:root {
    /* Fonts */
    --font-heading: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-body: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    /* Colors */
    --color-bg: #070a13;
    --color-bg-soft: #0c1220;
    --color-card: rgba(255, 255, 255, 0.065);
    --color-card-hover: rgba(255, 255, 255, 0.105);
    --color-card-border: rgba(255, 255, 255, 0.13);
    --color-card-border-hover: rgba(0, 212, 255, 0.45);
    --color-primary: #6d5cff;
    --color-primary-2: #00d4ff;
    --color-primary-3: #38d996;
    --color-text: #f8fafc;
    --color-muted: #a5b4c8;
    --color-white: #ffffff;
    --color-success: #38d996;
    --color-danger: #ff6b6b;

    /* Gradients */
    --gradient-primary: linear-gradient(120deg, var(--color-primary), var(--color-primary-2), var(--color-primary-3), var(--color-primary));
    --gradient-hero: radial-gradient(circle at 12% 10%, rgba(109, 92, 255, 0.38), transparent 35%), radial-gradient(circle at 90% 8%, rgba(0, 212, 255, 0.22), transparent 32%), radial-gradient(circle at 50% 100%, rgba(56, 217, 150, 0.08), transparent 35%), var(--color-bg);
    --gradient-section-a: radial-gradient(circle at left, rgba(109, 92, 255, 0.18), transparent 30%), var(--color-bg-soft);
    --gradient-section-b: radial-gradient(circle at right, rgba(0, 212, 255, 0.12), transparent 34%), var(--color-bg);
    --gradient-section-c: radial-gradient(circle at top, rgba(56, 217, 150, 0.10), transparent 32%), var(--color-bg-soft);

    --nav-bg: rgba(8, 11, 18, 0.82);
    --mobile-nav-bg: rgba(8, 11, 18, .97);
    --profile-badge-bg: rgba(8, 11, 18, .78);
    --input-bg: rgba(255, 255, 255, .05);
    --input-bg-focus: rgba(255, 255, 255, .08);
    --input-text: var(--color-white);
    --mobile-link-border: rgba(255, 255, 255, .08);
    --shadow-mobile-menu: 0 22px 60px rgba(0, 0, 0, .35);

    /* Typography */
    --fs-xs: clamp(0.74rem, 0.72rem + 0.14vw, 0.82rem);
    --fs-sm: clamp(0.84rem, 0.80rem + 0.18vw, 0.95rem);
    --fs-base: clamp(0.94rem, 0.90rem + 0.22vw, 1rem);
    --fs-md: clamp(1rem, 0.94rem + 0.34vw, 1.12rem);
    --fs-lg: clamp(1.12rem, 1rem + 0.62vw, 1.35rem);
    --fs-xl: clamp(2.35rem, 8vw, 5.6rem);
    --fs-section-title: clamp(2rem, 5vw, 3.5rem);
    --line-height-body: clamp(1.55, 1.4 + 0.2vw, 1.7);
    --line-height-heading: 1.08;

    /* Layout */
    --container: 1180px;
    --container-padding: clamp(16px, 4vw, 32px);
    --section-padding: clamp(72px, 9vw, 110px);
    --grid-gap: clamp(16px, 2.2vw, 24px);
    --card-padding: clamp(20px, 3vw, 32px);
    --field-padding-y: clamp(12px, 1.5vw, 15px);
    --field-padding-x: clamp(13px, 1.8vw, 16px);

    /* Radius */
    --radius-xs: clamp(8px, 1vw, 10px);
    --radius-sm: clamp(10px, 1.2vw, 12px);
    --radius-md: clamp(14px, 1.6vw, 18px);
    --radius-lg: clamp(22px, 2.5vw, 28px);
    --radius-xl: clamp(28px, 3vw, 36px);
    --radius-pill: 999px;

    /* Buttons */
    --btn-padding-y: clamp(12px, 1.4vw, 14px);
    --btn-padding-x: clamp(18px, 2.2vw, 22px);
    --btn-small-padding-y: clamp(9px, 1vw, 10px);
    --btn-small-padding-x: clamp(14px, 1.8vw, 16px);
    --btn-radius: var(--radius-pill);

