/* Base reset */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --bg-deep: #050608;
    --bg-mid: #0b0d10;
    --bg-soft: #13161b;
    --glass-strong: rgba(24, 27, 33, 0.74);
    --glass-soft: rgba(16, 18, 23, 0.58);
    --glass-muted: rgba(255, 255, 255, 0.03);
    --text-primary: #f3f5f8;
    --text-secondary: #a9afb8;
    --text-muted: #818894;
    --accent-silver: #d6dae1;
    --accent-soft: #b8bec8;
    --border-color: rgba(216, 221, 229, 0.18);
    --border-strong: rgba(221, 226, 234, 0.34);
    --shadow-soft: 0 14px 36px rgba(0, 0, 0, 0.42);
    --shadow-deep: 0 28px 60px rgba(0, 0, 0, 0.55);
    --glow-silver: rgba(214, 218, 225, 0.24);
    --glow-intense: rgba(225, 229, 236, 0.34);
    --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-gentle: cubic-bezier(0.32, 0, 0.2, 1);
    --dur-fast: 0.24s;
    --dur-mid: 0.42s;
    --dur-slow: 0.8s;
    --nav-height: 82px;
    --nav-top-gap: 16px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-size-adjust: 100%;
}

body {
    font-family: "Segoe UI", "SF Pro Text", system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 12% -10%, rgba(198, 203, 212, 0.18) 0%, transparent 38%),
        radial-gradient(circle at 88% 0%, rgba(132, 138, 149, 0.16) 0%, transparent 42%),
        linear-gradient(140deg, var(--bg-deep) 0%, var(--bg-mid) 48%, var(--bg-soft) 100%);
    position: relative;
}

body::before,
body::after {
    content: "";
    position: fixed;
    pointer-events: none;
    z-index: -1;
}

body::before {
    width: 36rem;
    height: 36rem;
    border-radius: 50%;
    top: -11rem;
    left: -10rem;
    background: radial-gradient(circle, rgba(214, 218, 225, 0.14) 0%, transparent 62%);
    filter: blur(24px);
    animation: ambientFloat 20s ease-in-out infinite;
}

body::after {
    width: 30rem;
    height: 30rem;
    border-radius: 50%;
    right: -9rem;
    bottom: -11rem;
    background: radial-gradient(circle, rgba(176, 183, 194, 0.11) 0%, transparent 66%);
    filter: blur(28px);
    animation: ambientFloat 24s ease-in-out infinite reverse;
}

a,
button {
    font: inherit;
    color: inherit;
}

a {
    text-decoration: none;
}

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

a:focus,
button:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid rgba(214, 218, 225, 0.52);
    outline-offset: 2px;
    border-radius: 12px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: var(--nav-top-gap);
    left: 50%;
    transform: translateX(-50%);
    width: min(1200px, calc(100% - 1rem));
    border: 1px solid var(--border-color);
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(22, 25, 30, 0.88) 0%, rgba(12, 14, 18, 0.8) 100%);
    backdrop-filter: blur(24px) saturate(150%);
    -webkit-backdrop-filter: blur(24px) saturate(150%);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.52);
    z-index: 1200;
    transition: transform var(--dur-mid) var(--ease-smooth), border-color var(--dur-mid) var(--ease-smooth), background var(--dur-mid) var(--ease-smooth), box-shadow var(--dur-mid) var(--ease-smooth);
}

.navbar.scrolled {
    border-color: var(--border-strong);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.6);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: calc(var(--nav-height) - 16px);
    padding: 0.65rem 1.15rem;
}

.nav-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: filter var(--dur-mid) var(--ease-smooth), transform var(--dur-mid) var(--ease-smooth);
}

.nav-logo:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.5rem 1rem;
    border-radius: 14px;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
    transition: color var(--dur-mid) var(--ease-smooth), background var(--dur-mid) var(--ease-smooth), border-color var(--dur-mid) var(--ease-smooth), transform var(--dur-mid) var(--ease-smooth), box-shadow var(--dur-mid) var(--ease-smooth);
    border: 1px solid transparent;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(214, 218, 225, 0.08);
    border-color: rgba(214, 218, 225, 0.18);
    transform: translateY(-1px);
}

