/* ===== CSS Variables & Design System ===== */
:root {
    /* Color Palette - Slate & Indigo */
    --color-primary: #46447c;
    /* Indigo 600 */
    --color-primary-hover: #40389b;
    /* Indigo 700 */
    --color-secondary: #64748b;
    /* Slate 500 */
    --color-accent: #0ea5e9;
    /* Sky 500 */

    /* Light Mode Defaults */
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    /* Slate 50 */
    --color-bg-card: #ffffff;
    --color-text: #0f172a;
    /* Slate 900 */
    --color-text-muted: #64748b;
    /* Slate 500 */
    --color-border: #e2e8f0;
    /* Slate 200 */

    /* Shadows & Effects */
    --color-bg-nav: rgba(255, 255, 255, 0.9);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 20px rgba(70, 68, 124, 0.15);

    /* Spacing & Radii */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Overrides */
/* Dark Mode Overrides */
[data-theme="dark"] {
    --color-bg: #020617;
    /* Slate 950 */
    --color-bg-alt: #0f172a;
    /* Slate 900 */
    --color-bg-card: #1e293b;
    /* Slate 800 */
    --color-text: #f8fafc;
    /* Slate 50 */
    --color-text-muted: #94a3b8;
    /* Slate 400 */
    --color-border: #1e293b;
    /* Slate 800 */
    --color-primary: #818cf8;
    /* Indigo 400 */
    --color-primary-hover: #5e60e1;
    /* Indigo 500 */
    --color-bg-nav: rgba(2, 6, 23, 0.85);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.6);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--color-primary-hover);
}

ul {
    list-style: none;
}

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

/* ===== Utilities ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: 1rem auto 0;
    border-radius: var(--radius-full);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    border: 1px solid transparent;
    box-shadow: 0 4px 6px -1px rgba(70, 68, 124, 0.2);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 10px -2px rgba(70, 68, 124, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-bg-nav);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.nav-logo:hover {
    color: var(--color-primary-hover);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary);
}

.sun-icon,
.moon-icon {
    transition: transform var(--transition), opacity var(--transition);
}

/* Logic to show/hide icons based on theme */
[data-theme="dark"] .sun-icon {
    display: block;
}

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

:root:not([data-theme="dark"]) .sun-icon {
    display: none;
}

:root:not([data-theme="dark"]) .moon-icon {
    display: block;
}


.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 1.5rem 2rem;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(70, 68, 124, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    gap: 4rem;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-greeting {
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

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

.hero-visual {
    flex-shrink: 0;
}

.hero-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: rgba(70, 68, 124, 0.1);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: 1.5rem;
    border: 1px solid rgba(70, 68, 124, 0.2);
}

.hero-avatar-container {
    position: relative;
    width: 280px;
    height: 280px;
}

.hero-avatar {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    overflow: hidden;
    z-index: 2;
    background: var(--color-bg-alt);
    box-shadow: var(--shadow-xl);
    animation: morph 8s ease-in-out infinite;
    border: 4px solid var(--color-bg);
}

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

.hero-decoration {
    position: absolute;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    opacity: 0.2;
    z-index: 1;
    filter: blur(20px);
    animation: morph 8s ease-in-out infinite reverse;
}

@keyframes morph {
    0% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }

    50% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }

    100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--color-text-muted);
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-text strong {
    color: var(--color-text);
}

.about-languages {
    font-size: 0.9375rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.highlight-card {
    background: var(--color-bg-card);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.highlight-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.highlight-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ===== Timeline / Experience ===== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.timeline-item {
    position: relative;
    padding-left: 2.5rem;
    padding-bottom: 3rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -6px;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-bg-alt);
    box-shadow: var(--shadow-sm);
}

.timeline-content {
    background: var(--color-bg-card);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.timeline-header {
    margin-bottom: 1rem;
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.timeline-company {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.timeline-meta {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.timeline-details {
    list-style: disc;
    padding-left: 1.25rem;
}

.timeline-details li {
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

.timeline-details li:last-child {
    margin-bottom: 0;
}


.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.result-card {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.35);
}

.result-metric {
    display: block;
    color: var(--color-primary);
    font-size: clamp(1.05rem, 1.8vw, 1.35rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.8rem;
}

.result-card h3 {
    font-size: 1.05rem;
    line-height: 1.35;
    margin-bottom: 0.7rem;
}

.result-card p {
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
}

.result-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.result-tags span {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-full);
    background: rgba(37, 99, 235, 0.08);
    color: var(--color-primary);
    font-size: 0.8125rem;
    font-weight: 500;
}


/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.skill-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(70, 68, 124, 0.1), rgba(14, 165, 233, 0.1));
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.skill-category h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-list li {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    padding-left: 1rem;
    position: relative;
}

.skill-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

/* ===== Projects Section ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    position: relative;
    transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.project-card.featured {
    border-color: var(--color-primary);
    border-width: 2px;
}

.project-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.project-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.project-description {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-primary);
    transition: gap var(--transition);
}