    /* Icons */
    --icon-size: clamp(22px, 2.5vw, 26px);
    --icon-badge-size: clamp(46px, 5vw, 54px);
    --dot-size: 10px;
    --dot-glow-color: rgba(0, 212, 255, 0.9);
    --tech-logo-size: clamp(42px, 6vw, 62px);

    /* Nav */
    --nav-height: 74px;
    --nav-padding-y: 12px;
    --nav-progress-height: 2px;
    --nav-progress-color: linear-gradient(90deg, var(--color-primary), var(--color-primary-2), var(--color-primary-3));

    /* Back to top */
    --backtop-size: clamp(44px, 5vw, 52px);
    --backtop-right: clamp(16px, 3vw, 28px);
    --backtop-bottom: clamp(16px, 3vw, 28px);

    /* Effects */
    --shadow-card: 0 24px 80px rgba(0, 0, 0, 0.28);
    --shadow-card-hover: 0 30px 95px rgba(0, 212, 255, 0.14);
    --transition: 260ms ease;
    --transition-slow: 760ms cubic-bezier(.2, .8, .2, 1);
}

body[data-theme="light"] {
    --color-bg: #f8fbff;
    --color-bg-soft: #eef5ff;
    --color-card: rgba(255, 255, 255, 0.82);
    --color-card-hover: rgba(255, 255, 255, 0.98);
    --color-card-border: rgba(15, 23, 42, 0.12);
    --color-card-border-hover: rgba(0, 153, 220, 0.42);
    --color-primary-2: #0099dc;
    --color-primary-3: #16b978;
    --color-text: #0f172a;
    --color-muted: #5f6f86;
    --gradient-hero: radial-gradient(circle at 12% 10%, rgba(109, 92, 255, 0.16), transparent 35%), radial-gradient(circle at 90% 8%, rgba(0, 153, 220, 0.14), transparent 32%), radial-gradient(circle at 50% 100%, rgba(22, 185, 120, 0.10), transparent 35%), var(--color-bg);
    --gradient-section-a: radial-gradient(circle at left, rgba(109, 92, 255, 0.10), transparent 30%), var(--color-bg-soft);
    --gradient-section-b: radial-gradient(circle at right, rgba(0, 153, 220, 0.10), transparent 34%), var(--color-bg);
    --gradient-section-c: radial-gradient(circle at top, rgba(22, 185, 120, 0.10), transparent 32%), var(--color-bg-soft);
    --nav-bg: rgba(255, 255, 255, .82);
    --mobile-nav-bg: rgba(255, 255, 255, .98);
    --profile-badge-bg: rgba(255, 255, 255, .82);
    --input-bg: rgba(255, 255, 255, .72);
    --input-bg-focus: rgba(255, 255, 255, .95);
    --input-text: var(--color-text);
    --mobile-link-border: rgba(15, 23, 42, .09);
    --shadow-card: 0 24px 80px rgba(15, 23, 42, 0.10);
    --shadow-card-hover: 0 30px 95px rgba(0, 153, 220, 0.13);
    --shadow-mobile-menu: 0 22px 60px rgba(15, 23, 42, .14);
}

body[data-theme="light"] .nav-links a:hover,
body[data-theme="light"] .stat-card strong,
body[data-theme="light"] .hero-meta strong,
body[data-theme="light"] .contact-item strong {
    color: var(--color-text);
}

body[data-theme="light"] .btn-secondary {
    color: var(--color-text);
    background: rgba(255, 255, 255, .72);
}

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

html {
    scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4,
h5,
h6,
.logo,
.btn,
label,
.nav-links,
.eyebrow,
.stat-card,
.tag {
    font-family: var(--font-heading);
}

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

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

button,
input,
textarea {
    font: inherit;
}

.container {
    width: min(100% - var(--container-padding), var(--container));
    margin-inline: auto;
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
    overflow: hidden;
}

.section-alt {
    background: var(--gradient-section-b);
}

.section-soft {
    background: var(--gradient-section-c);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, .05);
    color: var(--color-primary-2);
    font-size: var(--fs-xs);
    font-weight: 850;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.icon-img {
    width: var(--icon-size);
    height: var(--icon-size);
    object-fit: contain;
    flex: 0 0 auto;
}