.nav-link.active {
    color: var(--text-primary);
    background: rgba(214, 218, 225, 0.15);
    border-color: rgba(214, 218, 225, 0.28);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.nav-toggle {
    width: 44px;
    height: 44px;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--border-color);
    border-radius: 13px;
    background: rgba(214, 218, 225, 0.06);
    cursor: pointer;
    transition: transform var(--dur-mid) var(--ease-smooth), background var(--dur-mid) var(--ease-smooth), border-color var(--dur-mid) var(--ease-smooth);
}

.nav-toggle:hover {
    transform: translateY(-1px);
    background: rgba(214, 218, 225, 0.12);
    border-color: var(--border-strong);
}

.nav-toggle span {
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--accent-silver);
    transition: transform var(--dur-mid) var(--ease-smooth), opacity var(--dur-fast) var(--ease-gentle);
}

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

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

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

.nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(4, 5, 7, 0.56);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-mid) var(--ease-smooth);
    z-index: 1100;
}

body.menu-open .nav-backdrop {
    opacity: 1;
    pointer-events: auto;
}

body.menu-open {
    overflow: hidden;
}

/* Layout */
.container {
    width: min(1200px, calc(100% - 2rem));
    margin: 0 auto;
    padding-top: calc(var(--nav-height) + 2.6rem);
    padding-bottom: 2rem;
}

.header {
    text-align: center;
    padding: 3.8rem 0 2.4rem;
    position: relative;
}

.logo-container {
    position: relative;
    display: inline-block;
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(34vw, 320px);
    aspect-ratio: 1;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(214, 218, 225, 0.34) 0%, rgba(214, 218, 225, 0.06) 42%, transparent 72%);
    filter: blur(4px);
    pointer-events: none;
    z-index: 0;
    animation: softPulse 8s ease-in-out infinite;
}

.name {
    position: relative;
    z-index: 1;
    font-size: clamp(2.2rem, 7vw, 4.2rem);
    line-height: 1.08;
    font-weight: 800;
    letter-spacing: 0.01em;
    background: linear-gradient(125deg, #f5f7fb 0%, #d2d7df 52%, #f6f8fb 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 24px rgba(214, 218, 225, 0.28);
}

.tagline {
    margin-top: 1rem;
    color: var(--accent-soft);
    font-size: clamp(0.95rem, 2.2vw, 1.3rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.section-title {
    text-align: center;
    font-size: clamp(1.7rem, 4vw, 2.6rem);
    margin: 4rem 0 2.3rem;
    color: var(--accent-silver);
    position: relative;
    letter-spacing: 0.02em;
}

.section-title::before {
    content: "";
    position: absolute;
    left: 50%;
    top: -18px;
    width: min(140px, 50vw);
    height: 1px;
    transform: translateX(-50%);
    background: linear-gradient(90deg, transparent 0%, rgba(214, 218, 225, 0.75) 50%, transparent 100%);
}

/* Shared glass cards */
.profile-card,
.service-item,
.contact-card,
.project-card,
.skill-tag,
.unlock-btn {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    background: linear-gradient(145deg, var(--glass-strong) 0%, var(--glass-soft) 100%);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(20px) saturate(135%);
    -webkit-backdrop-filter: blur(20px) saturate(135%);
    transition: transform var(--dur-mid) var(--ease-smooth), border-color var(--dur-mid) var(--ease-smooth), box-shadow var(--dur-mid) var(--ease-smooth), background var(--dur-mid) var(--ease-smooth), color var(--dur-mid) var(--ease-smooth);
}

.profile-card::before,
.service-item::before,
.contact-card::before,
.project-card::before,
.skill-tag::before,
.unlock-btn::before {
    content: "";
    position: absolute;
    inset: -55% -25%;
    pointer-events: none;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(224, 229, 236, 0.22) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--dur-mid) var(--ease-smooth);
}

.profile-card:hover,
.service-item:hover,
.contact-card:hover,
.project-card:hover,
.skill-tag:hover,
.unlock-btn:hover {
    transform: translateY(-5px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-deep), 0 0 0 1px rgba(214, 218, 225, 0.12);
}

.profile-card:hover::before,
.service-item:hover::before,
.contact-card:hover::before,
.project-card:hover::before,
.skill-tag:hover::before,
.unlock-btn:hover::before {
    opacity: 1;
}

.card-glow {
    position: absolute;
    inset: -55% -25%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(222, 227, 235, 0.22) 0%, transparent 50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--dur-mid) var(--ease-smooth);
}

