:root {
    --brand: #b5472f;
    --brand-strong: #872f1d;
    --accent: #0f766e;
    --accent-strong: #0b5b55;
    --ink: #1b1f2a;
    --ink-muted: #495067;
    --ink-soft: #65708b;
    --bg: #f8f4ed;
    --bg-elevated: #fffaf3;
    --bg-panel: #ffffff;
    --border: #e8dece;
    --border-strong: #d8cab5;
    --shadow-soft: 0 10px 30px rgba(30, 20, 5, 0.08);
    --shadow-medium: 0 14px 34px rgba(30, 20, 5, 0.14);
    --shadow-strong: 0 24px 60px rgba(25, 16, 8, 0.16);
    --ring: 0 0 0 3px rgba(181, 71, 47, 0.22);
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-pill: 999px;
    --nav-height: 78px;
    --content-width: min(1140px, calc(100% - 48px));
    --easing: cubic-bezier(0.2, 0.8, 0.2, 1);
    --transition-fast: 180ms var(--easing);
    --transition-base: 300ms var(--easing);
}

body.dark-mode {
    --ink: #f6f6f6;
    --ink-muted: #d6d8df;
    --ink-soft: #a5acba;
    --bg: #10141d;
    --bg-elevated: #151b27;
    --bg-panel: #1d2533;
    --border: #2f3a4d;
    --border-strong: #3d4a62;
    --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.34);
    --shadow-medium: 0 20px 45px rgba(0, 0, 0, 0.42);
    --shadow-strong: 0 26px 65px rgba(0, 0, 0, 0.52);
    --ring: 0 0 0 3px rgba(255, 158, 134, 0.26);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.68;
    min-height: 100vh;
    overflow-x: hidden;
}

main {
    display: block;
}

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

a {
    color: inherit;
}

.page-noise {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: radial-gradient(circle at 1px 1px, rgba(105, 84, 52, 0.08) 1px, transparent 0);
    background-size: 3px 3px;
    opacity: 0.2;
    z-index: 0;
}

body.dark-mode .page-noise {
    opacity: 0.08;
}

.container {
    width: var(--content-width);
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.section-shell {
    padding: 112px 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--brand);
    background: color-mix(in srgb, var(--brand) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--brand) 20%, var(--border));
}

.section-title {
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: clamp(2rem, 2.8vw, 3rem);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 28px;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    backdrop-filter: blur(14px);
    background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
    border-bottom: 1px solid transparent;
    transition: box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}

.navbar.scrolled {
    border-color: var(--border);
    box-shadow: var(--shadow-soft);
    background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
}

.nav-container {
    height: var(--nav-height);
    width: var(--content-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.logo-text {
    text-decoration: none;
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 34px;
    margin-left: auto;
    margin-right: 8px;
}

.nav-link {
    position: relative;
    text-decoration: none;
    color: var(--ink-muted);
    font-weight: 600;
    font-size: 0.93rem;
    letter-spacing: 0.01em;
    padding-bottom: 4px;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    border-radius: var(--radius-pill);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-fast);
    background: linear-gradient(90deg, var(--brand), var(--accent));
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--ink);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
    transform: scaleX(1);
}

.hamburger {
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    background: var(--bg-panel);
    border-radius: 10px;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.hamburger span {
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--ink);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.theme-toggle {
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-panel);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    color: var(--ink);
    transition: border-color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
}

.theme-toggle .icon {
    width: 20px;
    height: 20px;
    stroke-width: 2;
    position: absolute;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.theme-toggle .icon-moon {
    opacity: 0;
    transform: translateY(9px);
}

body.dark-mode .theme-toggle .icon-sun {
    opacity: 0;
    transform: translateY(-9px);
}

body.dark-mode .theme-toggle .icon-moon {
    opacity: 1;
    transform: translateY(0);
}

.hero {
    min-height: calc(100vh - 18px);
    padding: calc(var(--nav-height) + 56px) 0 90px;
    position: relative;
    overflow: clip;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        radial-gradient(circle at 6% 18%, rgba(181, 71, 47, 0.18), transparent 54%),
        radial-gradient(circle at 90% 84%, rgba(15, 118, 110, 0.15), transparent 50%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    align-items: center;
    gap: 40px;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(58px);
    pointer-events: none;
    z-index: 0;
    animation: drift 10s ease-in-out infinite alternate;
}

.orb-1 {
    width: min(50vw, 520px);
    aspect-ratio: 1 / 1;
    top: 70px;
    right: -120px;
    background: rgba(181, 71, 47, 0.24);
}

.orb-2 {
    width: min(34vw, 360px);
    aspect-ratio: 1 / 1;
    bottom: -120px;
    left: -60px;
    background: rgba(15, 118, 110, 0.2);
    animation-duration: 14s;
}

