/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
    --bg: #0b0d10;
    --bg-alt: #0d1014;
    --surface: #101318;
    --surface-2: #12151a;
    --text: #e8ebee;
    --text-muted: #aab3bd;
    --text-soft: #9aa4af;
    --text-dim: #8b95a1;
    --text-faint: #626c78;
    --accent: #10d3b0;
    --accent-bright: #5ff0d4;
    --accent-deep: #0b8d76;
    --accent-hover: #3fe2c4;
    --on-accent: #06110e;
    --hairline: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.07);
    --border-strong: rgba(255, 255, 255, 0.1);
    --font-sans: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --glow: 0 8px 30px rgba(16, 211, 176, 0.25);
}

/* ==========================================================================
   Base
   ========================================================================== */
html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
}

* {
    box-sizing: border-box;
}

::selection {
    background: rgba(16, 211, 176, 0.3);
}

a {
    -webkit-tap-highlight-color: transparent;
}

[x-cloak] {
    display: none !important;
}

@keyframes blink {

    0%,
    49% {
        opacity: 1;
    }

    50%,
    100% {
        opacity: 0;
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

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

/* ==========================================================================
   Layout primitives
   ========================================================================== */
.wrap {
    max-width: 1140px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
}

.section {
    border-top: 1px solid var(--hairline);
}

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

.section-inner {
    padding-top: 96px;
    padding-bottom: 96px;
}

.section-inner--contact {
    padding-bottom: 80px;
}

/* ==========================================================================
   Typography helpers
   ========================================================================== */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    font-size: 38px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 18px;
}

.section-title--flush {
    margin-bottom: 0;
}

.section-title--wide {
    margin-bottom: 44px;
}

.section-title--sm-gap {
    margin-bottom: 16px;
}

.mono-accent {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 13px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-fill {
    background: var(--accent);
    color: var(--on-accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 13px 26px;
    border-radius: 10px;
    display: inline-block;
    transition: background .15s;
}

.btn-fill:hover {
    background: var(--accent-hover);
}

.btn-fill--sm {
    font-size: 14px;
    padding: 10px 20px;
}

.btn-fill--lg {
    font-size: 16px;
    padding: 14px 32px;
}

.btn-fill--glow {
    box-shadow: var(--glow);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--accent);
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 12px 24px;
    border-radius: 10px;
    background: transparent;
    transition: background .15s;
}

.btn-outline:hover {
    background: rgba(16, 211, 176, 0.1);
}

.btn-outline .mono {
    font-family: var(--font-mono);
}

.icon-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    color: var(--text-muted);
    text-decoration: none;
    transition: border-color .15s, color .15s;
}

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

/* ==========================================================================
   Cards & tags
   ========================================================================== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    transition: border-color .2s, transform .2s;
}

.card:hover {
    border-color: rgba(16, 211, 176, 0.45);
    transform: translateY(-4px);
}

.tag {
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: #c4cdd6;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    padding: 6px 14px;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-bottom: 30px;
}

/* ==========================================================================
   Signal-bars logo mark
   ========================================================================== */
.logo-bars {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.logo-bar {
    width: 26px;
    height: 6px;
    border-radius: 3px;
}

.logo-bar:nth-child(1) {
    background: var(--accent-bright);
    transform: translateX(4px);
}

.logo-bar:nth-child(2) {
    background: var(--accent);
}

.logo-bar:nth-child(3) {
    background: var(--accent-deep);
    transform: translateX(-4px);
}

/* ==========================================================================
   Header / navigation
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(11, 13, 16, 0.82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--hairline);
}

.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
}

.logo-text {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-dim);
    letter-spacing: 0.04em;
}

.logo-text__accent {
    color: var(--accent);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14.5px;
    font-weight: 500;
    transition: color .15s;
}

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

/* ==========================================================================
   Hero
   ========================================================================== */
.hero-section {
    position: relative;
}

.hero-glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 70% 30%, rgba(16, 211, 176, 0.07), transparent 70%);
    pointer-events: none;
}

.hero-grid {
    position: relative;
    padding-top: 96px;
    padding-bottom: 110px;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 64px;
    align-items: center;
}

.hero-intro {
    animation: fadeUp 0.7s ease both;
}

.hero-intro .eyebrow {
    margin-bottom: 18px;
}

.hero-name {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin: 0 0 16px;
}

.hero-tagline {
    font-size: 24px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 28px;
    min-height: 34px;
}

.hero-tagline__accent {
    color: var(--accent);
}

.hero-cursor {
    display: inline-block;
    width: 2px;
    height: 24px;
    background: var(--accent);
    vertical-align: -3px;
    margin-left: 2px;
    animation: blink 1s step-end infinite;
}

