/* ── Design tokens ── */
:root {
    --ink: #0f172a;
    --ink-soft: #334155;
    --muted: #64748b;
    --line: #e2e8f0;
    --line-soft: #f1f5f9;
    --paper: #f8fafc;
    --panel: #ffffff;
    --navy: #0a0f1a;
    --navy-mid: #111827;
    --teal: #0d9488;
    --teal-light: #14b8a6;
    --teal-glow: rgba(20, 184, 166, .35);
    --teal-subtle: #ecfdf5;
    --amber: #d97706;
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, .08), 0 2px 6px rgba(15, 23, 42, .04);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12), 0 8px 20px rgba(15, 23, 42, .06);
    --shadow-glow: 0 8px 32px var(--teal-glow);
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 999px;
    --ease: cubic-bezier(.4, 0, .2, 1);
    --transition: .25s var(--ease);
}

/* ── Base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: #0f766e;
}

::selection {
    background: rgba(20, 184, 166, .2);
    color: var(--ink);
}

/* ── Header ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 15, 26, .82);
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.site-header.is-scrolled {
    background: rgba(10, 15, 26, .96);
    box-shadow: 0 4px 24px rgba(0, 0, 0, .25);
}

.navbar {
    padding-block: 1rem;
    transition: padding var(--transition);
}

.site-header.is-scrolled .navbar {
    padding-block: .65rem;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -.01em;
    color: #fff !important;
}

.brand-mark {
    display: inline-grid;
    width: 2.25rem;
    height: 2.25rem;
    place-items: center;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--teal-light), #0891b2);
    color: #fff;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .02em;
    box-shadow: 0 4px 12px rgba(20, 184, 166, .3);
}

.navbar .nav-link {
    position: relative;
    color: rgba(255, 255, 255, .65);
    font-weight: 500;
    font-size: .925rem;
    padding: .4rem .85rem;
    transition: color var(--transition);
}

.navbar .nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: .85rem;
    right: .85rem;
    height: 2px;
    border-radius: 2px;
    background: var(--teal-light);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.navbar .nav-link:hover,
.navbar .nav-link:focus,
.navbar .nav-link.active {
    color: #fff;
}

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

.navbar .nav-link.active {
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: .5rem;
    margin-left: 1.25rem;
}

/* ── Buttons ── */
.btn {
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: .9rem;
    letter-spacing: -.01em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .55rem 1.25rem;
    border: none;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
}

.btn:active {
    transform: scale(.97);
}

.btn-sm {
    padding: .4rem 1rem;
    font-size: .85rem;
}

.btn-lg {
    padding: .75rem 1.65rem;
    font-size: .95rem;
}

.btn-primary {
    --bs-btn-bg: var(--teal);
    --bs-btn-border-color: var(--teal);
    --bs-btn-hover-bg: #0f766e;
    --bs-btn-hover-border-color: #0f766e;
    --bs-btn-active-bg: #0d6b64;
    --bs-btn-active-border-color: #0d6b64;
    background: linear-gradient(135deg, var(--teal-light), var(--teal));
    border: none;
    color: #fff;
    box-shadow: 0 2px 8px rgba(13, 148, 136, .25);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, #2dd4bf, var(--teal));
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
    color: #fff;
}

.btn-outline-light {
    --bs-btn-color: rgba(255, 255, 255, .9);
    --bs-btn-border-color: rgba(255, 255, 255, .25);
    --bs-btn-hover-bg: rgba(255, 255, 255, .1);
    --bs-btn-hover-border-color: rgba(255, 255, 255, .4);
    --bs-btn-hover-color: #fff;
    background: rgba(255, 255, 255, .04);
    backdrop-filter: blur(8px);
}

.btn-outline-light:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, .1);
}

.btn-outline-dark {
    --bs-btn-color: var(--ink);
    --bs-btn-border-color: var(--line);
    --bs-btn-hover-bg: var(--ink);
    --bs-btn-hover-border-color: var(--ink);
    --bs-btn-hover-color: #fff;
    background: var(--panel);
    box-shadow: var(--shadow-sm);
}

.btn-outline-dark:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ── Hero ── */
.hero {
    position: relative;
    min-height: calc(92vh - 72px);
    display: flex;
    align-items: center;
    padding: 5rem 0;
    color: #fff;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 50%, rgba(20, 184, 166, .12), transparent),
        radial-gradient(ellipse 50% 80% at 80% 20%, rgba(8, 145, 178, .08), transparent),
        linear-gradient(105deg, rgba(10, 15, 26, .97) 0%, rgba(10, 15, 26, .88) 40%, rgba(10, 15, 26, .55) 65%, rgba(10, 15, 26, .25) 100%),
        url("/images/developer-workspace.png") center / cover no-repeat;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    width: 100%;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .35rem .85rem;
    border-radius: var(--radius-full);
    background: rgba(20, 184, 166, .12);
    border: 1px solid rgba(20, 184, 166, .25);
    color: #5eead4;
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.eyebrow.text-dark {
    background: var(--teal-subtle);
    border-color: rgba(13, 148, 136, .2);
    color: var(--teal);
}

