/* ===== CSS Variables & Design System ===== */
:root {
    --color-bg-primary: #070b0f;
    --color-bg-secondary: #0d1117;
    --color-bg-tertiary: #161b22;
    --color-bg-card: #0f141a;

    --color-accent: #ffd700;
    --color-accent-hover: #ffe44d;
    --color-accent-dim: rgba(255, 215, 0, 0.08);
    --color-accent-glow: rgba(255, 215, 0, 0.25);

    --color-text-primary: #e6edf3;
    --color-text-secondary: #8b949e;
    --color-text-tertiary: #484f58;

    --color-border: #21262d;
    --color-border-light: #30363d;

    --font-display: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 24px rgba(255, 215, 0, 0.3);
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
    color: inherit;
}

/* ===== Container ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    background: rgba(7, 11, 15, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--color-border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
}

.logo-icon {
    color: var(--color-accent);
    font-size: 1.1rem;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.8px;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: #070b0f;
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-light);
}

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

/* ===== Section Shared ===== */
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.section-label.light {
    color: rgba(255, 215, 0, 0.7);
}

.label-icon {
    font-size: 0.65rem;
}

.section-header.centered {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title-lg {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    color: var(--color-text-secondary);
    max-width: 540px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    padding-top: 90px;
    padding-bottom: var(--spacing-3xl);
    display: flex;
    align-items: center;
    position: relative;
    /* overflow removed to prevent clipping floating elements */
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-2xl);
    align-items: center;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.85rem;
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.badge-dot {
    width: 7px;
    height: 7px;
    background: #4ade80;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(1.2);
    }
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 10vw, 7.5rem);
    font-weight: 900;
    line-height: 0.95;
    letter-spacing: -3px;
    margin-bottom: var(--spacing-lg);
}

.name-line {
    display: block;
}

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

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.tag {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
    padding: 0.25rem 0.6rem;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.hero-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 480px;
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

/* Profile Photo */
.hero-image {
    position: relative;
}

.profile-photo {
    position: relative;
    display: inline-block;
}

.photo-ring {
    position: absolute;
    inset: 18px -6px;
    /* width: 200%; */
    border-radius: var(--radius-2xl);
    background: linear-gradient(135deg, var(--color-accent), transparent, rgba(255, 215, 0, 0.15));
    z-index: 0;
    opacity: 0.18;
}

.profile-img {
    width: 300px;
    height: 370px;
    object-fit: cover;
    object-position: top center;
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-border);
    position: relative;
    z-index: 1;
    display: block;
}

.floating-badge {
    position: absolute;
    z-index: 2;
    background: rgba(13, 17, 23, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    color: var(--color-text-primary);
}

.floating-badge-1 {
    bottom: 70px;
    left: -80px;
    animation: float 3s ease-in-out infinite;
}

.floating-badge-2 {
    top: 50px;
    right: -50px;
    animation: float 3s ease-in-out infinite 1.5s;
    border-color: var(--color-accent-glow);
}

@keyframes float {

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

    50% {
        transform: translateY(-8px);
    }
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text-tertiary), transparent);
    animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }

    50% {
        transform: scaleY(1);
        transform-origin: top;
    }

    51% {
        transform: scaleY(1);
        transform-origin: bottom;
    }

    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

/* ===== About / Education Section ===== */
.about {
    padding: var(--spacing-3xl) 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.education-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    transition: border-color var(--transition-base);
}

.education-card:hover {
    border-color: var(--color-border-light);
}

.edu-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    color: var(--color-accent);
}

.edu-school {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.edu-degree {
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.edu-meta {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.edu-details {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.edu-detail-item {
    display: flex;
    gap: 0.5rem;
    font-size: 0.85rem;
    align-items: flex-start;
}

.detail-label {
    font-weight: 600;
    color: var(--color-text-secondary);
    min-width: 60px;
    flex-shrink: 0;
}

