/* ========================================
   Portfolio Design System
   Pure Monochrome + Full Experimental
   ======================================== */

/* ========================================
   Google Fonts Import - JetBrains Mono
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap');

/* ========================================
   CSS Reset & Normalize
   ======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    background-image: radial-gradient(var(--border-subtle) 1px, transparent 1px);
    background-size: 24px 24px;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

ul,
ol {
    list-style: none;
}

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

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

/* ========================================
   CSS Custom Properties (Variables)
   ======================================== */
:root {
    /* ========================================
       Color Palette: Pure Monochrome
       ======================================== */

    /* Background Colors */
    --bg-primary: #0A0A0A;
    /* Near-black base */
    --bg-surface-1: #111111;
    /* Surface layer 1 */
    --bg-surface-2: #1A1A1A;
    /* Surface layer 2 */
    --bg-surface-3: #222222;
    /* Surface layer 3 */

    /* Text Colors */
    --text-primary: #E5E5E5;
    /* Light gray - primary text */
    --text-secondary: #B8B8B8;
    /* Medium gray - secondary text (improved contrast) */
    --text-muted: #8A8A8A;
    /* Dark gray - muted text (improved contrast) */
    --text-faint: #5A5A5A;
    /* Very dark gray - subtle text (improved contrast) */

    /* Border Colors */
    --border-subtle: #1A1A1A;
    /* Very subtle border */
    --border-soft: #2A2A2A;
    /* Soft border */
    --border-medium: #3A3A3A;
    /* Medium border */
    --border-strong: #4A4A4A;
    /* Strong border */

    /* ========================================
       Typography
       ======================================== */
    --font-display: 'JetBrains Mono', monospace;
    --font-body: 'JetBrains Mono', monospace;

    /* Typography Scale */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    --font-size-7xl: 4.5rem;
    --font-size-8xl: 6rem;

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Line Heights */
    --line-height-tight: 1.1;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;

    /* Letter Spacing */
    --letter-spacing-tight: -0.02em;
    --letter-spacing-normal: -0.02em;
    --letter-spacing-wide: 0;

    /* ========================================
       Spacing Scale
       ======================================== */
    --space-0: 0;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* ========================================
       Transitions
       ======================================== */
    --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-base: 250ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 350ms cubic-bezier(0.16, 1, 0.3, 1);

    /* Transition Properties */
    --transition-colors: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
    --transition-transform: transform var(--transition-base);
    --transition-all: all var(--transition-base);

    /* ========================================
       Border Radius
       ======================================== */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* ========================================
       Shadows (Monochrome)
       ======================================== */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.2), 0 1px 2px 0 rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.35), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.35);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);

    /* ========================================
       Layout
       ======================================== */
    --container-max-width: 1400px;
    --container-padding: var(--space-6);

    /* Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
}

/* ========================================
   SVG Noise Overlay
   ======================================== */
/* ========================================
   SVG Noise Overlay - REMOVED
   ======================================== */
/* .noise-overlay removed */

/* ========================================
   Typography Styles
   ======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--space-4);
}

h1 {
    font-size: var(--font-size-7xl);
    font-weight: var(--font-weight-bold);
    letter-spacing: var(--letter-spacing-tight);
}

h2 {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
}

h3 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-semibold);
}

h4 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
}

h5 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
}

h6 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
}

p {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    max-width: 65ch;
}

small {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

strong {
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

/* ========================================
   Interactive Elements
   ======================================== */
a {
    transition: var(--transition-colors), var(--transition-transform);
    cursor: pointer;
}

a:hover {
    color: var(--text-primary);
    transform: translateY(-1px);
}

button {
    font-family: var(--font-body);
    cursor: pointer;
    transition: var(--transition-all);
}

button:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

input,
textarea,
select {
    font-family: var(--font-body);
    transition: var(--transition-colors), var(--transition-shadow);
}

input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--border-medium);
    outline-offset: 2px;
}

/* ========================================
   Layout & Container
   ======================================== */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
}

main {
    flex: 1;
}

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

section {
    padding: var(--space-16) 0;
}

/* ========================================
     Navigation
   ======================================== */
header {
    position: sticky;
    top: 0;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-subtle);
    z-index: var(--z-sticky);
    padding: var(--space-4) 0;
    transition: var(--transition-all);
}

header.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(10, 10, 10, 0.95);
}