.eyebrow .icon-img {
    width: var(--dot-size);
    height: var(--dot-size);
    border-radius: 50%;
    animation: electricPulse 1.6s ease-in-out infinite;
}

.icon-badge {
    width: var(--icon-badge-size);
    height: var(--icon-badge-size);
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    background-size: 300% 300%;
    display: grid;
    place-items: center;
    margin-bottom: 22px;
    animation: gradientMove 5s ease infinite;
}

.section-head {
    max-width: 760px;
    margin-bottom: clamp(34px, 5vw, 48px);
}

.section-title {
    margin-top: 18px;
    font-size: var(--fs-section-title);
    line-height: var(--line-height-heading);
    letter-spacing: -0.05em;
}

.section-desc {
    margin-top: 18px;
    color: var(--color-muted);
    font-size: var(--fs-md);
    max-width: 690px;
}

.gradient-text {
    background: var(--gradient-primary);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientMove 7s ease infinite;
}

.btn {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: var(--btn-padding-y) var(--btn-padding-x);
    border-radius: var(--btn-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
    font-weight: 850;
    font-size: var(--fs-sm);
}

.btn:hover {
    transform: translateY(-3px) scale(1.015);
    box-shadow: 0 18px 54px rgba(0, 212, 255, 0.20);
}

.btn-primary {
    background: var(--gradient-primary);
    background-size: 350% 350%;
    color: var(--color-white);
    animation: gradientMove 5s ease infinite;
}

.btn-secondary {
    color: var(--color-text);
    background: rgba(255, 255, 255, .06);
    border-color: var(--color-card-border);
}

.btn-small {
    padding: var(--btn-small-padding-y) var(--btn-small-padding-x);
    font-size: var(--fs-xs);
}

.glass-card {
    background: var(--color-card);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(18px);
}

.reveal {
    opacity: 0;
    transition: opacity var(--transition-slow), transform var(--transition-slow), filter var(--transition-slow);
}

.reveal-up {
    transform: translateY(42px);
}

.reveal-left {
    transform: translateX(-42px);
}

.reveal-right {
    transform: translateX(42px);
}

.reveal-zoom {
    transform: scale(.94);
    filter: blur(6px);
}

.reveal-flip {
    transform: perspective(900px) rotateX(12deg) translateY(24px);
    transform-origin: top;
}

.reveal.show {
    opacity: 1;
    transform: none;
    filter: blur(0);
}

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

@keyframes marquee {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

@keyframes electricPulse {

    0%,
    100% {
        opacity: .45;
        filter: brightness(.8);
        box-shadow: 0 0 6px rgba(0, 212, 255, .35), 0 0 14px rgba(0, 212, 255, .2);
        transform: scale(.92);
    }

    50% {
        opacity: 1;
        filter: brightness(1.8);
        box-shadow: 0 0 10px var(--dot-glow-color), 0 0 28px rgba(0, 212, 255, .65), 0 0 48px rgba(109, 92, 255, .45);
        transform: scale(1.15);
    }
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    pointer-events: none;
    transform: translateY(0);
    transition: transform 360ms ease;
}

.site-header.nav-hidden {
    transform: translateY(-110%);
}

.nav-wrap {
    pointer-events: auto;
    width: 100%;
    border-bottom: 1px solid var(--color-card-border);
    background: var(--nav-bg);
    backdrop-filter: blur(18px);
    position: relative;
    overflow: visible;
}

.nav-wrap::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: var(--nav-progress-height);
    width: var(--scroll-progress, 0%);
    background: var(--nav-progress-color);
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, .75));
    transition: width 80ms linear;
}

.nav {
    min-height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-block: var(--nav-padding-y);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    letter-spacing: -.04em;
}

.logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--gradient-primary);
    background-size: 300% 300%;
    display: grid;
    place-items: center;
    font-weight: 900;
    animation: gradientMove 5s ease infinite;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(14px, 2vw, 26px);
    color: var(--color-muted);
    font-size: var(--fs-sm);
}