.detail-value {
    color: var(--color-text-primary);
}

.detail-value.accent {
    color: var(--color-accent);
    font-weight: 700;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.highlight-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

.highlight-card:hover {
    border-color: var(--color-border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.highlight-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.highlight-card h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.highlight-card p {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ===== Skills Section ===== */
.skills {
    padding: var(--spacing-3xl) 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-md);
}

.skill-category {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

.skill-category:hover {
    border-color: rgba(255, 215, 0, 0.3);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.05);
    transform: translateY(-4px);
}

.skill-cat-icon {
    width: 40px;
    height: 40px;
    background: var(--color-accent-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.skill-cat-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.skill-tags {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.skill-tag {
    font-size: 0.78rem;
    color: var(--color-text-secondary);
    padding: 0.3rem 0.5rem;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    color: var(--color-accent);
    border-color: rgba(255, 215, 0, 0.3);
}

/* ===== Projects Section ===== */
.projects {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.project-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
    position: relative;
}

.project-item:first-child {
    border-top: 1px solid var(--color-border);
}

.project-item:hover {
    background: rgba(255, 215, 0, 0.02);
    border-radius: var(--radius-md);
}

.project-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-border-light);
    line-height: 1;
    padding-top: 4px;
    transition: color var(--transition-base);
}

.project-item:hover .project-number {
    color: var(--color-accent);
}

.project-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.project-tech span {
    font-size: 0.72rem;
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.2rem 0.5rem;
}

.project-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.proj-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.7rem;
    transition: all var(--transition-fast);
}

.proj-link:hover {
    color: var(--color-accent);
    border-color: rgba(255, 215, 0, 0.4);
    background: var(--color-accent-dim);
}

.project-bullets {
    list-style: disc;
    padding-left: 1.2rem;
}

.project-bullets li {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 0.3rem;
}

.project-bullets li strong {
    color: var(--color-text-primary);
}

/* ===== Experience Section ===== */
.experience {
    padding: var(--spacing-3xl) 0;
}

.timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 16px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-border), transparent);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-xl);
    position: relative;
}

.timeline-dot {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-accent);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    margin-top: 4px;
}

.timeline-content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md) var(--spacing-lg);
    flex: 1;
    transition: border-color var(--transition-base);
}

.timeline-content:hover {
    border-color: var(--color-border-light);
}

.timeline-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.timeline-date {
    font-size: 0.78rem;
    color: var(--color-text-secondary);
}

.timeline-badge {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timeline-badge.active {
    background: rgba(74, 222, 128, 0.1);
    border-color: rgba(74, 222, 128, 0.3);
    color: #4ade80;
}

.timeline-role {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.timeline-company {
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.timeline-bullets {
    list-style: disc;
    padding-left: 1.2rem;
}

.timeline-bullets li {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 0.25rem;
}

.timeline-bullets li strong {
    color: var(--color-text-primary);
}

/* ===== Achievements Section ===== */
.achievements {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.achievement-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: all var(--transition-base);
}

.achievement-card:hover {
    border-color: var(--color-border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.achievement-card.publication {
    border-color: rgba(255, 215, 0, 0.2);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.04), transparent);
}

.ach-icon {
    font-size: 2rem;
    color: var(--color-accent);
}

.ach-body h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.ach-body p {
    font-size: 0.82rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.ach-body p strong {
    color: var(--color-text-primary);
}

.ach-tag {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--color-accent);
    background: var(--color-accent-dim);
    border: 1px solid rgba(255, 215, 0, 0.15);
    border-radius: var(--radius-sm);
    padding: 0.2rem 0.5rem;
}

.ach-link {
    font-size: 0.78rem;
    color: var(--color-accent);
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.ach-link:hover {
    opacity: 0.7;
}

/* ===== Volunteering ===== */
.volunteering {
    padding: var(--spacing-3xl) 0;
}

.vol-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.vol-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    text-align: center;
}

.vol-card:hover {
    border-color: rgba(255, 215, 0, 0.25);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.vol-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-accent);
}