/* Header container layout */
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo styling */
header .logo {
    font-family: var(--font-display);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-medium);
    transition: var(--transition-all);
    position: relative;
}

header .logo:hover {
    transform: scale(1.05);
    background: var(--bg-surface-1);
    border-color: var(--border-strong);
}

/* Navigation links */
header .nav-links {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    list-style: none;
    padding: 0;
    margin: 0;
}

header .nav-links a {
    font-family: var(--font-body);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    transition: var(--transition-all);
    position: relative;
}

header .nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text-primary);
    transition: width var(--transition-base);
}

header .nav-links a:hover {
    color: var(--text-primary);
    background: var(--bg-surface-1);
}

header .nav-links a:hover::after {
    width: 100%;
}

header .nav-links a.active {
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
}

header .nav-links a.active::after {
    width: 100%;
}

/* Mobile menu button (hidden by default) */
header .mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border-medium);
    cursor: pointer;
    padding: 0;
}

header .mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 1px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-all);
}

header .mobile-menu-btn:hover span {
    background: var(--text-primary);
}

/* ========================================
     Hero Section - Experimental Layout
   ======================================== */
#hero {
    min-height: 80vh;
    padding: var(--space-32) var(--container-padding);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border-subtle);
}

.hero-content {
    display: flex;
    flex-direction: column-reverse;
    /* Mobile: Text Top, Image Bottom */
    align-items: center;
    justify-content: center;
    gap: var(--space-12);
}

@media (min-width: 768px) {
    #hero {
        padding: var(--space-24) var(--container-padding);
        min-height: 75vh;
        display: flex;
        /* Ensure hero is flex container to center content if needed, or just block */
        align-items: center;
    }

    .hero-content {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        /* Text gets slightly more space */
        align-items: center;
        justify-items: start;
        text-align: left;
        width: 100%;
        /* Ensure content takes full width */
        gap: var(--space-16);
    }

    .hero-text {
        grid-column: 1;
        padding-right: var(--space-8);
        text-align: left;
        flex: none;
    }

    .hero-image {
        grid-column: 2;
        width: 100%;
        display: flex;
        justify-content: flex-end;
        /* Align image to far right */
        align-items: center;
    }
}

.hero-text {
    padding-right: var(--space-8);
}

.hero-text h1 {
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    font-size: var(--font-size-8xl);
    line-height: 0.95;
    transform: rotate(-1deg);
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    max-width: 500px;
    font-weight: var(--font-weight-normal);
}

.hero-actions {
    display: flex;
    flex-direction: row;
    /* Changed to row for better button layout */
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.image-wrapper {
    position: relative;
    width: 280px;
    height: 280px;
    overflow: hidden;
    transition: var(--transition-transform), var(--transition-all);
    border: 1px solid var(--border-medium);
    border-radius: 24px;
    /* Rounded Edges */
}

.image-wrapper::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: var(--bg-surface-2);
    z-index: -1;
    transform: rotate(3deg);
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* filter: grayscale(100%);  Removed grayscale */
    transition: var(--transition-all);
}

.image-wrapper:hover {
    transform: rotate(-2deg) scale(1.02);
    border-color: var(--border-strong);
}

.image-wrapper:hover img {
    transform: scale(1.05);
}

/* Button Styles - Monochrome */
.btn-primary {
    background: var(--bg-surface-1);
    color: var(--text-primary);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--border-medium);
    transition: var(--transition-all);
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    max-width: 200px;
    text-align: center;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    background: var(--bg-surface-2);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--border-soft);
    transition: var(--transition-all);
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    max-width: 200px;
    text-align: center;
}

.btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--border-strong);
    background: var(--bg-surface-1);
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-md);
}

.btn-outline:active {
    transform: translateY(0) scale(0.98);
}

/* ========================================
     About Section - Asymmetric Layout
   ======================================== */
#about {
    background: var(--bg-primary);
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--space-32) var(--container-padding);
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-16);
    position: relative;
}

#about::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20%;
    width: 1px;
    height: 60%;
    background: var(--border-subtle);
}

.about-content {
    grid-column: 1;
    padding-left: var(--space-12);
}

.about-content h2 {
    margin-bottom: var(--space-12);
    position: relative;
}