.nav-links a {
    position: relative;
    padding: 8px 2px;
    transition: color var(--transition), transform var(--transition);
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    border-radius: var(--radius-pill);
    background: var(--gradient-primary);
    background-size: 300% 300%;
    transform: translateX(-50%);
    transition: width var(--transition);
    animation: gradientMove 5s ease infinite;
}

.nav-links a:hover {
    color: var(--color-white);
    transform: translateY(-2px);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-toggle,
.menu-btn {
    background: rgba(255, 255, 255, .06);
    color: var(--color-text);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-pill);
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.theme-toggle:hover,
.menu-btn:hover {
    transform: translateY(-2px);
    background: var(--color-card-hover);
    border-color: var(--color-card-border-hover);
}

.theme-toggle {
    width: 44px;
    padding: 0;
    position: relative;
    overflow: hidden;
}

.theme-toggle .icon {
    position: absolute;
    transition: opacity 220ms ease, transform 220ms ease;
    font-size: 18px;
    line-height: 1;
}

.theme-toggle .sun {
    opacity: 0;
    transform: translateY(12px) rotate(-45deg);
}

.theme-toggle .moon {
    opacity: 1;
    transform: translateY(0) rotate(0);
}

body[data-theme="light"] .theme-toggle .sun {
    opacity: 1;
    transform: translateY(0) rotate(0);
}

body[data-theme="light"] .theme-toggle .moon {
    opacity: 0;
    transform: translateY(-12px) rotate(45deg);
}

.menu-btn {
    display: none;
    padding: 8px 12px;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: grid;
    align-items: center;
    padding: calc(var(--nav-height) + 86px) 0 90px;
    background: var(--gradient-hero);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
    gap: clamp(34px, 5vw, 56px);
}

.hero h1 {
    margin-top: 22px;
    font-size: var(--fs-xl);
    line-height: .98;
    letter-spacing: -.075em;
}

.hero p {
    margin-top: 24px;
    color: var(--color-muted);
    font-size: var(--fs-md);
    max-width: 650px;
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.hero-meta {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
    margin-top: 34px;
    color: var(--color-muted);
    font-size: var(--fs-sm);
}

.hero-meta strong {
    color: var(--color-white);
}

.profile-card {
    position: relative;
    padding: clamp(18px, 2.4vw, 24px);
    transform: rotate(2deg);
}

.profile-card-inner {
    min-height: clamp(360px, 44vw, 470px);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255, 255, 255, .16), rgba(255, 255, 255, .04)), url("https://images.unsplash.com/photo-1519389950473-47ba0277781c?auto=format&fit=crop&w=900&q=80") center/cover;
    position: relative;
    overflow: hidden;
}

.profile-badge {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 18px;
    padding: 18px;
    border-radius: var(--radius-md);
    background: var(--profile-badge-bg);
    backdrop-filter: blur(18px);
    border: 1px solid var(--color-card-border);
}

.profile-badge p {
    margin-top: 6px;
    color: var(--color-muted);
    font-size: var(--fs-sm);
}

/* Trusted */
.trusted {
    padding: clamp(48px, 6vw, 64px) 0;
    background: var(--gradient-section-a);
    border-block: 1px solid var(--color-card-border);
    overflow: hidden;
}

.brand-marquee {
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
    margin-top: 22px;
}

.brand-track {
    display: flex;
    gap: 14px;
    width: max-content;
    animation: marquee 22s linear infinite;
}

.brand-marquee:hover .brand-track {
    animation-play-state: paused;
}

.trusted-logo,
.stat-card {
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .055);
    text-align: center;
    color: var(--color-muted);
    font-weight: 850;
    transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.trusted-logo {
    min-width: 150px;
    padding: 20px 28px;
}

.trusted-logo:hover {
    transform: translateY(-5px) rotate(-1deg);
    background: var(--color-card-hover);
    border-color: var(--color-card-border-hover);
}

.stats-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--grid-gap);
    margin-top: 40px;
}

.stat-card {
    min-width: 0;
    width: 100%;
    padding: clamp(22px, 3vw, 30px) 16px;
}

.stat-card:hover {
    transform: translateY(-5px) scale(1.015);
    background: rgba(109, 92, 255, .10);
    border-color: rgba(109, 92, 255, .5);
}