.vol-card h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.vol-card p {
    font-size: 0.83rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    bottom: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.contact-content {
    max-width: 640px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.contact-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.contact-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.contact-email-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    transition: opacity var(--transition-fast);
}

.contact-email-link:hover {
    opacity: 0.75;
}

.contact-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

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

.social-link {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

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

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
}

.footer-text {
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

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

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

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

/* -- Global overflow guard -- */
html,
body {
    overflow-x: hidden;
    width: 100%;
}

/* .container {
    overflow-x: hidden removed to allow floating elements to stick out
} */

.timeline-company,
.timeline-role,
.project-title,
.fe-title {
    word-break: break-word;
    overflow-wrap: break-word;
}

/* ---------- ≤ 1060px : large tablets ---------- */
@media (max-width: 1060px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .floating-badge-1,
    .floating-badge-2 {
        /* Keep visible but pulled closer for tablet */
        display: flex;
        left: -30px;
        right: -25px;
    }

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

    .fe-card-featured {
        grid-column: span 2;
    }

    .project-title {
        font-size: 1.25rem;
    }
}

/* ---------- ≤ 900px : portrait tablets ---------- */
@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-description {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

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

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

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

    .hero-image {
        order: -1;
        display: flex;
        justify-content: center;
    }

    .profile-img {
        width: 220px;
        height: 270px;
        margin-top: var(--spacing-md);
    }

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

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

    /* Experience */
    .timeline-meta {
        flex-wrap: wrap;
        gap: 0.4rem;
    }
}

/* ---------- ≤ 768px : phones landscape / small tablets ---------- */
@media (max-width: 768px) {

    /* Nav */
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-bg-secondary);
        padding: var(--spacing-3xl) var(--spacing-lg);
        transition: right var(--transition-base);
        border-left: 1px solid var(--color-border);
        z-index: 999;
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }

    .menu-toggle {
        display: flex;
    }

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

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

    /* Top Projects list */
    .project-item {
        grid-template-columns: 44px 1fr;
        gap: var(--spacing-sm);
        padding: var(--spacing-md) 0;
    }

    .project-number {
        font-size: 1.8rem;
    }

    .project-title {
        font-size: 1.1rem;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .project-links {
        flex-wrap: wrap;
        gap: 0.35rem;
    }

    .proj-link {
        font-size: 0.72rem;
        padding: 0.25rem 0.55rem;
    }

    /* All-projects grid */
    .fe-projects-grid {
        grid-template-columns: 1fr 1fr;
    }

    .fe-card-featured {
        grid-column: span 2;
    }

    .fe-card-image {
        height: 160px;
    }

    .fe-card-overlay {
        flex-wrap: wrap;
        gap: 0.35rem;
        padding: 0.5rem;
    }

    .fe-overlay-btn {
        font-size: 0.72rem;
        padding: 0.35rem 0.7rem;
    }

    /* Filter buttons */
    .project-filters {
        gap: 0.3rem;
    }

    .filter-btn {
        font-size: 0.7rem;
        padding: 0.3rem 0.65rem;
    }

    /* Experience / timeline */
    .timeline::before {
        left: 12px;
    }

    .timeline-dot {
        width: 26px;
        height: 26px;
        flex-shrink: 0;
    }

    .timeline-item {
        gap: var(--spacing-sm);
    }

    .timeline-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .timeline-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.3rem;
    }

    .timeline-role {
        font-size: 1rem;
    }

    .timeline-company {
        font-size: 0.82rem;
    }
}

/* ---------- ≤ 560px : phones portrait ---------- */
@media (max-width: 560px) {
    .hero-name {
        font-size: clamp(2.8rem, 18vw, 4.5rem);
        letter-spacing: -1px;
    }

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

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

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

    .contact-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

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

    /* Top Projects */
    .project-item {
        grid-template-columns: 36px 1fr;
        gap: 0.5rem;
        padding: var(--spacing-sm) 0;
    }