.hero-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 28px;
}

.hero-detail {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 15px;
}

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

.hero-media {
    display: flex;
    justify-content: center;
    animation: fadeUp 0.7s ease 0.15s both;
}

.profile-frame {
    position: relative;
    width: 340px;
    height: 340px;
    max-width: 100%;
}

.profile-ring {
    position: absolute;
    inset: -14px;
    border-radius: 28px;
    border: 1px solid rgba(16, 211, 176, 0.35);
    transform: rotate(-3deg);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
    display: block;
    filter: saturate(0.92);
}

.profile-badge {
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--surface-2);
    border: 1px solid var(--border-strong);
    border-radius: 10px;
    padding: 8px 16px;
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--accent);
    white-space: nowrap;
}

/* ==========================================================================
   About
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: center;
}

.about-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 64px 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.about-card__bars {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.about-card__bar {
    width: 84px;
    height: 17px;
    border-radius: 9px;
}

.about-card__bar:nth-child(1) {
    background: var(--accent-bright);
    transform: translateX(14px);
}

.about-card__bar:nth-child(2) {
    background: var(--accent);
}

.about-card__bar:nth-child(3) {
    background: var(--accent-deep);
    transform: translateX(-14px);
}

.about-card__identity {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.about-card__name {
    font-family: var(--font-sans);
    font-size: 30px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.about-card__role {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 0.42em;
    text-transform: uppercase;
    white-space: nowrap;
    margin-right: -0.42em;
}

.about-text {
    color: var(--text-muted);
    font-size: 17px;
    line-height: 1.7;
    margin: 0 0 26px;
}

/* ==========================================================================
   Services
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.service-card {
    padding: 34px 30px;
}

.service-card__tag {
    font-family: var(--font-mono);
    font-size: 13px;
    margin-bottom: 20px;
}

.service-card__title {
    font-size: 21px;
    font-weight: 600;
    margin: 0 0 14px;
}

.service-card__text {
    color: var(--text-soft);
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
}

/* ==========================================================================
   Portfolio
   ========================================================================== */
.portfolio-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 40px;
}

.filter-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: transparent;
    color: var(--text-muted);
    transition: all .15s;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.project-card {
    cursor: pointer;
    overflow: hidden;
}

.project-card__thumb {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #171b21;
}

.project-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-card__body {
    padding: 18px 20px 20px;
}

.project-card__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.project-card__title {
    font-size: 17px;
    font-weight: 600;
    margin: 0;
}

.project-card__badge {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--accent);
    border: 1px solid rgba(16, 211, 176, 0.3);
    border-radius: 999px;
    padding: 3px 9px;
    white-space: nowrap;
}

.project-card__subtitle {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-dim);
    margin-top: 7px;
}

/* ==========================================================================
   Project modal
   ========================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(5, 7, 9, 0.8);
    backdrop-filter: blur(6px);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-inner {
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: 20px;
    max-width: 980px;
    width: 100%;
    max-height: 85vh;
    overflow: auto;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
}

.modal-body {
    padding: 40px;
}

.modal-body__category {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 10px;
}

.modal-body__title {
    font-size: 30px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 16px;
}

.modal-body__text {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
    margin: 0 0 22px;
}

.modal-tech-row {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 26px;
}

.modal-tech {
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: #c4cdd6;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    padding: 4px 11px;
}

.modal-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.modal-aside {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--bg-alt);
    border-left: 1px solid var(--hairline);
}

.modal-close {
    align-self: flex-end;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-muted);
    border-radius: 8px;
    width: 34px;
    height: 34px;
    cursor: pointer;
    font-size: 15px;
}

.modal-image {
    width: 100%;
    border-radius: 12px;
    display: block;
}

.modal-caption {
    font-family: var(--font-mono);
    color: var(--text-dim);
    font-size: 12px;
    line-height: 1.6;
    margin: 0;
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-head {
    text-align: center;
    margin-bottom: 52px;
}

.contact-lead {
    color: var(--text-muted);
    font-size: 17px;
    margin: 0 0 28px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.contact-card {
    text-decoration: none;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    text-align: center;
    transition: border-color .2s;
    display: block;
}

.contact-card:hover {
    border-color: rgba(16, 211, 176, 0.45);
}

.contact-card__label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 10px;
}

.contact-card__value {
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
}

.site-footer {
    margin-top: 64px;
    padding-top: 24px;
    border-top: 1px solid var(--hairline);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-note {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-faint);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 860px) {

    .hero-grid,
    .about-grid,
    .services-grid,
    .portfolio-grid,
    .contact-grid,
    .modal-inner {
        grid-template-columns: 1fr;
    }

    .hero-name {
        font-size: 44px;
    }

    .main-nav {
        display: none;
    }
}