.stat-card strong {
    display: block;
    font-size: clamp(1.8rem, 3vw, 2.25rem);
    color: var(--color-white);
    line-height: 1;
    margin-bottom: 8px;
}

/* Layouts */
.about-grid,
.contact-grid {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: var(--grid-gap);
    align-items: stretch;
}

.about-image {
    min-height: clamp(360px, 45vw, 500px);
    background: linear-gradient(180deg, rgba(109, 92, 255, .1), rgba(0, 212, 255, .08)), url("https://images.unsplash.com/photo-1497366811353-6870744d04b2?auto=format&fit=crop&w=900&q=80") center/cover;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
}

.about-content,
.contact-info,
.contact-form {
    padding: var(--card-padding);
    height: 100%;
}

.check-list {
    display: grid;
    gap: 14px;
    margin-top: 28px;
}

.check-list li {
    list-style: none;
    display: flex;
    gap: 12px;
    color: var(--color-muted);
}

.check-list li::before {
    content: "✓";
    display: grid;
    place-items: center;
    flex: 0 0 24px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(56, 217, 150, .16);
    color: var(--color-success);
    font-weight: 900;
}

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

.service-card,
.project-card,
.process-card,
.testimonial-card,
.tool-card,
.faq-item {
    position: relative;
    overflow: hidden;
    padding: var(--card-padding);
    transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.service-card::before,
.project-card::before,
.process-card::before,
.testimonial-card::before,
.tool-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), rgba(0, 212, 255, .16), transparent 34%);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-8px) rotate(.6deg);
    border-color: var(--color-card-border-hover);
    background: var(--color-card-hover);
    box-shadow: var(--shadow-card-hover);
}

.project-card:hover {
    transform: translateY(-8px) scale(1.012);
    border-color: rgba(56, 217, 150, .42);
    background: rgba(56, 217, 150, .065);
}

.process-card:hover {
    transform: translateY(-8px);
    border-color: rgba(109, 92, 255, .5);
    background: rgba(109, 92, 255, .08);
}

.testimonial-card:hover {
    transform: translateY(-8px) rotate(-.5deg);
    border-color: rgba(0, 212, 255, .42);
}

.rating {
    display: flex;
    gap: 5px;
    margin-bottom: 16px;
    color: #ffd166;
    font-size: var(--fs-sm);
    letter-spacing: .05em;
}

.client-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 22px;
}

.client-img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--color-card-border);
}

.testimonial-card span {
    color: var(--color-muted);
    font-size: var(--fs-sm);
}

.tool-card:hover {
    transform: translateY(-8px) scale(1.03);
    border-color: rgba(56, 217, 150, .42);
    background: rgba(255, 255, 255, .09);
}

.service-card:hover::before,
.project-card:hover::before,
.process-card:hover::before,
.testimonial-card:hover::before,
.tool-card:hover::before {
    opacity: 1;
}

.service-card h3,
.process-card h3,
.testimonial-card h3,
.project-card h3,
.faq-item h3 {
    font-size: var(--fs-lg);
    line-height: 1.2;
}

.service-card p,
.process-card p,
.testimonial-card p,
.project-card p,
.tool-card p,
.faq-item p {
    color: var(--color-muted);
    margin-top: 12px;
}

.project-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
}

.filter-btn {
    border: 1px solid var(--color-card-border);
    background: rgba(255, 255, 255, .05);
    color: var(--color-muted);
    border-radius: var(--radius-pill);
    padding: 10px 16px;
    cursor: pointer;
    transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    font-weight: 800;
    font-size: var(--fs-sm);
}

.filter-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 34px rgba(0, 212, 255, .14);
}

.filter-btn.active,
.filter-btn:hover {
    color: var(--color-white);
    background: var(--gradient-primary);
    background-size: 300% 300%;
    border-color: transparent;
    animation: gradientMove 5s ease infinite;
}

.project-thumb {
    height: clamp(180px, 20vw, 220px);
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(109, 92, 255, .65), rgba(0, 212, 255, .35));
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}