.about-content h2::after {
    content: '';
    position: absolute;
    bottom: -var(--space-4);
    left: 0;
    width: 80px;
    height: 2px;
    background: var(--border-medium);
}

.about-content p {
    margin-bottom: var(--space-8);
    max-width: 55ch;
}

.about-meta {
    grid-column: 2;
    position: sticky;
    top: 120px;
    padding-top: var(--space-12);
    border-top: 1px solid var(--border-subtle);
}

.about-meta-item {
    margin-bottom: var(--space-6);
}

.about-meta-label {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
    font-weight: var(--font-weight-semibold);
}

.about-meta-value {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}

/* ========================================
     Skills Section - Horizontal Scroll
   ======================================== */
#skills {
    background: var(--bg-surface-1);
    padding: var(--space-32) var(--container-padding);
    position: relative;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

#skills h2 {
    text-align: left;
    margin-bottom: var(--space-12);
    padding-left: var(--space-4);
    position: relative;
}

#skills h2::before {
    content: '// ';
    display: inline;
    color: var(--text-muted);
    margin-right: 0.5rem;
}

/* Skills Grid - Staggered Cards */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.skill-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    padding: var(--space-8);
    transition: var(--transition-all);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--text-muted);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.skill-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

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

/* Skill Icon - Monochrome */
.skill-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--bg-surface-1);
    border: 1px solid var(--border-soft);
    margin-bottom: var(--space-6);
    filter: grayscale(100%);
    transition: var(--transition-all);
}

.skill-card:hover .skill-icon {
    transform: scale(1.1);
    border-color: var(--border-medium);
}

.skill-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-6);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

/* Skill List as Pills/Tags */
.skill-card ul {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.skill-card li {
    background: var(--bg-surface-1);
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border: 1px solid var(--border-subtle);
    transition: var(--transition-all);
    cursor: default;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.skill-card li:hover {
    background: var(--bg-surface-2);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

/* ========================================
    Current Role Section - Experimental Grid
   ======================================== */
#current-role {
    background: var(--bg-primary);
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--space-32) var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    position: relative;
}

#current-role::before {
    content: '';
    /* Removed decorative '01' */
    display: none;
}

#current-role h2 {
    grid-column: 1;
    margin-bottom: var(--space-12);
    position: relative;
    z-index: 1;
}

#current-role article {
    grid-column: 2;
    background: var(--bg-surface-1);
    border: 1px solid var(--border-subtle);
    padding: var(--space-12);
    position: relative;
    z-index: 1;
    transition: var(--transition-all);
}

#current-role article::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--border-soft);
    z-index: -1;
}

#current-role article:hover {
    transform: translateY(-2px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

#current-role h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-6);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
}

#current-role p {
    margin-bottom: var(--space-4);
}

#current-role p strong {
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
}

/* ========================================
     Contact Section - Unconventional Layout
   ======================================== */
#contact {
    background: var(--bg-surface-1);
    padding: var(--space-32) var(--container-padding);
    position: relative;
    border-top: 1px solid var(--border-subtle);
}

#contact .contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-8);
    max-width: 800px;
    margin: 0 auto;
}

#contact h2 {
    text-align: center;
    margin-bottom: var(--space-4);
    font-size: var(--font-size-8xl);
    /* Massive header */
    line-height: 0.9;
    letter-spacing: -0.05em;
}

#contact .contact-cta {
    font-family: var(--font-body);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-normal);
    color: var(--text-secondary);
    margin-bottom: var(--space-12);
    line-height: var(--line-height-relaxed);
    max-width: 60ch;
}

#contact address {
    background: transparent;
    /* Clean look */
    border: none;
    padding: 0;
    text-align: center;
    position: relative;
    overflow: visible;
    transition: var(--transition-all);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

#contact address::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--border-medium);
    opacity: 0;
    transition: opacity var(--transition-base);
}

/* Removed text hover effects on address container per user request */

#contact address p {
    margin-bottom: var(--space-4);
    position: relative;
    z-index: 1;
}

#contact address p:last-child {
    margin-bottom: 0;
}

#contact .email-link {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-decoration: none;
    display: inline-block;
    transition: var(--transition-all);
    position: relative;
    padding: var(--space-4) var(--space-8);
    border: 1px solid var(--text-primary);
    /* Outline requested */
    border-radius: var(--radius-full);
    /* Pill shape */
}