.project-card:hover .card-glow,
.profile-card:hover .card-glow,
.unlock-btn:hover .card-glow {
    opacity: 1;
}

.profile-card {
    padding: 2.6rem;
}

.profile-content h2 {
    color: var(--accent-silver);
    font-size: clamp(1.35rem, 3vw, 2rem);
    margin-bottom: 1.1rem;
}

.profile-content p {
    color: var(--text-secondary);
    font-size: 1.03rem;
    margin-bottom: 0.95rem;
}

.profile-content p:last-child {
    margin-bottom: 0;
}

/* Grids */
.service-grid,
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.service-item,
.contact-card {
    padding: 1.9rem;
    text-align: center;
    color: inherit;
    display: block;
}

.service-icon,
.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin-bottom: 1rem;
    border-radius: 16px;
    background: rgba(214, 218, 225, 0.09);
    border: 1px solid rgba(214, 218, 225, 0.16);
    font-size: 1.7rem;
    color: var(--accent-silver);
}

.service-item h3,
.contact-card h3 {
    color: var(--accent-silver);
    font-size: 1.2rem;
    margin-bottom: 0.7rem;
}

.service-item p,
.contact-card p {
    color: var(--text-secondary);
    font-size: 0.96rem;
}

/* Projects */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.project-card {
    min-height: 210px;
    padding: 1.2rem;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    border-radius: 16px;
}

.project-card h3 {
    color: var(--accent-silver);
    font-size: 1.03rem;
    margin-bottom: 0.45rem;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.83rem;
    line-height: 1.45;
    margin-bottom: 0.7rem;
}

.project-icon {
    width: 42px;
    height: 42px;
    margin-bottom: 0.75rem;
    color: var(--accent-soft);
    transition: transform var(--dur-mid) var(--ease-smooth), color var(--dur-mid) var(--ease-smooth);
}

.project-card:hover .project-icon {
    transform: translateY(-2px) scale(1.05);
    color: var(--accent-silver);
}

.project-link {
    margin-top: auto;
    color: var(--accent-soft);
    font-size: 0.79rem;
    letter-spacing: 0.04em;
    transition: transform var(--dur-mid) var(--ease-smooth), color var(--dur-mid) var(--ease-smooth);
}

.project-card:hover .project-link {
    color: var(--text-primary);
    transform: translateX(3px);
}

.project-card.coming-soon {
    opacity: 0.74;
    cursor: default;
}

/* Skills */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    justify-content: center;
    margin: 2.2rem 0;
}

.skill-tag {
    border-radius: 999px;
    padding: 0.62rem 1.2rem;
    color: var(--accent-soft);
    font-weight: 600;
    font-size: 0.94rem;
}

/* Contact */
.contact {
    scroll-margin-top: 120px;
}

.availability {
    text-align: center;
    color: var(--accent-soft);
    margin-top: 1.4rem;
    font-style: italic;
}

/* Unlock button */
.unlock-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.62rem;
    padding: 0.95rem 2rem;
    color: var(--text-primary);
    border-radius: 15px;
    font-weight: 600;
    cursor: pointer;
    background: linear-gradient(145deg, rgba(30, 34, 42, 0.72) 0%, rgba(17, 20, 25, 0.84) 100%);
}

.lock-icon {
    font-size: 1rem;
    transition: transform var(--dur-mid) var(--ease-smooth);
}

.unlock-btn:hover .lock-icon {
    transform: scale(1.08);
}

/* Footer */
.footer {
    margin-top: 3.2rem;
    padding: 2.1rem 0 1rem;
    border-top: 1px solid rgba(214, 218, 225, 0.15);
    text-align: center;
    color: var(--text-muted);
}

/* Soft reveal animation hooks */
.section-reveal {
    opacity: 0;
    transform: translateY(26px) scale(0.985);
    filter: blur(6px);
    transition: opacity var(--dur-slow) var(--ease-smooth), transform var(--dur-slow) var(--ease-smooth), filter var(--dur-slow) var(--ease-smooth);
    transition-delay: var(--reveal-delay, 0ms);
}

.section-reveal.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
}

/* Keyframes */
@keyframes ambientFloat {
    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        transform: translate3d(0, 16px, 0) scale(1.05);
    }
}