    .project-number {
        font-size: 1.4rem;
    }

    .project-title {
        font-size: 0.95rem;
    }

    /* All-projects grid → single column */
    .fe-projects-grid {
        grid-template-columns: 1fr !important;
    }

    .fe-card-featured {
        grid-column: span 1 !important;
    }

    .fe-card-image {
        height: 145px;
    }

    /* Experience */
    .timeline-item {
        flex-direction: column;
        gap: 0.5rem;
    }

    .timeline::before {
        display: none;
    }

    .timeline-dot {
        display: none;
    }

    .timeline-content {
        padding: var(--spacing-sm);
        border-radius: var(--radius-lg);
    }

    /* Floating Badges Mobile */
    .floating-badge {
        font-size: 0.65rem;
        padding: 0.35rem 0.6rem;
        display: inline-flex;
        width: max-content;
        gap: 0.35rem;
        align-items: center;
    }

    .floating-badge-1 {
        left: -5px;
        bottom: 30px;
    }

    .floating-badge-2 {
        right: -5px;
        top: 30px;
    }
}



/* ===== Projects: Subsection Dividers ===== */
.projects-featured,
.projects-frontend {
    margin-bottom: var(--spacing-2xl);
}

.projects-featured>h3,
.projects-frontend>h3 {
    display: none;
    /* hidden — we use subsec-header instead */
}

.subsec-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.subsec-tag {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.12);
    padding: 0.35rem 0.85rem;
    border-radius: 99px;
    border: 1px solid rgba(99, 102, 241, 0.25);
    white-space: nowrap;
}

.subsec-tag.fe-tag {
    color: #34d399;
    background: rgba(52, 211, 153, 0.1);
    border-color: rgba(52, 211, 153, 0.25);
}

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

/* ===== Frontend Project Cards ===== */
.fe-projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 1400px) {
    .fe-projects-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.fe-card-featured {
    grid-column: span 2;
}

.fe-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
}

.fe-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.fe-card-featured:hover {
    border-color: rgba(52, 211, 153, 0.45);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

/* Image / placeholder area */
.fe-card-image {
    position: relative;
    width: 100%;
    height: 190px;
    overflow: hidden;
    flex-shrink: 0;
}

.fe-card-featured .fe-card-image {
    height: 220px;
}

.fe-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

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

.placeholder-img {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: opacity 0.25s ease;
}

.fe-card:hover .placeholder-content {
    opacity: 0;
}

.placeholder-icon {
    font-size: 2.5rem;
    filter: grayscale(0.2);
}

.placeholder-label {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    opacity: 0.7;
    letter-spacing: 0.05em;
}

/* Innovative Premium Badge */
.premium-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 4px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.5rem;
    font-weight: 600;
    color: var(--color-accent);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 10;
    overflow: hidden;
    pointer-events: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.premium-badge i {
    font-size: 0.5rem;
    filter: drop-shadow(0 0 5px var(--color-accent));
}

/* Shine Sweep Animation */
.premium-badge::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right,
            transparent,
            rgba(255, 255, 255, 0.2),
            transparent);
    transform: skewX(-25deg);
    animation: shineSweep 4s infinite;
}

@keyframes shineSweep {
    0% {
        left: -100%;
    }

    20% {
        left: 150%;
    }

    100% {
        left: 150%;
    }
}

.fe-card:hover .premium-badge {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    transition: all 0.3s ease;
}

.fe-card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 20, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    align-content: center;
    row-gap: 0.35rem;
    column-gap: 0.5rem;
    padding: 0.5rem;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.fe-card:hover .fe-card-overlay {
    opacity: 1;
}

.fe-overlay-btn {
    display: inline-block;
    padding: 0.55rem 1.1rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--color-accent);
    color: #fff;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
}

.fe-overlay-btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
}

.fe-overlay-btn.ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #fff;
}

.fe-overlay-btn.ghost:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Card body */
.fe-card-body {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    flex: 1;
}