.project-thumb::after {
    content: "";
    position: absolute;
    inset: 18px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, .28);
    background: linear-gradient(180deg, rgba(255, 255, 255, .18), rgba(255, 255, 255, .03));
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0 20px;
}

.tag {
    padding: 6px 10px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, .07);
    border: 1px solid var(--color-card-border);
    color: var(--color-muted);
    font-size: var(--fs-xs);
    font-weight: 700;
}

.project-card.hide {
    display: none;
}

.process-card .step {
    font-size: clamp(2.3rem, 4vw, 3rem);
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, .28);
    margin-bottom: 18px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--grid-gap);
}

.tool-card {
    text-align: center;
    border-radius: var(--radius-md);
    padding: clamp(20px, 3vw, 28px) 14px;
}

.tech-logo {
    width: var(--tech-logo-size);
    height: var(--tech-logo-size);
    object-fit: contain;
    margin: 0 auto 12px;
    border-radius: var(--radius-sm);
}

/* FAQ */
.faq-accordion {
    max-width: 900px;
    display: grid;
    gap: 0;
    border-top: 1px solid var(--color-card-border);
}

.faq-panel {
    border-bottom: 1px solid var(--color-card-border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 0;
    background: transparent;
    border: 0;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    font-family: var(--font-heading);
    font-size: var(--fs-lg);
    font-weight: 850;
    transition: color var(--transition);
}

.faq-question:hover {
    color: var(--color-primary-2);
}

.faq-question strong {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: var(--color-primary-2);
    transition: transform 320ms cubic-bezier(.2, .8, .2, 1), background 320ms ease;
}

.faq-panel.active .faq-question strong {
    transform: rotate(45deg);
    background: rgba(0, 212, 255, .08);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: max-height 480ms cubic-bezier(.2, .8, .2, 1), opacity 320ms ease, transform 420ms cubic-bezier(.2, .8, .2, 1);
    will-change: max-height, opacity, transform;
}

.faq-answer p {
    color: var(--color-muted);
    padding: 0 48px 22px 0;
}

.faq-panel.active .faq-answer {
    opacity: 1;
    transform: translateY(0);
}

/* Contact */
.contact {
    background: radial-gradient(circle at 25% 15%, rgba(109, 92, 255, .14), transparent 32%), radial-gradient(circle at 90% 80%, rgba(0, 212, 255, .12), transparent 30%), var(--color-bg);
}

.contact-item {
    display: flex;
    gap: 14px;
    padding: 18px 0;
    border-bottom: 1px solid var(--color-card-border);
    color: var(--color-muted);
}

.contact-item strong {
    color: var(--color-white);
    display: block;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-group.full {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--color-muted);
    font-size: var(--fs-sm);
    font-weight: 850;
}

input,
textarea {
    width: 100%;
    border: 1px solid var(--color-card-border);
    background: var(--input-bg);
    color: var(--input-text);
    border-radius: var(--radius-sm);
    padding: var(--field-padding-y) var(--field-padding-x);
    outline: none;
    transition: border-color var(--transition), background var(--transition);
}

input:focus,
textarea:focus {
    border-color: rgba(0, 212, 255, .7);
    background: var(--input-bg-focus);
}

textarea {
    min-height: 140px;
    resize: vertical;
}

.form-note,
.form-success {
    margin-top: 12px;
    color: var(--color-muted);
    font-size: var(--fs-xs);
}

.form-success {
    display: none;
    color: var(--color-success);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    background: rgba(56, 217, 150, .1);
    border: 1px solid rgba(56, 217, 150, .25);
    font-weight: 800;
}

.form-success.show {
    display: block;
}

.cta-card {
    padding: clamp(34px, 7vw, 76px);
    text-align: center;
    background: radial-gradient(circle at top, rgba(0, 212, 255, .18), transparent 35%), linear-gradient(135deg, rgba(109, 92, 255, .24), rgba(255, 255, 255, .05));
}

.cta-card h2 {
    font-size: var(--fs-section-title);
    line-height: var(--line-height-heading);
    letter-spacing: -.05em;
}

.cta-card p {
    color: var(--color-muted);
    max-width: 660px;
    margin: 18px auto 30px;
    font-size: var(--fs-md);
}