.hero h1,
.page-hero h1 {
    max-width: 720px;
    margin: 1.25rem 0 1rem;
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -.025em;
    overflow-wrap: break-word;
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
}

.page-hero h1,
.section-heading h2 {
    font-size: clamp(1.85rem, 3.5vw, 2.5rem);
}

.text-gradient {
    background: linear-gradient(135deg, #5eead4, #38bdf8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    max-width: 580px;
    color: rgba(255, 255, 255, .72);
    font-size: 1.1rem;
    font-weight: 400;
    line-height: 1.75;
}

.hero-actions,
.section-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
    margin-top: 2rem;
}

.proof-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .85rem;
    margin-top: 3rem;
    max-width: 780px;
}

.proof-item {
    padding: 1.15rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .05);
    backdrop-filter: blur(12px);
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.proof-item:hover {
    transform: translateY(-2px);
    border-color: rgba(20, 184, 166, .3);
    background: rgba(255, 255, 255, .08);
}

.proof-item strong {
    display: block;
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: .2rem;
}

.proof-item span {
    color: rgba(255, 255, 255, .55);
    font-size: .82rem;
    font-weight: 400;
}

/* ── Sections ── */
.section {
    padding: 5.5rem 0;
}

.section-alt {
    background: var(--panel);
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
}

.section-heading {
    max-width: 680px;
    margin-bottom: 2.5rem;
}

.section-heading h2,
.page-hero h1 {
    font-weight: 700;
    letter-spacing: -.025em;
}

.section-heading p,
.page-hero p,
.lead-muted {
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.75;
}

.page-hero {
    position: relative;
    padding: 5rem 0 2.5rem;
    background: linear-gradient(180deg, #fff 0%, var(--paper) 100%);
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}

.page-hero::before {
    content: "";
    position: absolute;
    top: -40%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(20, 184, 166, .06), transparent 70%);
    pointer-events: none;
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero .lead {
    max-width: 640px;
    color: var(--muted);
    font-size: 1.1rem;
    font-weight: 400;
}

/* ── Cards ── */
.project-card,
.service-card,
.info-card,
.timeline-item,
.contact-panel {
    height: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--panel);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.project-card:hover,
.service-card:hover,
.info-card:hover,
.experience-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(13, 148, 136, .2);
}

.project-card .card-body,
.service-card .card-body,
.info-card,
.timeline-item,
.contact-panel {
    padding: 1.65rem;
}

.project-card .card-title,
.service-card .card-title,
.info-card h2,
.info-card h3 {
    font-weight: 600;
    letter-spacing: -.015em;
    color: var(--ink);
}

.project-type {
    flex: 0 0 auto;
    border-radius: var(--radius-full);
    padding: .25rem .7rem;
    background: var(--teal-subtle);
    color: #0f766e;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .02em;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.tag-list span {
    border: 1px solid var(--line);
    border-radius: var(--radius-full);
    padding: .25rem .65rem;
    color: var(--ink-soft);
    background: var(--paper);
    font-size: .78rem;
    font-weight: 500;
    transition: border-color var(--transition), background var(--transition);
}

.tag-list span:hover {
    border-color: rgba(13, 148, 136, .3);
    background: var(--teal-subtle);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    color: var(--teal);
    font-weight: 600;
    font-size: .9rem;
    transition: gap var(--transition), color var(--transition);
}

.card-link:hover {
    gap: .65rem;
    color: #0f766e;
}

.service-icon {
    display: inline-grid;
    width: 3rem;
    height: 3rem;
    place-items: center;
    border-radius: var(--radius-sm);
    margin-bottom: 1.15rem;
    color: var(--teal);
    background: linear-gradient(135deg, var(--teal-subtle), #f0fdfa);
    font-size: 1.25rem;
    transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(20, 184, 166, .15);
}

.skill-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
}

.skill-cloud span {
    display: inline-flex;
    align-items: center;
    min-height: 2.25rem;
    border-radius: var(--radius-full);
    padding: .4rem .85rem;
    background: var(--paper);
    border: 1px solid var(--line);
    font-weight: 500;
    font-size: .875rem;
    color: var(--ink-soft);
    transition: border-color var(--transition), background var(--transition), color var(--transition);
}

.skill-cloud span:hover {
    border-color: rgba(13, 148, 136, .35);
    background: var(--teal-subtle);
    color: var(--teal);
}

/* ── Metric band ── */
.metric-band {
    position: relative;
    background: var(--navy);
    color: #fff;
    overflow: hidden;
}

.metric-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 80% at 0% 50%, rgba(20, 184, 166, .1), transparent),
        radial-gradient(ellipse 40% 60% at 100% 80%, rgba(8, 145, 178, .08), transparent);
    pointer-events: none;
}

.metric-band .container {
    position: relative;
    z-index: 1;
}

.metric-band h2 {
    font-weight: 600;
    letter-spacing: -.02em;
    line-height: 1.25;
}