.fe-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
}

.fe-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.fe-featured-badge {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    white-space: nowrap;
}

.fe-date {
    font-size: 0.72rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
    margin-top: 0.1rem;
}

.fe-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.fe-tech span {
    font-size: 0.68rem;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-accent);
    border: 1px solid rgba(99, 102, 241, 0.2);
    font-weight: 500;
}

.fe-card-featured .fe-tech span {
    background: rgba(52, 211, 153, 0.1);
    color: #34d399;
    border-color: rgba(52, 211, 153, 0.2);
}

.fe-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.fe-bullets li {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    padding-left: 0.9rem;
    position: relative;
    line-height: 1.5;
}

.fe-bullets li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

.fe-card-featured .fe-bullets li::before {
    color: #34d399;
}

/* ===== Filter Buttons ===== */
.project-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.filter-btn {
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border-light);
    background: var(--color-bg-card);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.3px;
}

.filter-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.filter-btn.active {
    background: var(--color-accent);
    color: #070b0f;
    border-color: var(--color-accent);
}

/* hidden cards when filtered */
.fe-card.hidden {
    display: none;
}

/* ===== Subsection Tag Colors ===== */
.subsec-tag {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.fe-tag {
    background: rgba(56, 189, 248, 0.12);
    color: #38bdf8;
    border: 1px solid rgba(56, 189, 248, 0.25);
}

.fs-tag {
    background: rgba(168, 85, 247, 0.12);
    color: #a855f7;
    border: 1px solid rgba(168, 85, 247, 0.25);
}

.be-tag {
    background: rgba(74, 222, 128, 0.12);
    color: #4ade80;
    border: 1px solid rgba(74, 222, 128, 0.25);
}

.cpp-tag {
    background: rgba(251, 146, 60, 0.12);
    color: #fb923c;
    border: 1px solid rgba(251, 146, 60, 0.25);
}

.all-tag {
    background: var(--color-accent-dim);
    color: var(--color-accent);
    border: 1px solid rgba(255, 215, 0, 0.25);
}

.subsec-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

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

/* ===== proj-date inline ===== */
.proj-date {
    font-size: 0.72rem;
    color: var(--color-text-tertiary);
    font-weight: 400;
    margin-left: 0.4rem;
}

/* ===== All projects section ===== */
.all-projects-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

/* ===== Tech Tag Highlights ===== */
.fe-tech span[class*="hl-"],
.project-tech span[class*="hl-"],
.skill-tags span[class*="hl-"] {
    font-weight: 700;
}

/* React – cyan-blue */
.hl-react {
    background: rgba(97, 218, 251, 0.15) !important;
    color: #61dafb !important;
    border-color: rgba(97, 218, 251, 0.3) !important;
}

/* Next.js – white */
.hl-next {
    background: rgba(220, 220, 220, 0.12) !important;
    color: #e0e0e0 !important;
    border-color: rgba(200, 200, 200, 0.25) !important;
}

/* Node.js – green */
.hl-node {
    background: rgba(104, 160, 99, 0.18) !important;
    color: #68a063 !important;
    border-color: rgba(104, 160, 99, 0.35) !important;
}

/* TypeScript – blue */
.hl-ts {
    background: rgba(49, 120, 198, 0.18) !important;
    color: #3178c6 !important;
    border-color: rgba(49, 120, 198, 0.35) !important;
}

/* JavaScript – yellow */
.hl-js {
    background: rgba(240, 219, 79, 0.15) !important;
    color: #f0db4f !important;
    border-color: rgba(240, 219, 79, 0.3) !important;
}

/* Python – blue-yellow */
.hl-py {
    background: rgba(55, 118, 171, 0.18) !important;
    color: #4b8bbe !important;
    border-color: rgba(55, 118, 171, 0.3) !important;
}

/* Star icon accent color */
.text-accent {
    color: var(--color-accent);
}