#contact .email-link:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
    /* Invert colors on hover */
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

#contact .email-link::before {
    content: '';
    /* Remove the arrow, keep it clean */
    display: none;
}

/* ========================================
     Footer - Minimalist
   ======================================== */
footer {
    background: var(--bg-primary);
    color: var(--text-primary);
    margin-top: auto;
    position: relative;
    border-top: 1px solid var(--border-subtle);
}

footer .container {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

/* Footer Top Section */
footer .footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
}

footer .footer-logo {
    width: 48px;
    height: 48px;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-medium);
    transition: var(--transition-all);
}

footer .footer-logo:hover {
    transform: scale(1.1);
    border-color: var(--border-strong);
}

/* Back to Top Button */
footer .back-to-top {
    background: var(--bg-surface-1);
    border: 1px solid var(--border-soft);
    padding: var(--space-3) var(--space-6);
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: var(--transition-all);
}

footer .back-to-top::before {
    content: '↑';
    display: inline-block;
    transition: var(--transition-transform);
}

footer .back-to-top:hover {
    color: var(--text-primary);
    background: var(--bg-surface-2);
    border-color: var(--border-medium);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

footer .back-to-top:hover::before {
    transform: translateY(-4px);
}

footer .back-to-top:active {
    transform: translateY(0);
}

/* Footer Bottom Section */
footer .footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-subtle);
}

footer .footer-bottom p {
    color: var(--text-muted);
    margin: 0;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    text-align: center;
}

footer .footer-bottom p:last-child {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

/* ========================================
     Responsive Breakpoints
   ======================================== */

/* Mobile: 767px and down */
@media (max-width: 767px) {
    header .container {
        flex-wrap: wrap;
    }

    header .logo {
        width: 42px;
        height: 42px;
        font-size: var(--font-size-xl);
    }

    header .mobile-menu-btn {
        display: flex;
    }

    header .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: center;
        gap: var(--space-2);
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-subtle);
        padding: var(--space-4) 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height var(--transition-slow), opacity var(--transition-base), padding var(--transition-base);
    }

    header .nav-links.active {
        max-height: 300px;
        opacity: 1;
        padding: var(--space-6) 0;
    }

    header .nav-links a {
        width: 100%;
        text-align: center;
        padding: var(--space-3) var(--space-4);
    }

    header .nav-links a::after {
        display: none;
    }

    /* Mobile menu button animation when active */
    header .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(3px, 3px);
    }

    header .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    header .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(3px, -3px);
    }

    #hero {
        min-height: auto;
        flex-direction: column-reverse;
        /* Text on top, image below is standard, or maybe image on top? Let's stick to column for now, but ensure desktop is row */
        gap: var(--space-12);
        padding: var(--space-20) var(--container-padding);
    }

    .hero-text {
        padding-right: 0;
        text-align: center;
    }

    .hero-text h1 {
        font-size: var(--font-size-5xl);
        transform: none;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        align-items: center;
    }

    .image-wrapper {
        width: 200px;
        height: 200px;
    }

    /* About Section - Mobile */
    #about {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        padding: var(--space-16) var(--container-padding);
    }

    #about::before {
        display: none;
    }

    .about-content {
        padding-left: 0;
    }

    .about-meta {
        display: none;
    }

    /* Skills Section - Mobile */
    .skills-grid {
        grid-template-columns: 1fr;
    }

    /* Current Role - Mobile */
    #current-role {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        padding: var(--space-16) var(--container-padding);
    }

    #current-role::before {
        top: var(--space-8);
        font-size: var(--font-size-5xl);
    }

    #current-role h2 {
        grid-column: 1;
    }

    #current-role article {
        grid-column: 1;
    }

    /* Contact Section - Mobile */
    #contact .contact-content {
        gap: var(--space-8);
    }

    #contact h2 {
        font-size: var(--font-size-4xl);
        text-align: center;
    }

    #contact .contact-cta {
        text-align: center;
    }

    #contact .email-link {
        font-size: var(--font-size-xl);
    }

    #contact address {
        padding: var(--space-8);
    }

    /* Footer - Mobile */
    footer .footer-top {
        flex-direction: column;
        align-items: center;
        gap: var(--space-6);
    }

    footer .footer-bottom {
        flex-direction: column;
        gap: var(--space-1);
    }
}