.metric-band .metric {
    border-left: 1px solid rgba(255, 255, 255, .12);
    padding-left: 1.5rem;
}

.metric strong {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, #5eead4, #38bdf8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: .35rem;
}

.metric span {
    color: rgba(255, 255, 255, .6);
    font-size: .9rem;
    font-weight: 400;
}

/* ── Experience ── */
.timeline {
    display: grid;
    gap: 1rem;
}

.timeline-item,
.experience-card {
    position: relative;
}

.timeline-item small {
    color: var(--amber);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    font-size: .75rem;
}

.experience-stack {
    display: grid;
    gap: 1.25rem;
}

.experience-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.25rem;
    padding: 1.65rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--panel);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.company-mark {
    display: inline-grid;
    width: 3rem;
    height: 3rem;
    place-items: center;
    border-radius: var(--radius-sm);
    color: #fff;
    background: linear-gradient(135deg, var(--navy-mid), var(--teal));
    font-weight: 600;
    font-size: .85rem;
    flex-shrink: 0;
}

.experience-head {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: flex-start;
}

.experience-head h2 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -.01em;
}

.experience-head p,
.experience-head span,
.experience-meta {
    margin: 0;
    color: var(--muted);
    font-weight: 400;
    font-size: .925rem;
}

.experience-head span {
    flex: 0 0 auto;
    color: var(--teal);
    font-weight: 500;
    font-size: .85rem;
    white-space: nowrap;
}

.experience-card ul {
    margin: 1rem 0;
    padding-left: 1.1rem;
    color: var(--ink-soft);
}

.experience-card li {
    margin-bottom: .4rem;
    font-size: .95rem;
}

.cert-list {
    display: grid;
    gap: 1rem;
    margin-top: 1.25rem;
}

.cert-list div {
    padding-top: 1rem;
    border-top: 1px solid var(--line);
}

.cert-list strong {
    font-weight: 600;
}

.cert-list span {
    display: block;
    color: var(--muted);
    font-size: .9rem;
    margin-top: .15rem;
}

/* ── Forms ── */
.form-label {
    font-weight: 500;
    font-size: .9rem;
    color: var(--ink-soft);
    margin-bottom: .4rem;
}

.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border-color: var(--line);
    min-height: 2.85rem;
    padding: .65rem 1rem;
    font-size: .95rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, .12);
}

textarea.form-control {
    min-height: auto;
}

.honeypot {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.alert-success {
    border-radius: var(--radius-sm);
    border: 1px solid rgba(13, 148, 136, .2);
    background: var(--teal-subtle);
    color: #0f766e;
}

/* ── Footer ── */
.site-footer {
    padding: 3rem 0 2rem;
    color: rgba(255, 255, 255, .7);
    background: var(--navy);
    border-top: 1px solid rgba(255, 255, 255, .06);
}

.footer-brand {
    font-weight: 600;
    font-size: 1.05rem;
    color: #fff;
    letter-spacing: -.01em;
}

.footer-tagline {
    color: rgba(255, 255, 255, .45);
    font-size: .9rem;
    margin-top: .35rem;
    max-width: 280px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    align-items: center;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    color: rgba(255, 255, 255, .65);
    font-weight: 500;
    font-size: .9rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--teal-light);
}

.footer-copy {
    color: rgba(255, 255, 255, .35);
    font-size: .85rem;
}

/* ── Scroll reveal ── */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity .6s var(--ease), transform .6s var(--ease);
}

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

.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }

/* ── Responsive ── */
@media (max-width: 991.98px) {
    .header-actions {
        width: 100%;
        margin-left: 0;
        margin-top: .75rem;
        padding-top: .75rem;
        border-top: 1px solid rgba(255, 255, 255, .08);
    }

    .header-actions .btn {
        flex: 1;
    }

    .hero {
        min-height: auto;
        padding: 3.5rem 0;
    }

    .hero::before {
        background:
            radial-gradient(ellipse 80% 50% at 50% 0%, rgba(20, 184, 166, .1), transparent),
            linear-gradient(180deg, rgba(10, 15, 26, .96), rgba(10, 15, 26, .88)),
            url("/images/developer-workspace.png") center / cover no-repeat;
    }

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

    .metric-band .metric {
        border-left: none;
        padding-left: 0;
        padding-top: 1rem;
        border-top: 1px solid rgba(255, 255, 255, .1);
    }

    .metric-band .row .col-sm-4:first-child .metric {
        border-top: none;
        padding-top: 0;
    }
}

@media (max-width: 575.98px) {
    .hero {
        padding: 2.5rem 0;
    }

    .hero p {
        font-size: 1rem;
    }

    .page-hero {
        padding: 3.5rem 0 2rem;
    }

    .section {
        padding: 3.5rem 0;
    }

    .experience-card {
        grid-template-columns: 1fr;
    }

    .experience-head {
        flex-direction: column;
        gap: .35rem;
    }

    .experience-head span {
        white-space: normal;
    }

    .proof-row {
        display: none;
    }

    .hero-actions .btn,
    .section-actions .btn {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }

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