.project-link:hover {
    gap: 0.75rem;
}

.project-link svg {
    transition: transform var(--transition);
}

.project-link:hover svg {
    transform: translate(2px, -2px);
}



/* ===== Professional Website Additions ===== */

.hero-kicker {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.advisory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.advisory-card {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.advisory-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.35);
}

.advisory-kicker {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.advisory-card h3 {
    font-size: 1.25rem;
    line-height: 1.35;
    margin-bottom: 0.75rem;
}

.advisory-card p {
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.section-intro {
    max-width: 760px;
    margin: -1.5rem auto 3rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 1.0625rem;
}

.proof-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.proof-strip span {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.65);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .proof-strip span {
    background: rgba(30, 41, 59, 0.65);
}

.writing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.writing-card {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
}

.writing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.writing-kicker {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.writing-card h3 {
    font-size: 1.2rem;
    line-height: 1.35;
    margin-bottom: 0.75rem;
}

.writing-card p {
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
}

/* ===== Education Section ===== */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.education-card {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

.education-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.education-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    color: var(--color-primary);
}

.education-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.education-focus {
    font-size: 0.9375rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.education-school {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.education-year {
    font-size: 0.875rem;
    color: var(--color-secondary);
    font-weight: 500;
}

/* ===== Contact Section ===== */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition);
    text-decoration: none;
    color: inherit;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    color: inherit;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
    border-radius: 50%;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.contact-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.contact-value {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-text);
    color: var(--color-bg);
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ===== Responsive Design ===== */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
    }

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

    .hero-cta {
        justify-content: center;
    }

    .hero-avatar {
        width: 200px;
        height: 200px;
    }

    .avatar-placeholder {
        font-size: 3rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-highlights {
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        box-shadow: var(--shadow-xl);
        transition: right var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .timeline::before {
        left: 6px;
    }

    .timeline-marker {
        left: 0;
    }

    .timeline-item {
        padding-left: 2rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .education-grid {
        grid-template-columns: 1fr;
    }

    .contact-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding-top: 5rem;
    }

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

    .avatar-placeholder {
        font-size: 2.5rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .highlight-card {
        padding: 1rem;
    }

    .highlight-number {
        font-size: 2rem;
    }
}
/* ===== Writing Note Pages ===== */
.note-page {
    padding-top: 8rem;
}

.note-container {
    max-width: 820px;
}

.note-kicker {
    margin-top: 2rem;
}

.note-title {
    text-align: left;
    margin-bottom: 1rem;
}

.note-body {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
}

.note-body p,
.note-body li {
    color: var(--color-text-muted);
    font-size: 1.02rem;
}

.note-body p + p,
.note-body ul + p {
    margin-top: 1rem;
}

.note-body h2 {
    margin: 2rem 0 1rem;
    font-size: 1.25rem;
}

.note-body ul {
    list-style: disc;
    padding-left: 1.5rem;
}

.note-body li + li {
    margin-top: 0.5rem;
}

.note-cta {
    margin-top: 2rem;
}


.service-intro {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
}

.service-body section + section {
    margin-top: 1.75rem;
}

.service-body section p {
    margin-bottom: 0;
}


.text-separator {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.timeline-compact .timeline-item {
    padding-bottom: 2rem;
}

.timeline-summary {
    color: var(--color-text-muted);
    font-size: 0.975rem;
    line-height: 1.6;
}

.timeline-proof {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.timeline-proof span {
    display: inline-flex;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-full);
    background: rgba(70, 68, 124, 0.08);
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
}

[data-theme="dark"] .timeline-proof span {
    background: rgba(129, 140, 248, 0.12);
}

/* ===== Simplified homepage overrides ===== */
.narrow-container {
    max-width: 1040px;
}

.simple-hero {
    min-height: 78vh;
    padding-top: 8rem;
    padding-bottom: 4rem;
}

.simple-hero::before {
    right: -35%;
    opacity: 0.75;
}

.simple-hero-content {
    justify-content: flex-start;
    max-width: 1040px;
}

.simple-hero .hero-text {
    max-width: 760px;
}

.hero-kicker,
.advisory-kicker,
.writing-kicker {
    display: inline-block;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.simple-hero .hero-name {
    font-size: clamp(2.8rem, 7vw, 5.75rem);
    letter-spacing: -0.06em;
    margin-bottom: 1.5rem;
}

.simple-hero .hero-description {
    max-width: 680px;
    font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.proof-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

.proof-strip span,
.project-row a {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-bg-card);
    color: var(--color-text-muted);
    padding: 0.55rem 0.85rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.section-intro {
    max-width: 760px;
    margin: -1.75rem auto 2.5rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

.simple-grid {
    gap: 1.25rem;
}

.project-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
}

.project-row a:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.simple-contact {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.centered-cta {
    justify-content: center;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .simple-hero {
        min-height: auto;
        padding-top: 7rem;
    }

    .simple-hero .hero-name {
        letter-spacing: -0.04em;
    }

    .proof-strip span,
    .project-row a {
        width: 100%;
        justify-content: center;
    }
}

