/* ============================================================
   WHITECH — technical / spec-sheet design system
   ============================================================ */
:root {
    --ink: #14100c;
    --ink-2: #1b1611;
    --paper: #f3ede2;
    --orange: #ff5a1f;
    --orange-deep: #d3410e;
    --orange-dim: rgba(255, 90, 31, 0.14);
    --graphite: #8c8478;
    --line-strong: #ff5a1f;

    --bg-body: var(--ink);
    --bg-surface: var(--ink-2);
    --bg-surface-alt: #201a14;
    --bg-header: rgba(20, 16, 12, 0.92);
    --bg-input: #221b14;

    --text-body: #cdc4b6;
    --text-heading: #f3ede2;
    --muted: #8c8478;
    --white: #f3ede2;

    --line: rgba(243, 237, 226, 0.14);
    --shadow: 0 20px 44px rgba(0, 0, 0, 0.42);
    --radius: 2px;
    --container: 1180px;
    --grid-minor: rgba(243, 237, 226, 0.045);
    --grid-major: rgba(243, 237, 226, 0.08);

    --footer-bg: #0b0805;
    --success-bg: rgba(122, 189, 94, 0.12);
    --success-text: #9fd47f;
    --error-bg: rgba(224, 82, 62, 0.14);
    --error-text: #f28469;
    --warning-bg: var(--orange-dim);
    --warning-text: #ffab7a;
}

[data-theme="light"] {
    --bg-body: var(--paper);
    --bg-surface: #ffffff;
    --bg-surface-alt: #ece4d3;
    --bg-header: rgba(243, 237, 226, 0.92);
    --bg-input: #fffdf8;

    --text-body: #3a3226;
    --text-heading: #1c150c;
    --muted: #6b6252;
    --white: #ffffff;

    --line: rgba(28, 21, 12, 0.14);
    --shadow: 0 16px 34px rgba(40, 28, 12, 0.1);
    --grid-minor: rgba(28, 21, 12, 0.045);
    --grid-major: rgba(28, 21, 12, 0.09);

    --success-bg: rgba(58, 120, 32, 0.1);
    --success-text: #2f6b1c;
    --error-bg: rgba(190, 40, 20, 0.1);
    --error-text: #a4290f;
    --warning-bg: var(--orange-dim);
    --warning-text: #a6410f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'IBM Plex Sans', 'Cairo', sans-serif;
    background:
        linear-gradient(var(--grid-minor) 1px, transparent 1px) 0 0 / 28px 28px,
        linear-gradient(90deg, var(--grid-minor) 1px, transparent 1px) 0 0 / 28px 28px,
        linear-gradient(var(--grid-major) 1px, transparent 1px) 0 0 / 168px 168px,
        linear-gradient(90deg, var(--grid-major) 1px, transparent 1px) 0 0 / 168px 168px,
        var(--bg-body);
    color: var(--text-body);
    line-height: 1.7;
    transition: background-color 0.25s ease, color 0.25s ease;
}
body.rtl { direction: rtl; }
body.ltr { direction: ltr; }

::selection { background: var(--orange); color: #150d06; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { color: var(--text-heading); font-family: 'IBM Plex Sans', 'Cairo', sans-serif; font-weight: 600; }
.mono, code { font-family: 'IBM Plex Mono', 'Courier New', monospace; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; position: relative; }

/* Scroll progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0%;
    background: var(--orange);
    z-index: 999;
    transition: width 0.1s linear;
}

/* ============================================================
   Header / nav
   ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg-header);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; color: var(--text-heading); }
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1.5px solid var(--orange);
    color: var(--orange);
    font-weight: 700;
    font-family: 'IBM Plex Mono', monospace;
    flex-shrink: 0;
}
.brand-logo-img { height: 36px; width: auto; max-width: 160px; display: block; flex-shrink: 0; object-fit: contain; }
.brand-text { letter-spacing: 0.06em; font-family: 'IBM Plex Mono', monospace; font-size: 0.95rem; }
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: center;
    color: var(--muted);
    font-size: 0.88rem;
    font-family: 'IBM Plex Mono', monospace;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.main-nav a { position: relative; padding: 10px 12px; transition: color 0.15s ease; }
.main-nav a::after {
    content: '';
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 6px;
    height: 1px;
    background: var(--orange);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
}
.main-nav a:hover { color: var(--text-heading); }
.main-nav a:hover::after { transform: scaleX(1); }
.nav-mobile-extra { display: none; }
.header-actions { display: flex; align-items: center; gap: 10px; }

