/* ==========================================================================
   iMplenet Technologies — main stylesheet
   Design language: network hardware. Status LEDs, port labels, faceplates.
   ========================================================================== */

:root {
    /* Palette */
    --ink:        #10222E;   /* deep slate — headings, footer */
    --ink-soft:   #3C4F5C;   /* body text */
    --paper:      #F4F6F8;   /* page background */
    --panel:      #FFFFFF;   /* cards, form */
    --line:       #D8E0E6;   /* hairline borders */
    --led-green:  #23A55A;   /* link / online */
    --led-amber:  #F0A429;   /* activity / under development */
    --accent:     #155E75;   /* deep signal teal — buttons, links */
    --accent-dark:#0E4356;

    /* Type */
    --font-display: "Archivo", sans-serif;
    --font-body:    "IBM Plex Sans", sans-serif;
    --font-mono:    "IBM Plex Mono", monospace;

    --radius: 10px;
    --container: 1100px;
}

/* ---------- Reset & base ---------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--ink-soft);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
}

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

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
    outline: 3px solid var(--led-amber);
    outline-offset: 2px;
    border-radius: 4px;
}

.container {
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 1.25rem;
}

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- Status LEDs (signature motif) ---------- */
.led {
    display: inline-block;
    width: 9px; height: 9px;
    border-radius: 50%;
    flex-shrink: 0;
}
.led-green {
    background: var(--led-green);
    box-shadow: 0 0 6px 1px rgba(35, 165, 90, 0.55);
}
.led-amber {
    background: var(--led-amber);
    box-shadow: 0 0 6px 1px rgba(240, 164, 41, 0.6);
    animation: led-blink 1.6s ease-in-out infinite;
}
.led-lg { width: 14px; height: 14px; }

@keyframes led-blink {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.25; }
}

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(244, 246, 248, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-block: 0.85rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
}
.brand:hover { text-decoration: none; }

.brand-led {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--led-green);
    box-shadow: 0 0 7px 1px rgba(35, 165, 90, 0.55);
}

.brand-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
    color: var(--ink);
}
.brand-dot { color: var(--led-green); }

.site-nav ul {
    display: flex;
    gap: 1.75rem;
    list-style: none;
}

.site-nav a {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-soft);
    padding-block: 0.35rem;
    border-bottom: 2px solid transparent;
}
.site-nav a:hover {
    color: var(--ink);
    text-decoration: none;
    border-bottom-color: var(--led-amber);
}
.site-nav a.active {
    color: var(--ink);
    border-bottom-color: var(--led-green);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
}
.nav-toggle-bar {
    width: 22px; height: 2px;
    background: var(--ink);
    transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding-block: 4.5rem 5rem; }

.status-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 2.25rem;
}

.status-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--panel);
    color: var(--ink);
}
.status-building { border-color: rgba(240, 164, 41, 0.5); }

.hero h1 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
}

.tagline {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    color: var(--ink-soft);
    margin-bottom: 1.5rem;
}

.hero-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-stretch: 115%;
    font-size: clamp(2.4rem, 6.5vw, 4.4rem);
    line-height: 1.04;
    letter-spacing: -0.025em;
    color: var(--ink);
    margin-bottom: 1.5rem;
}

.hero-lead {
    max-width: 42rem;
    font-size: 1.08rem;
    margin-bottom: 2.25rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.98rem;
    padding: 0.8rem 1.7rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--accent);
    color: #FFFFFF;
}
.btn-primary:hover { background: var(--accent-dark); }

.btn-ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-block { width: 100%; }

/* ---------- Sections ---------- */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.5rem, 3.4vw, 2.2rem);
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--ink);
    max-width: 36rem;
    margin-bottom: 2.5rem;
}

/* ---------- Services ---------- */
.services {
    padding-block: 4.5rem;
    background: var(--panel);
    border-block: 1px solid var(--line);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

.service-card {
    position: relative;
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.6rem 1.4rem 1.5rem;
    transition: border-color 0.2s ease, transform 0.2s ease;
}
.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
}
.service-card::after {          /* status LED in card corner */
    content: "";
    position: absolute;
    top: 1.5rem; right: 1.3rem;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--led-green);
    box-shadow: 0 0 5px 1px rgba(35, 165, 90, 0.5);
}

.port-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    color: var(--ink-soft);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 0.15rem 0.45rem;
    margin-bottom: 0.9rem;
    background: var(--panel);
}

.service-card h3 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.08rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
    padding-right: 1.25rem;
}

.service-card p { font-size: 0.94rem; }

.services-note {
    max-width: 46rem;
    font-size: 0.98rem;
    border-left: 3px solid var(--led-green);
    padding-left: 1rem;
}

/* ---------- Under-development notice ---------- */
.notice { padding-block: 3.5rem; }

.notice-faceplate {
    display: flex;
    align-items: flex-start;
    gap: 1.1rem;
    background: var(--ink);
    color: #C7D3DC;
    border-radius: var(--radius);
    padding: 1.6rem 1.75rem;
    border: 1px solid #223949;
}
.notice-faceplate .led { margin-top: 0.35rem; }

