/* Base & Variables */
:root {
    --bg-main: #0B0F19;
    --bg-secondary: #0F172A;
    --bg-card: #161F32;
    --bg-card-hover: #1e293b;

    --text-primary: #ffffff;
    --text-secondary: #cbd5e1;
    /* slate-300 */
    --text-muted: #94a3b8;
    /* slate-400 */
    --text-dim: #64748b;
    /* slate-500 */

    --border-color: #1e293b;
    /* slate-800 */

    --color-blue: #3b82f6;
    --color-blue-dark: #2563eb;
    --color-emerald: #10b981;
    --color-purple: #a855f7;
    --color-red: #ef4444;
    --color-yellow: #eab308;

    --font-sans: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --nav-height: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1152px;
    /* 6xl */
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Utilities */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-blue-dark);
    color: white;
}

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-outline {
    border-color: #334155;
    color: var(--text-secondary);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--text-dim);
}

.icon-sm {
    width: 1.125rem;
    height: 1.125rem;
}

.section {
    padding: 5rem 0;
}

.section-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-muted);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    background-color: rgba(11, 15, 25, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    height: var(--nav-height);
    display: flex;
    align-items: center;
}

.nav-container {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.05em;
    color: var(--text-primary);
}

.logo-icon {
    color: var(--color-blue);
    width: 1.25rem;
    height: 1.25rem;
}

.logo-text span {
    color: #475569;
}

.nav-links {
    display: flex;
    gap: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.nav-links a:hover {
    color: #60a5fa;
    transition: color 0.2s;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}

/* Hero Section */
.hero-section {
    padding-top: calc(var(--nav-height) + 5rem);
    padding-bottom: 5rem;
}

.hero-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

@media (min-width: 768px) {
    .hero-container {
        flex-direction: row;
        align-items: center;
    }
}

.hero-content {
    flex: 1;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background-color: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.pulse-container {
    position: relative;
    display: flex;
    height: 0.5rem;
    width: 0.5rem;
}

.pulse-ring {
    position: absolute;
    display: inline-flex;
    height: 100%;
    width: 100%;
    border-radius: 50%;
    background-color: #60a5fa;
    opacity: 0.75;
    animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.pulse-dot {
    position: relative;
    display: inline-flex;
    border-radius: 50%;
    height: 0.5rem;
    width: 0.5rem;
    background-color: var(--color-blue);
}

@keyframes ping {

    75%,
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

.hero-title {
    font-size: 3rem;
    line-height: 1.1;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 4.5rem;
    }
}

.gradient-text {
    background: linear-gradient(to right, #60a5fa, #34d399);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 36rem;
    line-height: 1.75;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Hero Visual (Code Card) */
.hero-visual {
    flex: 1;
    width: 100%;
    max-width: 28rem;
    position: relative;
}

.code-card-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, var(--color-blue), var(--color-emerald));
    filter: blur(48px);
    opacity: 0.2;
    border-radius: 1rem;
}

.code-card {
    position: relative;
    background-color: #111827;
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.code-header {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
}

.dot.red {
    background-color: rgba(239, 68, 68, 0.5);
}

.dot.yellow {
    background-color: rgba(234, 179, 8, 0.5);
}

.dot.green {
    background-color: rgba(16, 185, 129, 0.5);
}

.code-content {
    color: var(--text-muted);
    line-height: 1.6;
}

.line {
    display: flex;
}

.indent {
    padding-left: 1rem;
}

.kwd {
    color: #60a5fa;
    margin-right: 0.5rem;
}

.var {
    color: #fef08a;
}

.op {
    color: #c084fc;
}

.str {
    color: #4ade80;
}

.bool {
    color: #60a5fa;
}

.comment {
    color: var(--text-dim);
    margin-top: 1rem;
}

/* Stats Bar */
.stats-bar {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(15, 23, 42, 0.5);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
    margin-top: 0.25rem;
}

/* About Section */
.about-container {
    text-align: center;
    max-width: 56rem;
}

.about-text {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.75;
}

/* Tech Stack */
.stack-section {
    background-color: #0E1320;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.divider {
    height: 1px;
    background-color: var(--border-color);
    flex: 1;
}

.stack-grid {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .stack-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.stack-card {
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.stack-card:hover {
    border-color: rgba(59, 130, 246, 0.5);
}

.stack-card:nth-child(2):hover {
    border-color: rgba(16, 185, 129, 0.5);
}

.stack-card:nth-child(3):hover {
    border-color: rgba(168, 85, 247, 0.5);
}


.icon-box {
    width: 3rem;
    height: 3rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: transform 0.2s;
}

.stack-card:hover .icon-box {
    transform: scale(1.1);
}

.blue-box {
    background-color: rgba(59, 130, 246, 0.1);
}

.text-blue {
    color: #60a5fa;
}

.emerald-box {
    background-color: rgba(16, 185, 129, 0.1);
}

.text-emerald {
    color: #34d399;
}

.purple-box {
    background-color: rgba(168, 85, 247, 0.1);
}

.text-purple {
    color: #c084fc;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tech-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.dot {
    width: 0.375rem;
    height: 0.375rem;
    border-radius: 50%;
}

.dot.blue {
    background-color: var(--color-blue);
}

.dot.emerald {
    background-color: var(--color-emerald);
}

.dot.purple {
    background-color: var(--color-purple);
}

/* Projects Section */
.projects-header {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
    justify-content: space-between;
}

@media (min-width: 768px) {
    .projects-header {
        flex-direction: row;
        align-items: center;
    }
}

.filter-controls {
    background-color: var(--bg-card);
    padding: 0.25rem;
    border-radius: 0.5rem;
    display: inline-flex;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    color: white;
}

.filter-btn.active {
    background-color: #334155;
    color: white;
}

.projects-grid {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.project-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all 0.2s;
    overflow: hidden;
}

.project-card:hover {
    border-color: #475569;
}

.card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.project-icon-wrapper {
    padding: 0.5rem;
    background-color: #1e293b;
    border-radius: 0.5rem;
    color: var(--text-secondary);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    transition: color 0.2s;
}

.project-card:hover .project-title {
    color: #60a5fa;
}

.project-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.project-details {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid rgba(30, 41, 59, 0.5);
}

.detail-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.detail-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.card-footer {
    background-color: #0f1522;
    padding: 1rem 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    background-color: #1e293b;
    color: #93c5fd;
    /* blue-300 */
    border: 1px solid rgba(51, 65, 85, 0.5);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-main);
    padding: 5rem 0;
}

.footer-content {
    text-align: center;
    max-width: 56rem;
}

.footer-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.footer-text {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.social-btn {
    padding: 0.75rem;
    background-color: #1e293b;
    border-radius: 9999px;
    color: white;
    transition: background-color 0.2s;
}

.social-btn:hover {
    background-color: var(--color-blue);
}

.copyright {
    color: #475569;
    font-size: 0.875rem;
    font-family: var(--font-mono);
}