/* Skills Showcase */
.skills-showcase {
    background: radial-gradient(circle at 8% 20%, rgba(18, 55, 185, .22), transparent 34%), radial-gradient(circle at 82% 18%, rgba(109, 92, 255, .10), transparent 30%), var(--color-bg);
}

.skills-board {
    padding: clamp(24px, 4vw, 36px);
    border: 1px solid rgba(151, 162, 255, .35);
    background: linear-gradient(135deg, rgba(18, 48, 170, .22), rgba(255, 255, 255, .04));
    overflow: hidden;
}

body[data-theme="light"] .skills-board {
    background: linear-gradient(135deg, rgba(109, 92, 255, .12), rgba(255, 255, 255, .78));
    border-color: rgba(109, 92, 255, .18);
}

.skills-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(28px, 5vw, 84px);
    align-items: start;
}

.skill-bars {
    display: grid;
    gap: 24px;
}

.skill-row {
    --value: 70%;
}

.skill-row-top {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 12px;
    font-weight: 900;
    font-size: var(--fs-lg);
    color: var(--color-text);
}

.skill-track {
    position: relative;
    height: 4px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, .86);
    overflow: visible;
}

body[data-theme="light"] .skill-track {
    background: rgba(15, 23, 42, .18);
}

.skill-fill {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #9da8ff, #b5c0ff);
    transition: width 1500ms cubic-bezier(.16, 1, .3, 1);
}

.skill-thumb {
    position: absolute;
    top: 50%;
    left: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 4px solid #fff;
    background: #15215e;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 0 2px rgba(151, 162, 255, .55);
    transition: left 1500ms cubic-bezier(.16, 1, .3, 1);
}

.skills-animated .skill-fill {
    width: var(--value);
}

.skills-animated .skill-thumb {
    left: var(--value);
}

body[data-theme="light"] .skill-thumb {
    background: #6d5cff;
    border-color: #fff;
}

@media (max-width: 991px) {
    .skills-content-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}


.footer {
    padding: 34px 0;
    border-top: 1px solid var(--color-card-border);
    background: var(--color-bg-soft);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    color: var(--color-muted);
    font-size: var(--fs-sm);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 18px;
}

.back-to-top {
    position: fixed;
    right: var(--backtop-right);
    bottom: var(--backtop-bottom);
    z-index: 90;
    width: var(--backtop-size);
    height: var(--backtop-size);
    border: 0;
    border-radius: 50%;
    color: var(--color-white);
    background: var(--gradient-primary);
    background-size: 300% 300%;
    display: inline-grid;
    place-items: center;
    cursor: pointer;
    animation: gradientMove 5s ease infinite;
    box-shadow: 0 14px 38px rgba(0, 212, 255, .18);
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
    opacity: 0;
    visibility: hidden;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

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

@media (max-width: 991px) {
    :root {
        --nav-height: 68px;
        --section-padding: clamp(64px, 8vw, 84px);
        --container-padding: 24px;
        --card-padding: 24px;
        --radius-lg: 24px;
    }

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

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

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

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

    .profile-card {
        transform: none;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px var(--container-padding) 18px;
        border-top: 1px solid var(--color-card-border);
        background: var(--mobile-nav-bg);
        backdrop-filter: blur(18px);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-12px);
        pointer-events: none;
        transition: opacity 280ms ease, transform 280ms ease, visibility 280ms ease;
        box-shadow: var(--shadow-mobile-menu);
    }

    .nav-links.show {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }

    .nav-links a {
        padding: 13px 0;
        border-bottom: 1px solid var(--mobile-link-border);
    }

    .nav-links a:last-child {
        border-bottom: 0;
    }

    .menu-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
    }

    .nav-actions .btn {
        display: none;
    }
}

@media (max-width: 760px) {
    :root {
        --container-padding: 20px;
        --card-padding: 20px;
        --grid-gap: 16px;
        --radius-lg: 20px;
        --radius-md: 16px;
        --nav-height: 64px;
    }

    .hero {
        padding-top: calc(var(--nav-height) + 64px);
    }

    .card-grid,
    .tools-grid,
    .form-grid,
    .faq-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}