.notice-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    color: var(--led-amber);
    margin-bottom: 0.4rem;
}

.notice-text p:last-child { max-width: 46rem; }

/* ---------- Contact ---------- */
.contact {
    padding-block: 4.5rem 5rem;
    background: var(--panel);
    border-top: 1px solid var(--line);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

.contact-form {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.75rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-field { margin-bottom: 1.1rem; }

.form-field label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink);
    margin-bottom: 0.4rem;
}

.optional { color: var(--ink-soft); text-transform: none; letter-spacing: 0; }

.form-field input,
.form-field textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.98rem;
    color: var(--ink);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0.7rem 0.85rem;
    transition: border-color 0.2s ease;
}
.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(21, 94, 117, 0.14);
}

.form-field textarea { resize: vertical; }

.form-feedback {
    margin-top: 0.85rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    min-height: 1.2em;
}
.form-feedback.ok    { color: var(--led-green); }
.form-feedback.error { color: #C0392B; }

/* Contact details */
.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-left: 3px solid var(--led-green);
    border-radius: var(--radius);
    padding: 1.1rem 1.3rem;
}

.detail-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    color: var(--ink-soft);
    margin-bottom: 0.25rem;
}

.detail-value {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.02rem;
    color: var(--ink);
    word-break: break-word;
}
a.detail-value:hover { color: var(--accent); text-decoration: none; }

.detail-note { font-size: 0.92rem; padding-inline: 0.25rem; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--ink);
    color: #9FB1BE;
    padding-block: 3rem 1.5rem;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #223949;
}

.footer-brand .brand-name { color: #FFFFFF; font-size: 1.25rem; }
.footer-tag { font-size: 0.92rem; margin-top: 0.35rem; }

.footer-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}
.footer-nav a,
.footer-contact a {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 0.05em;
    color: #C7D3DC;
}
.footer-nav a:hover,
.footer-contact a:hover { color: var(--led-amber); text-decoration: none; }

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    padding-top: 1.5rem;
    font-size: 0.85rem;
}

.footer-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--led-amber);
}

/* ---------- Scroll reveal (progressive enhancement) ---------- */
.reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
    opacity: 1;
    transform: none;
}
/* If JS never runs, cards must still be visible */
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .led-amber { animation: none; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .service-card, .btn, .nav-toggle-bar { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
    .contact-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 1.75rem; }
}

@media (max-width: 700px) {
    .nav-toggle { display: flex; }

    .site-nav {
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        background: var(--panel);
        border-bottom: 1px solid var(--line);
        display: none;
    }
    .site-nav.open { display: block; }

    .site-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 0.5rem 1.25rem 1rem;
    }
    .site-nav a {
        display: block;
        padding-block: 0.75rem;
        border-bottom: none;
    }

    .hero { padding-block: 3rem 3.5rem; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
}

/* ==========================================================================
   Inner pages (about.php, services.php, contact.php)
   ========================================================================== */

/* ---------- Page header ---------- */
.page-header {
    padding-block: 4rem 3rem;
    border-bottom: 1px solid var(--line);
}

.page-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-stretch: 115%;
    font-size: clamp(2.1rem, 5.5vw, 3.4rem);
    line-height: 1.06;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 1rem;
}

.page-intro {
    max-width: 44rem;
    font-size: 1.06rem;
}

/* ---------- About page ---------- */
.about-body { padding-block: 4rem; }

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

.about-text p + p { margin-top: 1rem; }
.about-text .section-title { margin-bottom: 1.25rem; }

.about-panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1.5rem 1.6rem;
}
.about-panel .detail-label { margin-bottom: 0.9rem; }

/* ---------- Check list (LED bullets) ---------- */
.check-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.96rem;
    color: var(--ink);
}
.check-list .led { animation: none; }   /* steady green, no blink */

/* ---------- Services page: detail rows ---------- */
.service-list { padding-block: 4rem; }

.service-row {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 2rem;
    padding: 2.25rem 0;
    border-bottom: 1px solid var(--line);
}
.service-row:first-child { padding-top: 0; }

.service-row-head h2 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.3rem, 2.6vw, 1.65rem);
    line-height: 1.2;
    letter-spacing: -0.015em;
    color: var(--ink);
    margin-top: 0.75rem;
}

.service-row-body p { margin-bottom: 1.1rem; }

/* ---------- CTA strip ---------- */
.cta-strip {
    padding-block: 3.5rem 4.5rem;
}

.cta-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    background: var(--ink);
    border-radius: var(--radius);
    padding: 2.25rem 2.5rem;
    color: #C7D3DC;
}

.cta-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.35rem, 3vw, 1.8rem);
    letter-spacing: -0.015em;
    color: #FFFFFF;
    margin-bottom: 0.35rem;
}

/* ---------- Contact page ---------- */
.contact-page { border-top: none; }

/* ---------- Responsive (inner pages) ---------- */
@media (max-width: 860px) {
    .about-grid { grid-template-columns: 1fr; }
    .service-row { grid-template-columns: 1fr; gap: 1rem; padding-block: 1.9rem; }
    .cta-inner { padding: 1.75rem 1.5rem; }
}