/* ===== Karpathy/Raschka-inspired minimal homepage ===== */
html {
    scroll-padding-top: 5rem;
}

body {
    background: var(--color-bg);
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    max-width: 780px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
    background: color-mix(in srgb, var(--color-bg) 92%, transparent);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.site-name {
    color: var(--color-text);
    font-weight: 650;
}

.site-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.92rem;
}

.site-links a {
    color: var(--color-text-muted);
}

.site-links a:hover,
.site-name:hover {
    color: var(--color-primary);
}

.minimal-theme-toggle {
    border: 0;
    border-left: 1px solid var(--color-border);
    border-radius: 0;
    margin-left: 0.25rem;
    padding: 0 0 0 1rem;
    color: var(--color-text-muted);
    font: inherit;
    font-size: 1.05rem;
    line-height: 1;
    background: transparent;
}

.minimal-theme-toggle:hover {
    color: var(--color-primary);
    background: transparent;
}

.minimal-site {
    max-width: 740px;
    margin: 0 auto;
    padding: 5.5rem 1.5rem 2rem;
}

.minimal-header {
    margin-bottom: 4.5rem;
}

.minimal-header h1 {
    margin: 0 0 1rem;
    color: var(--color-text);
    font-size: clamp(1.75rem, 3.5vw, 2.4rem);
    line-height: 1.12;
    letter-spacing: -0.035em;
    font-weight: 720;
}

.lede {
    max-width: 680px;
    margin: 0 0 1.15rem;
    color: var(--color-text);
    font-size: clamp(1rem, 1.6vw, 1.12rem);
    line-height: 1.65;
}

.availability {
    margin: 0 0 1rem;
    color: var(--color-text-muted);
    font-size: 1rem;
}

.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    margin: 0;
    font-size: 1rem;
}

.inline-links a:not(:last-child)::after {
    content: '->';
    margin-left: 0.35rem;
    color: var(--color-text-muted);
}

.minimal-section {
    padding: 2.4rem 0;
    border-top: 1px solid var(--color-border);
}

.minimal-section h2 {
    margin: 0 0 1.15rem;
    color: var(--color-text);
    font-size: 1.12rem;
    line-height: 1.3;
    letter-spacing: 0.01em;
}

.minimal-section p,
.plain-list,
.link-list {
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.72;
}

.plain-list,
.link-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.plain-list li,
.link-list li {
    margin-bottom: 0.9rem;
}

.plain-list li:last-child,
.link-list li:last-child {
    margin-bottom: 0;
}

.link-list a,
.plain-list a,
.minimal-section p a {
    color: var(--color-text);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: color-mix(in srgb, var(--color-primary) 35%, transparent);
    text-underline-offset: 0.18em;
}

.link-list a:hover,
.plain-list a:hover,
.minimal-section p a:hover {
    color: var(--color-primary);
    text-decoration-color: currentColor;
}

.link-list span {
    display: block;
    color: var(--color-text-muted);
    margin-top: 0.1rem;
}

.minimal-footer {
    max-width: 740px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
    color: var(--color-text-muted);
    font-size: 0.92rem;
}

@media (max-width: 680px) {
    .site-nav {
        align-items: flex-start;
        flex-direction: column;
        padding: 1rem 1.25rem;
    }

    .site-links {
        flex-wrap: wrap;
        gap: 0.7rem 0.95rem;
    }

    .minimal-theme-toggle {
        border-left: 0;
        margin-left: 0;
        padding-left: 0;
    }

    .minimal-site {
        padding: 3rem 1.25rem 1.5rem;
    }

    .minimal-header {
        margin-bottom: 3rem;
    }
}

.compact-list {
    margin-top: 0.85rem;
}

.minimal-section > p + .compact-list {
    padding-top: 0.2rem;
}

.compact-list li {
    position: relative;
    padding-left: 1.1rem;
}

.compact-list li::before {
    content: '-';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

@media (max-width: 680px) {
    .site-links {
        row-gap: 0.55rem;
    }
}

.proof-line {
    margin: -0.25rem 0 1.15rem;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ===== Fixes: note/service page header, reduced motion ===== */
.note-container .project-link {
    display: inline-flex;
}

.note-kicker {
    display: block;
    margin-top: 2rem;
}

.note-title::after {
    margin: 1rem 0 0;
}

.note-title + .section-intro {
    margin-top: 0;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

/* Sticky site-nav no longer overlays the page, so subpages need less top padding */
.site-nav + .note-page {
    padding-top: 3rem;
}

.note-outro {
    margin-top: 2rem;
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.72;
}

.note-outro a {
    color: var(--color-text);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: color-mix(in srgb, var(--color-primary) 35%, transparent);
    text-underline-offset: 0.18em;
}

.note-outro a:hover {
    color: var(--color-primary);
    text-decoration-color: currentColor;
}

/* Homepage supporting details */
.archive-link, .background-credential {
    margin-top: 1.5rem;
}
.background-credential p {
    font-size: 0.92rem;
}