.hero-copy {
    max-width: 640px;
}

.hero-title {
    margin-top: 18px;
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: clamp(2.6rem, 6vw, 5rem);
    line-height: 0.95;
    letter-spacing: -0.04em;
}

.hero-subtitle {
    margin-top: 18px;
    font-size: clamp(1.18rem, 2.2vw, 1.55rem);
    font-weight: 700;
    color: var(--ink-muted);
}

.hero-description {
    margin-top: 18px;
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    color: var(--ink-muted);
    max-width: 62ch;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.btn {
    text-decoration: none;
    font-weight: 700;
    font-size: 0.94rem;
    letter-spacing: 0.01em;
    border-radius: var(--radius-pill);
    padding: 13px 24px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
    border: 1px solid transparent;
}

.btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, var(--brand), #ca6444);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    transform: translateY(-2px);
    box-shadow: var(--shadow-strong);
}

.btn-secondary {
    color: var(--ink);
    border-color: var(--border-strong);
    background: color-mix(in srgb, var(--bg-panel) 86%, transparent);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    transform: translateY(-2px);
    border-color: var(--brand);
}

.hero-metrics {
    margin-top: 34px;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    max-width: 560px;
}

.hero-metrics li {
    background: color-mix(in srgb, var(--bg-panel) 82%, transparent);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    box-shadow: var(--shadow-soft);
}

.hero-metrics strong {
    display: block;
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: 1.65rem;
    line-height: 1;
    color: var(--brand);
}

.hero-metrics span {
    display: block;
    margin-top: 4px;
    color: var(--ink-muted);
    font-weight: 600;
    font-size: 0.86rem;
}

.hero-panel {
    background: color-mix(in srgb, var(--bg-panel) 86%, transparent);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: var(--shadow-medium);
}

.hero-profile {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--brand) 35%, var(--border));
    box-shadow: var(--shadow-soft);
}

.profile-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.hero-panel-body {
    margin-top: 18px;
}

.panel-title {
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ink);
}

.panel-list {
    margin-top: 10px;
    margin-left: 1rem;
    color: var(--ink-muted);
    display: grid;
    gap: 8px;
    font-weight: 600;
}

.about {
    background: linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--bg-elevated) 58%, transparent) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 28px;
    align-items: stretch;
}

.about-text {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-soft);
    color: var(--ink-muted);
    display: grid;
    gap: 14px;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.stat-card {
    background: linear-gradient(140deg, color-mix(in srgb, var(--brand) 10%, var(--bg-panel)), var(--bg-panel));
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-soft);
}

.stat-card h3 {
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    color: var(--brand);
    font-size: 2rem;
    line-height: 1;
}

.stat-card p {
    margin-top: 9px;
    color: var(--ink-muted);
    font-weight: 600;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 14px;
}

.skill-category {
    background: var(--bg-panel);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 22px;
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.skill-category:hover {
    transform: translateY(-4px);
    border-color: color-mix(in srgb, var(--brand) 42%, var(--border));
    box-shadow: var(--shadow-medium);
}

.skill-category h3 {
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: 1.15rem;
    margin-bottom: 13px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    padding: 8px 12px;
    border-radius: var(--radius-pill);
    border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
    color: var(--ink-muted);
    background: color-mix(in srgb, var(--accent) 12%, var(--bg-panel));
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.skill-icon {
    font-size: 1rem;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.skill-label {
    white-space: nowrap;
    line-height: 1;
}

.skill-tag .devicon-express-original,
.skill-tag .devicon-jenkins-plain,
.skill-tag .devicon-tomcat-line,
.skill-tag .devicon-bash-plain {
    color: var(--ink-soft);
}

.skill-tag:hover {
    color: #ffffff;
    background: linear-gradient(135deg, var(--accent), #149e94);
    border-color: transparent;
    transform: translateY(-1px);
    box-shadow: var(--shadow-soft);
}

.skill-tag:hover .skill-icon,
.skill-tag:hover .skill-label {
    color: #ffffff;
}

body.dark-mode .skill-tag .devicon-express-original,
body.dark-mode .skill-tag .devicon-jenkins-plain,
body.dark-mode .skill-tag .devicon-tomcat-line,
body.dark-mode .skill-tag .devicon-bash-plain {
    color: #e2e8f0;
}

.portfolio {
    background: linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--bg-elevated) 45%, transparent) 100%);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.portfolio-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-fast);
}

.portfolio-card:hover {
    transform: translateY(-8px);
    border-color: color-mix(in srgb, var(--brand) 30%, var(--border));
    box-shadow: var(--shadow-strong);
}

.portfolio-cover {
    min-height: 140px;
    padding: 16px;
    display: flex;
    align-items: flex-end;
    position: relative;
    isolation: isolate;
}

