall {
    grid-column: span 4;
    grid-row: span 2;
    height: 100%;
}

.card-medium {
    grid-column: span 4;
    height: 500px;
}

.card-small {
    grid-column: span 4;
    height: 350px;
}

.card-wide {
    grid-column: span 8;
    height: 350px;
}

@media (max-width: 991px) {

    .card-large,
    .card-tall,
    .card-medium,
    .card-small,
    .card-wide {
        grid-column: span 12;
        height: 400px;
    }
}

.project-img-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
    filter: saturate(0.8) brightness(0.7);
}

.project-card:hover .project-img {
    transform: scale(1.1);
    filter: saturate(1.1) brightness(0.9);
}

.project-content {
    position: relative;
    z-index: 2;
    margin-top: auto;
    padding: 3rem;
    /* Dark gradient overlay stays consistent in both modes for readability */
    background: linear-gradient(to top, rgba(5, 5, 8, 0.95) 20%, transparent 100%);
    transition: all 0.5s ease;
}

.project-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.5rem;
    transition: transform 0.4s ease;
}

.project-tagline {
    font-size: 0.95rem;
    /* Force light color because of the dark overlay */
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
    max-width: 90%;
    opacity: 0.8;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.badge-tech {
    padding: 5px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    /* Force light color */
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Hover states for specific cards */
.project-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

.project-card[data-accent="purple"]:hover {
    border-color: var(--accent-1);
    box-shadow: 0 0 50px rgba(123, 63, 228, 0.25), inset 0 0 20px rgba(123, 63, 228, 0.1);
}

.project-card[data-accent="orange"]:hover {
    border-color: var(--accent-2);
    box-shadow: 0 0 50px rgba(255, 122, 89, 0.25), inset 0 0 20px rgba(255, 122, 89, 0.1);
}

.project-card[data-accent="cyan"]:hover {
    border-color: var(--accent-3);
    box-shadow: 0 0 50px rgba(0, 243, 255, 0.25), inset 0 0 20px rgba(0, 243, 255, 0.1);
}

/* Filter Pills */
.filter-container {
    margin-bottom: 60px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-pill {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 12px 30px;
    border-radius: 50px;
    color: var(--text-secondary);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 0.3s ease;
    cursor: pointer;
}

.filter-pill:hover,
.filter-pill.active {
    background: var(--accent-1);
    color: #fff;
    border-color: var(--accent-1);
    box-shadow: 0 10px 25px rgba(123, 63, 228, 0.3);
}

/* ===== FOOTER OVERRIDE ===== */
.site-footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
}