.primary-btn, .secondary-btn, .lang-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border-radius: var(--radius);
    font-weight: 600;
    font-family: inherit;
    font-size: 0.92rem;
    cursor: pointer;
    letter-spacing: 0.01em;
    border: 1px solid transparent;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.15s ease;
}
.primary-btn { background: var(--orange); color: #180d04; border-color: var(--orange); }
.primary-btn:hover { background: var(--orange-deep); border-color: var(--orange-deep); transform: translateY(-1px); }
.secondary-btn { background: transparent; border-color: var(--line); color: var(--text-heading); }
.secondary-btn:hover { border-color: var(--orange); color: var(--orange); }
.lang-pill {
    background: transparent;
    color: var(--muted);
    border-color: var(--line);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    text-transform: uppercase;
}
.lang-pill:hover { border-color: var(--orange); color: var(--orange); }
.primary-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-size: 0.95rem;
    flex-shrink: 0;
    transition: border-color 0.18s ease, color 0.18s ease;
}
.theme-toggle:hover { border-color: var(--orange); color: var(--orange); }
.admin-theme-toggle { position: fixed; top: 20px; inset-inline-end: 20px; z-index: 60; background: var(--bg-surface); }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line);
    background: transparent;
    cursor: pointer;
    flex-shrink: 0;
}
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--orange); transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   Scroll reveal — quiet, single easing, no stagger fireworks
   ============================================================ */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { opacity: 0; transform: translateY(14px); transition: opacity 0.45s ease, transform 0.45s ease; }
.reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.06s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.12s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.18s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.24s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.3s; }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 0.36s; }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 0.42s; }

/* ============================================================
   Section framing — spec-sheet devices
   ============================================================ */
.section { padding: 100px 0; position: relative; }
.section-alt { background: var(--bg-surface-alt); }

.section-head {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}
.section-head h2 { font-size: clamp(1.8rem, 2.6vw, 2.5rem); margin: 6px 0 0; font-weight: 600; }
.section-head p { color: var(--muted); max-width: 620px; margin: 6px 0 0; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.74rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--orange) !important;
    font-weight: 600;
}
.eyebrow::before { content: '//'; color: var(--muted); }
.sheet-index { font-size: 0.78rem; color: var(--muted); white-space: nowrap; padding-bottom: 4px; }

/* Corner-bracket card — the signature element */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--line);
    border-radius: 0;
    padding: 30px 26px;
    position: relative;
    transition: border-color 0.2s ease;
}
.card::before, .card::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    border: 1.5px solid transparent;
    transition: border-color 0.2s ease;
}
.card::before { top: -1px; left: -1px; border-top-color: var(--line); border-left-color: var(--line); }
.card::after { bottom: -1px; right: -1px; border-bottom-color: var(--line); border-right-color: var(--line); }
.card:hover { border-color: var(--line); }
.card:hover::before, .card:hover::after { border-color: var(--orange); }
.feature-icon {
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--orange);
    color: var(--orange);
    font-size: 1.15rem;
    margin-bottom: 18px;
}
.card h3 { margin: 0 0 12px; font-size: 1.12rem; }
.card p { margin: 0; color: var(--muted); }

.grid-2, .grid-3, .grid-4 { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.grid-2 > .card, .grid-3 > .card, .grid-4 > .card { border: none; }
.grid-2 > .card::before, .grid-2 > .card::after,
.grid-3 > .card::before, .grid-3 > .card::after,
.grid-4 > .card::before, .grid-4 > .card::after { display: none; }
.grid-2 > .card, .grid-3 > .card, .grid-4 > .card { background: var(--bg-surface); }

.values-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; border: 1px solid var(--line); }
.values-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: var(--bg-surface);
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
}
.values-list li:last-child { border-bottom: none; }
.values-list li strong { color: var(--text-heading); }
.check {
    width: 22px;
    height: 22px;
    border: 1px solid var(--orange);
    color: var(--orange);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    flex-shrink: 0;
    font-family: 'IBM Plex Mono', monospace;
}

.service-card { min-height: 280px; display: flex; flex-direction: column; justify-content: flex-start; }
.service-card ul { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 8px; color: var(--muted); font-size: 0.92rem; }
.service-card li { display: flex; align-items: baseline; gap: 8px; }
.service-card li::before { content: '—'; color: var(--orange); font-family: 'IBM Plex Mono', monospace; }

.client-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.client-item {
    background: var(--bg-surface);
    min-height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    color: var(--muted);
    font-weight: 600;
    text-align: center;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    transition: color 0.18s ease;
}
.client-item:hover { color: var(--orange); }