@keyframes softPulse {
    0%,
    100% {
        opacity: 0.58;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.82;
        transform: translate(-50%, -50%) scale(1.07);
    }
}

/* Responsive */
@media (max-width: 980px) {
    :root {
        --nav-height: 76px;
        --nav-top-gap: 10px;
    }

    .navbar {
        width: calc(100% - 0.75rem);
        border-radius: 20px;
    }

    .nav-container {
        min-height: calc(var(--nav-height) - 16px);
        padding: 0.55rem 0.8rem;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .nav-menu {
        position: fixed;
        top: calc(var(--nav-top-gap) + var(--nav-height) - 10px);
        left: 0.75rem;
        right: 0.75rem;
        margin: 0;
        padding: 0.6rem;
        display: flex;
        flex-direction: column;
        gap: 0.35rem;
        border: 1px solid var(--border-strong);
        border-radius: 22px;
        background: linear-gradient(160deg, rgba(20, 23, 30, 0.94) 0%, rgba(10, 12, 16, 0.92) 100%);
        backdrop-filter: blur(26px) saturate(150%);
        -webkit-backdrop-filter: blur(26px) saturate(150%);
        box-shadow: 0 22px 45px rgba(0, 0, 0, 0.58);
        max-height: min(72vh, 560px);
        overflow-y: auto;
        opacity: 0;
        transform: translateY(-14px) scale(0.98);
        visibility: hidden;
        pointer-events: none;
        transition: opacity var(--dur-mid) var(--ease-smooth), transform var(--dur-mid) var(--ease-smooth), visibility var(--dur-mid) var(--ease-smooth);
        z-index: 1250;
    }

    .nav-menu.active {
        opacity: 1;
        transform: translateY(0) scale(1);
        visibility: visible;
        pointer-events: auto;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        min-height: 50px;
        justify-content: flex-start;
        padding: 0.75rem 0.95rem;
        border-radius: 14px;
        border: 1px solid rgba(214, 218, 225, 0.12);
        background: rgba(255, 255, 255, 0.02);
    }

    .container {
        width: calc(100% - 1.25rem);
        padding-top: calc(var(--nav-height) + 2.1rem);
    }

    .header {
        padding: 3rem 0 1.9rem;
    }

    .tagline {
        letter-spacing: 0.04em;
    }
}

@media (max-width: 768px) {
    .section-title {
        margin: 3rem 0 1.9rem;
    }

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

    .project-grid {
        grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
        gap: 0.75rem;
    }

    .project-card {
        min-height: 190px;
        padding: 1rem;
    }

    .profile-card,
    .service-item,
    .contact-card {
        padding: 1.5rem;
        border-radius: 16px;
    }
}

@media (max-width: 560px) {
    .container {
        width: calc(100% - 0.8rem);
        padding-top: calc(var(--nav-height) + 1.8rem);
    }

    .nav-container {
        padding: 0.45rem 0.62rem;
    }

    .nav-logo img {
        height: 34px;
    }

    .nav-menu {
        left: 0.45rem;
        right: 0.45rem;
        top: calc(var(--nav-top-gap) + var(--nav-height) - 12px);
    }

    .header {
        padding: 2.2rem 0 1.2rem;
    }

    .tagline {
        font-size: 0.82rem;
        letter-spacing: 0.03em;
        line-height: 1.5;
    }

    .section-title {
        font-size: 1.45rem;
        margin: 2.3rem 0 1.45rem;
    }

    .section-title::before {
        top: -13px;
    }

    .service-item,
    .contact-card {
        text-align: left;
    }

    .service-icon,
    .contact-icon {
        width: 48px;
        height: 48px;
        border-radius: 14px;
        font-size: 1.4rem;
    }

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

    .project-card {
        min-height: 176px;
    }

    .unlock-btn {
        width: 100%;
        max-width: 320px;
    }

    .footer {
        font-size: 0.9rem;
    }
}

@media (hover: none) and (pointer: coarse) {
    .profile-card:hover,
    .service-item:hover,
    .contact-card:hover,
    .project-card:hover,
    .skill-tag:hover,
    .unlock-btn:hover,
    .nav-link:hover,
    .nav-logo:hover,
    .nav-toggle:hover {
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .section-reveal {
        opacity: 1;
        filter: none;
        transform: none;
    }
}