/* Tablet: 768px and up */
@media (min-width: 768px) {
    :root {
        --font-size-h1: 3.5rem;
        --font-size-h2: 3rem;
        --font-size-h3: 2.25rem;
        --font-size-p: 1.125rem;
    }

    header nav ul {
        gap: var(--space-10);
    }

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

    section {
        padding: var(--space-20) 0;
    }

    /* Footer - Tablet */
    footer .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* Desktop: 1024px and up */
@media (min-width: 1024px) {
    :root {
        --font-size-h1: 4rem;
        --font-size-h2: 3.5rem;
        --font-size-h3: 2.5rem;
        --font-size-p: 1.125rem;
    }

    header nav ul {
        gap: var(--space-12);
    }

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

    section {
        padding: var(--space-24) 0;
    }

    .hero-text h1 {
        font-size: var(--font-size-7xl);
    }

    .image-wrapper {
        width: 280px;
        height: 280px;
    }

    /* Footer - Desktop */
    footer .footer-top {
        gap: var(--space-8);
    }
}

/* Large Desktop: 1920px and up */
@media (min-width: 1920px) {
    :root {
        --font-size-h1: 4.5rem;
        --font-size-h2: 4rem;
        --font-size-h3: 3rem;
        --font-size-p: 1.25rem;
    }

    header nav ul {
        gap: var(--space-16);
    }

    #hero img {
        width: 280px;
        height: 280px;
    }

    section {
        padding: var(--space-32) 0;
    }
}

/* ========================================
    CSS-Only Scroll Animations
   ======================================== */

/* Text reveal animation with scroll-timeline (modern CSS) */
@keyframes textReveal {
    from {
        clip-path: inset(0 100% 0 0);
        opacity: 0;
    }

    to {
        clip-path: inset(0 0 0 0);
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(40px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideLeft {
    from {
        transform: translateX(40px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideRight {
    from {
        transform: translateX(-40px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Animation classes for Intersection Observer */
.scroll-reveal {
    opacity: 0;
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.scroll-reveal-left {
    opacity: 0;
    animation: slideLeft 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.scroll-reveal-right {
    opacity: 0;
    animation: slideRight 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.visible {
    opacity: 1;
}

/* Staggered animation delays */
.scroll-reveal:nth-child(1) {
    animation-delay: 0ms;
}

.scroll-reveal:nth-child(2) {
    animation-delay: 100ms;
}

.scroll-reveal:nth-child(3) {
    animation-delay: 200ms;
}

.scroll-reveal:nth-child(4) {
    animation-delay: 300ms;
}

.scroll-reveal:nth-child(5) {
    animation-delay: 400ms;
}

.scroll-reveal:nth-child(6) {
    animation-delay: 500ms;
}

/* ========================================
    Custom Scrollbar
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-strong);
}

/* Selection styling - Monochromatic */
::selection {
    background: var(--bg-surface-2);
    color: var(--text-primary);
}

::-moz-selection {
    background: var(--bg-surface-2);
    color: var(--text-primary);
}

/* ========================================
    Accessibility
   ======================================== */

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {

    .skill-card,
    #current-role article,
    #contact address {
        border: 2px solid var(--border-strong);
    }
}

/* ========================================
    Utility Classes
   ======================================== */

/* Text utilities */
.text-muted {
    color: var(--text-muted);
}

/* Focus visible utility */
.focus-ring:focus-visible {
    outline: 2px solid var(--text-primary);
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* ========================================
    Page Load Animations
   ======================================== */

#hero {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-text h1 {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s both;
}

.hero-subtitle {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

.hero-actions {
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}

.hero-image {
    animation: slideRight 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s both;
}

/* Skill cards initial animation */
.skill-card {
    opacity: 0;
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.skill-card:nth-child(1) {
    animation-delay: 0ms;
}

.skill-card:nth-child(2) {
    animation-delay: 100ms;
}

.skill-card:nth-child(3) {
    animation-delay: 200ms;
}

.skill-card:nth-child(4) {
    animation-delay: 300ms;
}

.skill-card:nth-child(5) {
    animation-delay: 400ms;
}