/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #13131a;
    --bg-card: #1a1a24;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --accent-primary: #10b981;
    --accent-hover: #34d399;
    --border-color: #2a2a35;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-base: 14px;
    --font-size-sm: 0.813rem;
    --font-size-lg: 1rem;
    --font-size-xl: 1.125rem;
    --font-size-2xl: 1.5rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    /* Max Width */
    --max-width: 1400px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    cursor: none;
}

/* Cursor Spotlight Effect */
#cursor-spotlight {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    mix-blend-mode: screen;
}

#cursor-dot {
    position: fixed;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.85);
    pointer-events: none;
    z-index: 10000;
    transform: translate(-50%, -50%);
    transition: width 0.15s ease, height 0.15s ease, background-color 0.15s ease, border 0.15s ease;
}

#cursor-dot.hovering {
    width: 24px;
    height: 24px;
    background-color: transparent;
    border: 2px solid rgba(16, 185, 129, 0.9);
}

a, button { cursor: none; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

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

ul {
    list-style: none;
}

/* ===================================
   Navigation Bar
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(10, 10, 15, 0.85);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    padding: var(--spacing-sm) 0;
    transition: border-color var(--transition-base), background-color var(--transition-base);
    z-index: 1000;
}

.navbar.scrolled {
    background-color: rgba(10, 10, 15, 0.98);
    border-bottom-color: var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
}

.btn-primary {
    background-color: var(--accent-primary);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: background-color var(--transition-fast);
}

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

/* ===================================
   Main Dashboard Grid
   =================================== */
.main-content {
    padding-top: 70px;
    min-height: 100vh;
    padding-bottom: var(--spacing-lg);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(280px, auto);
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 0;
}

/* Bento Grid Layout */
.about-card {
    grid-column: span 2;
    grid-row: span 2;
}

.tools-card {
    grid-column: span 2;
    grid-row: span 2;
}

.projects-card {
    grid-column: span 4;
    grid-row: span 2;
}

/* ===================================
   Card Styles
   =================================== */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: border-color var(--transition-base);
    position: relative;
    overflow: hidden;
    min-width: 0;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
                rgba(16, 185, 129, 0.1),
                transparent 40%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.card:hover::before {
    opacity: 1;
}

.card:hover {
    border-color: var(--accent-primary);
}

.card h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.card h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.highlight {
    color: var(--accent-primary);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.about-ai {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-style: italic;
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

/* ===================================
   About Me Card
   =================================== */
.about-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-image {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.social-links {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
}

.social-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.social-icon:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* ===================================
   Tools Card
   =================================== */
.tools-card {
    display: flex;
    flex-direction: column;
}

.tools-card h2 {
    margin-bottom: var(--spacing-lg);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    flex: 1;
    align-content: start;
}

.tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 0.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.tool-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    background-color: rgba(16, 185, 129, 0.05);
}

.tool-item svg {
    width: 32px;
    height: 32px;
    transition: transform var(--transition-fast);
}

.tool-item:hover svg {
    transform: scale(1.1);
}

.tool-item span {
    font-size: 0.75rem;
    font-weight: 500;
    text-align: center;
    color: var(--text-primary);
}

/* ===================================
   Projects Card
   =================================== */
.projects-card {
    display: flex;
    flex-direction: column;
}

.projects-card .card-header {
    margin-bottom: var(--spacing-sm);
}

.projects-card .projects-list {
    gap: var(--spacing-sm);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-header h2 {
    margin-bottom: 0;
}


.projects-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-sm);
    flex: 1;
}

.project-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.project-item:hover {
    border-color: var(--accent-primary);
    background-color: rgba(16, 185, 129, 0.05);
}

.project-preview {
    width: 60px;
    height: 60px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--bg-primary);
}


.project-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-info p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

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

.project-tags span {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.688rem;
    font-weight: 500;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    border-radius: var(--radius-sm);
}

.project-title-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: 0.25rem;
}

.project-title-row h3 {
    margin-bottom: 0;
}

.project-badge {
    font-size: 0.625rem;
    font-weight: 700;
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.project-badge.wip {
    background-color: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

/* ===================================
   About Card — Contact Section
   =================================== */
.about-contact {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.about-contact p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.contact-email {
    display: inline-block;
    color: var(--accent-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-fast);
}

.contact-email:hover {
    color: var(--accent-hover);
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ===================================
   Responsive Design
   =================================== */

/* Laptop */
@media (max-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: minmax(300px, auto);
    }

    .about-card {
        grid-column: span 2;
        grid-row: span 2;
    }

    .tools-card {
        grid-column: span 2;
        grid-row: span 2;
    }

    .projects-card {
        grid-column: span 2;
        grid-row: span 2;
    }

    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    #cursor-spotlight,
    #cursor-dot {
        display: none;
    }

    body,
    a,
    button {
        cursor: auto;
    }
}

/* Tablet */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .about-card,
    .tools-card,
    .projects-card {
        grid-column: 1;
        grid-row: auto;
    }

    .nav-container {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .nav-menu {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: var(--spacing-md);
    }

    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===================================
   Focus Styles (Accessibility)
   =================================== */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* ===================================
   Project Placeholder Colors
   =================================== */
.placeholder-green { background: rgba(16, 185, 129, 0.12); color: #10b981; }
.placeholder-blue { background: rgba(59, 130, 246, 0.12); color: #3b82f6; }
.placeholder-teal { background: rgba(14, 118, 168, 0.12); color: #0e76a8; }
.placeholder-purple { background: rgba(139, 92, 246, 0.12); color: #8b5cf6; }
.placeholder-orange { background: rgba(249, 115, 22, 0.12); color: #f97316; }

/* Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-image {
        width: 150px;
        height: 150px;
    }

    .social-icon {
        width: 32px;
        height: 32px;
    }

    .project-preview {
        width: 60px;
        height: 60px;
    }

    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}