.portfolio-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.03) 0%, rgba(0, 0, 0, 0.28) 100%);
    z-index: -1;
}

.portfolio-cover span {
    color: #ffffff;
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.cover-academy {
    background: linear-gradient(140deg, #0f766e, #154d7f);
}

.cover-olympiad {
    background: linear-gradient(140deg, #b5472f, #df8c33);
}

.cover-laundry {
    background: linear-gradient(140deg, #2453a6, #41a6f6);
}

.cover-adda {
    background: linear-gradient(140deg, #75291b, #cc4d2f);
}

.cover-duara {
    background: linear-gradient(140deg, #286045, #32b56d);
}

.cover-masala {
    background: linear-gradient(140deg, #793329, #d76a37);
}

.cover-midnapore {
    background: linear-gradient(140deg, #2a4f84, #5486d6);
}

.cover-cafe {
    background: linear-gradient(140deg, #5f4115, #b68644);
}

.portfolio-content {
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 11px;
    flex-grow: 1;
}

.portfolio-content h3 {
    font-family: 'Space Grotesk', 'Manrope', sans-serif;
    font-size: 1.12rem;
    line-height: 1.2;
}

.portfolio-content p {
    color: var(--ink-muted);
    font-size: 0.93rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-stack span {
    font-size: 0.74rem;
    font-weight: 700;
    padding: 5px 10px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--accent) 10%, var(--bg-panel));
    color: var(--ink-muted);
}

.portfolio-link {
    margin-top: auto;
    text-decoration: none;
    font-size: 0.86rem;
    font-weight: 800;
    color: var(--brand);
    letter-spacing: 0.02em;
    transition: color var(--transition-fast);
}

.portfolio-link:hover,
.portfolio-link:focus-visible {
    color: var(--brand-strong);
}

.contact-panel {
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--brand) 14%, var(--bg-panel)), color-mix(in srgb, var(--accent) 12%, var(--bg-panel)));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 4vw, 42px);
    box-shadow: var(--shadow-medium);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 26px;
    align-items: center;
}

.contact-title {
    margin-top: 16px;
    margin-bottom: 12px;
}

.contact-description {
    color: var(--ink-muted);
    max-width: 52ch;
}

.contact-links {
    display: grid;
    gap: 10px;
}

.contact-links a {
    text-decoration: none;
    background: color-mix(in srgb, var(--bg-panel) 88%, transparent);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--ink);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-links a:hover,
.contact-links a:focus-visible {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--brand) 44%, var(--border));
    box-shadow: var(--shadow-soft);
}

.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0 36px;
    background: color-mix(in srgb, var(--bg-elevated) 90%, transparent);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px 18px;
    color: var(--ink-soft);
    font-size: 0.88rem;
    font-weight: 600;
}

.footer a {
    color: var(--brand);
    text-decoration: none;
    font-weight: 700;
}

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 560ms var(--easing), transform 560ms var(--easing);
}

.reveal.delay-1 {
    transition-delay: 90ms;
}

.reveal.delay-2 {
    transition-delay: 170ms;
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

@keyframes drift {
    from {
        transform: translateY(0) scale(1);
    }

    to {
        transform: translateY(-24px) scale(1.05);
    }
}

@media (max-width: 980px) {
    .hero-grid,
    .about-content,
    .contact-panel {
        grid-template-columns: 1fr;
    }

    .hero-panel {
        max-width: 600px;
    }

    .hero-metrics {
        max-width: 640px;
    }

    .contact-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --content-width: min(1140px, calc(100% - 32px));
        --nav-height: 68px;
    }

    .section-shell {
        padding: 82px 0;
    }

    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 16px;
        right: 16px;
        background: color-mix(in srgb, var(--bg-panel) 92%, transparent);
        border: 1px solid var(--border);
        border-radius: 14px;
        box-shadow: var(--shadow-medium);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        gap: 4px;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-link {
        display: block;
        width: 100%;
        padding: 10px 12px;
        border-radius: 10px;
    }

    .nav-link::after {
        display: none;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
        background: color-mix(in srgb, var(--brand) 13%, transparent);
    }

    .hamburger {
        display: inline-flex;
        order: 2;
    }

    .theme-toggle {
        order: 3;
    }

    .hero {
        padding-top: calc(var(--nav-height) + 34px);
    }

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .hero-metrics {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
    }
}

@media (max-width: 520px) {
    .hero-title {
        font-size: clamp(2.2rem, 11vw, 2.9rem);
    }

    .about-text,
    .contact-panel,
    .hero-panel {
        padding: 20px;
    }

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

:focus-visible {
    outline: none;
    box-shadow: var(--ring);
}

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

    *,
    *::before,
    *::after {
        animation: none !important;
        transition-duration: 0ms !important;
        transition-delay: 0ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}