.client-logo-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.client-logo-item {
    background: #ffffff;
    min-height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: transform 0.2s ease;
}
.client-logo-item:hover { transform: translateY(-2px); }
.client-logo-item img { max-width: 100%; max-height: 56px; object-fit: contain; filter: grayscale(35%); transition: filter 0.2s ease; }
.client-logo-item:hover img { filter: grayscale(0%); }
.client-logo-item .mono { color: #3a3226; font-size: 0.8rem; font-weight: 600; text-align: center; }

.contact-wrap { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.contact-form { background: var(--bg-surface); padding: 28px; }
.input-group { margin-bottom: 18px; }
.input-group label { display: block; margin-bottom: 8px; font-weight: 600; color: var(--text-heading); font-size: 0.88rem; font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.03em; }
.input-group input, .input-group textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 0;
    background: var(--bg-input);
    color: var(--text-body);
    padding: 13px 14px;
    font: inherit;
    transition: border-color 0.15s ease;
}
.input-group input:focus, .input-group textarea:focus { outline: none; border-color: var(--orange); }
.input-group textarea { min-height: 150px; resize: vertical; }

.info-panel { background: var(--bg-surface); padding: 28px; }
.info-panel h3 { font-size: 1.05rem; }
.info-panel ul { list-style: none; padding: 18px 0 0; margin: 18px 0 0; border-top: 1px solid var(--line); display: grid; gap: 13px; color: var(--text-body); font-size: 0.94rem; }
.info-panel a { color: var(--orange); }
.info-panel strong { color: var(--muted); font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; display: block; margin-bottom: 2px; }

.news-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.news-card { background: var(--bg-surface); display: block; }
.news-card .news-thumb { height: 4px; background: var(--orange); }
.news-card .news-body { padding: 22px; }
.news-card .news-meta { color: var(--orange); font-weight: 600; font-size: 0.76rem; font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.04em; }
.news-card h3 { margin: 12px 0; font-size: 1.08rem; }
.news-card p { color: var(--muted); margin: 0; font-size: 0.94rem; }
.news-readmore { display: inline-block; margin-top: 14px; font-size: 0.78rem; color: var(--orange); }

/* ============================================================
   Hero — schematic diagram, not a stock gradient
   ============================================================ */
.hero {
    position: relative;
    color: var(--text-heading);
    min-height: 720px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 2;
}
.hero-content { padding: 48px 0; }
.hero h1 { font-size: clamp(2.3rem, 4vw, 3.4rem); line-height: 1.14; margin: 16px 0 20px; font-weight: 600; letter-spacing: -0.01em; }
.hero p { font-size: 1.02rem; max-width: 520px; color: var(--text-body); margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }

.hero-diagram { position: relative; z-index: 1; }
.hero-diagram svg { width: 100%; height: auto; overflow: visible; }
.hero-diagram .diagram-line {
    fill: none;
    stroke: var(--orange);
    stroke-width: 1.4;
    stroke-dasharray: 6 5;
    opacity: 0.75;
}
.hero-diagram .diagram-line-solid {
    fill: none;
    stroke: var(--line);
    stroke-width: 1;
}
.hero-diagram .diagram-node { fill: var(--bg-body); stroke: var(--orange); stroke-width: 1.4; }
.hero-diagram .diagram-node-dim { fill: var(--bg-body); stroke: var(--line); stroke-width: 1; }
.hero-diagram text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px;
    fill: var(--muted);
    letter-spacing: 0.04em;
}

.hero-card {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    border: 1px solid var(--line);
    margin-top: 44px;
    max-width: 560px;
}
.metric-card { padding: 16px 18px; border-right: 1px solid var(--line); }
.metric-card:last-child { border-right: none; }
body.rtl .metric-card { border-right: none; border-left: 1px solid var(--line); }
body.rtl .metric-card:last-child { border-left: none; }
.metric-card strong { display: block; font-size: 1.5rem; color: var(--orange); font-family: 'IBM Plex Mono', monospace; font-weight: 600; }
.metric-card span { color: var(--muted); font-size: 0.76rem; font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.03em; }

