/* --- Global Reset & Variable Ecosystem --- */
:root {
    --bg-dark: #0a0a0c;
    --card-bg: rgba(20, 20, 25, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent: #6366f1; /* Deep Modern Violet-Indigo */
    --accent-glow: rgba(99, 102, 241, 0.15);
    --font-main: 'Plus Jakarta Sans', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark);
    font-family: var(--font-main);
    color: var(--text-primary);
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

/* Fluid Layout Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Subtle Animated Ambient Background Accent */
.gradient-bg {
    position: fixed;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(0,0,0,0) 70%);
    z-index: -1;
    pointer-events: none;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 10, 12, 0.5);
}

.nav-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    font-size: 1.4rem;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.nav-links a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem 2rem;
    position: relative;
}

.hero-container {
    max-width: 850px;
    margin: 0 auto;
    text-align: left;
}

.hero-subtitle {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 2rem;
}

.accent-text {
    color: transparent;
    -webkit-text-stroke: 1px rgba(255,255,255,0.8);
}

.hero-bio {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    font-weight: 300;
    max-width: 700px;
    margin-bottom: 3rem;
}

.btn {
    display: inline-block;
    text-decoration: none;
    padding: 1rem 2.2rem;
    font-weight: 500;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: transparent;
    color: var(--text-primary);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* --- Core Ecosystem / Stack Section --- */
.stack-section {
    padding: 8rem 0;
    border-top: 1px solid var(--border-color);
}

.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    margin-bottom: 4rem;
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 15fr));
    gap: 1.5rem;
}

.stack-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 8px;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
}

.stack-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.stack-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    font-weight: 700;
    display: block;
    margin-bottom: 1rem;
}

.stack-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.stack-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --- Skillset Showcase Section --- */
.skills-section {
    padding: 8rem 0 12rem 0;
}

.skills-showcase {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 4rem;
}

.skill-block {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3.5rem;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

/* JavaScript Trigger Class for Animation */
.skill-block.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Clean handling when visual columns are missing */
.skill-block:not(.featured) {
    grid-template-columns: 1fr;
}

.skill-number {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    display: block;
    margin-bottom: 1rem;
}

.skill-content h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1.2rem;
    letter-spacing: -0.5px;
}

.skill-content p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 2rem;
    max-width: 650px;
}

/* Highlighting Specific Sections Elegantly */
.skill-block.featured {
    border-left: 4px solid var(--accent);
}

.skill-block.visual-highlight {
    background: linear-gradient(135deg, rgba(20, 20, 25, 0.8) 0%, rgba(30, 27, 75, 0.2) 100%);
    border-right: 1px solid rgba(99, 102, 241, 0.3);
}

.skill-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    border-bottom: 1px solid transparent;
    transition: var(--transition-smooth);
}

.skill-link:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.multi-links {
    display: flex;
    gap: 2.5rem;
}

/* Abstract Subtle Graphic Decorator Box for Engineering */
.code-deco-box {
    background: #020203;
    padding: 1.5rem;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.05);
    font-family: monospace;
    font-size: 0.85rem;
    color: #a78bfa;
}

/* --- Footer --- */
.footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* --- Responsive Adaptations --- */
@media (max-width: 768px) {
    .nav-links { display: none; } /* Focus on mobile content simplicity */
    .skill-block.featured { grid-template-columns: 1fr; }
    .skill-visual { display: none; }
    .skill-block { padding: 2rem; }
    .multi-links { flex-direction: column; gap: 1rem; }
}

/* --- Updated Grid Layout for Small Sections --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 3rem 2.5rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
}

.skill-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.skill-num {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    font-family: monospace;
}

.skill-tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    color: var(--text-secondary);
}

/* Explicit Code Highlight (Left border glow) */
.skill-card.modern-highlight {
    border-left: 3px solid var(--accent);
}
.skill-card .tag-code {
    color: var(--accent);
    background: rgba(99, 102, 241, 0.1);
}

/* Explicit Creative Design Highlight (Deep gradient background variant) */
.skill-card.visual-highlight-card {
    background: linear-gradient(135deg, rgba(20, 20, 25, 0.7) 0%, rgba(49, 46, 129, 0.15) 100%);
    border-right: 1px solid rgba(99, 102, 241, 0.25);
}
.skill-card .tag-creative {
    color: #a78bfa;
    background: rgba(167, 139, 250, 0.1);
}

.skill-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.skill-card p {
    color: var(--text-secondary);
    font-size: 0.98rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
}

/* Sleek Actionable Buttons */
.skill-link-btn {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.skill-link-btn svg {
    transition: var(--transition-smooth);
}

.skill-link-btn:hover {
    color: var(--accent);
}

.skill-link-btn:hover svg {
    transform: translateX(4px);
}

/* Multi link grid for layout balance */
.split-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.split-links .skill-link-btn:hover {
    color: #a78bfa;
}
/* --- Let's Connect Section --- */
.connect-section {
    padding: 10rem 0;
    border-top: 1px solid var(--border-color);
    position: relative;
}

.connect-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.connect-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent);
    font-weight: 700;
    display: block;
    margin-bottom: 1rem;
}

.connect-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
}

.connect-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 550px;
    font-weight: 300;
}

.connect-action {
    display: flex;
    justify-content: flex-end;
}

.email-link {
    font-size: clamp(1.3rem, 2.5vw, 2.2rem);
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -1px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.5rem;
    transition: var(--transition-smooth);
}

.arrow-diagonal {
    color: var(--accent);
    transition: var(--transition-smooth);
    display: inline-block;
}

/* Hover States */
.email-link:hover {
    color: var(--text-primary);
    border-color: var(--accent);
}

.email-link:hover .arrow-diagonal {
    transform: translate(4px, -4px);
}

/* Responsive Adaptations */
@media (max-width: 968px) {
    .connect-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .connect-action {
        justify-content: flex-start;
    }
    
    .connect-section {
        padding: 6rem 0;
    }
}

/* --- Hero Layout tailored for Square Photos --- */
.grid-hero {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.image-frame {
    position: relative;
    width: 100%;
    max-width: 380px;
    aspect-ratio: 1 / 1; /* 1:1 keeps your square photo exactly as it is */
    border-radius: 12px;
}

.hero-profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    position: relative;
    z-index: 2;
}

/* Subtle Geometric Accent Frame */
.frame-border {
    position: absolute;
    top: 15px;
    left: 15px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent);
    border-radius: 12px;
    z-index: 1;
    transition: var(--transition-smooth);
    pointer-events: none;
}

/* Hover Dynamics */
.image-frame:hover .hero-profile-img {
    transform: translate(-5px, -5px);
}

.image-frame:hover .frame-border {
    transform: translate(5px, 5px);
}

/* Mobile Responsiveness */
@media (max-width: 968px) {
    .grid-hero {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .hero-container {
        text-align: center;
    }
    .hero-bio {
        margin: 0 auto 3rem auto;
    }
    .image-frame {
        max-width: 300px;
        margin: 2rem auto 0 auto;
    }
}