.page-hero { border-bottom: 1px solid var(--line); color: var(--text-heading); padding: 130px 0 76px; }
.page-hero h1 { margin: 12px 0 12px; font-size: clamp(2.1rem, 3.4vw, 3rem); font-weight: 600; }
.page-hero p { color: var(--muted); max-width: 600px; }
.article-hero {
    background-size: cover;
    background-position: center;
}
.article-hero .eyebrow { margin-bottom: 14px; }
.article-body { max-width: 760px; margin: 0 auto; font-size: 1.02rem; line-height: 1.9; }
.article-body p { margin: 0 0 22px; color: var(--text-body); }
.article-body p:last-child { margin-bottom: 0; }
.article-body h2, .article-body h3, .article-body h4, .article-body h5 { margin: 36px 0 16px; font-weight: 600; }
.article-body h2:first-child, .article-body h3:first-child { margin-top: 0; }
.article-body ul, .article-body ol { margin: 0 0 22px; padding-inline-start: 22px; color: var(--text-body); }
.article-body li { margin-bottom: 8px; }
.article-body a { color: var(--orange); text-decoration: underline; text-underline-offset: 2px; }
.article-body img { max-width: 100%; height: auto; margin: 8px 0 22px; border: 1px solid var(--line); }
.article-body blockquote { margin: 0 0 22px; padding: 4px 20px; border-inline-start: 3px solid var(--orange); color: var(--muted); font-style: italic; }
.article-body code { font-family: 'IBM Plex Mono', monospace; background: var(--bg-surface-alt); padding: 2px 6px; font-size: 0.9em; }
.article-body pre { margin: 0 0 22px; padding: 16px 18px; background: var(--bg-surface-alt); border: 1px solid var(--line); overflow-x: auto; }
.article-body pre code { background: none; padding: 0; }
.article-body table { width: 100%; border-collapse: collapse; margin: 0 0 22px; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 10px 12px; text-align: start; }
.article-body th { background: var(--bg-surface-alt); font-family: 'IBM Plex Mono', monospace; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
.article-body figure { margin: 0 0 22px; }
.article-body figcaption { margin-top: 8px; font-size: 0.86rem; color: var(--muted); text-align: center; }
.article-body hr { border: none; border-top: 1px solid var(--line); margin: 32px 0; }

/* ============================================================
   Admin / auth
   ============================================================ */
.admin-shell { max-width: 920px; margin: 80px auto; padding: 12px; }
.auth-card { background: var(--bg-surface); border: 1px solid var(--line); padding: 32px; }

.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg-body); }
.admin-login-card { width: min(480px, 100%); padding: 32px 28px 26px; border-top: 2px solid var(--orange); }
.login-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; }
.login-badge { font-size: 1.3rem; font-weight: 700; letter-spacing: 0.04em; color: var(--text-heading); font-family: 'IBM Plex Mono', monospace; }
.login-brand small { color: var(--muted); display: block; margin-top: 2px; font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; }

.login-form { display: grid; gap: 16px; }
.form-row label { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-weight: 600; color: var(--text-heading); font-size: 0.86rem; font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.03em; }
.form-row input, .form-row textarea, .form-row select {
    width: 100%;
    border: 1px solid var(--line);
    padding: 13px 14px;
    font: inherit;
    background: var(--bg-input);
    color: var(--text-body);
    transition: border-color 0.15s ease;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--orange); }
.form-row input[readonly] { opacity: 0.7; }
.otp-input { font-family: 'IBM Plex Mono', monospace; font-size: 1.15rem; letter-spacing: 0.12em; text-align: center; text-transform: uppercase; }
.field-hint { margin: 8px 0 0; color: var(--muted); font-size: 0.8rem; font-weight: 400; text-transform: none; letter-spacing: normal; }
.html-editor { font-family: 'IBM Plex Mono', monospace; font-size: 0.86rem; line-height: 1.6; }
.login-actions, .dashboard-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.notice { padding: 12px 16px; margin-bottom: 16px; font-weight: 500; border: 1px solid transparent; font-size: 0.92rem; }
.notice.success { background: var(--success-bg); color: var(--success-text); border-color: rgba(122,189,94,0.3); }
.notice.error { background: var(--error-bg); color: var(--error-text); border-color: rgba(224,82,62,0.3); }
.notice.warning { background: var(--warning-bg); color: var(--warning-text); border-color: rgba(255,90,31,0.3); }
.danger-btn { border-color: rgba(224, 82, 62, 0.35) !important; color: var(--error-text) !important; }
.danger-btn:hover { border-color: var(--error-text) !important; background: var(--error-bg); }

.admin-tab-nav { display: flex; gap: 0; flex-wrap: wrap; margin: 22px 0 24px; border-bottom: 1px solid var(--line); }

.tfa-status-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.tfa-badge { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; padding: 5px 10px; border: 1px solid; }
.tfa-badge.tfa-on { color: var(--success-text); border-color: rgba(122,189,94,0.35); background: var(--success-bg); }
.tfa-badge.tfa-off { color: var(--muted); border-color: var(--line); }

.tfa-setup-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 26px; align-items: start; margin-top: 6px; }
.tfa-qr-wrap { display: flex; align-items: center; justify-content: center; background: #ffffff; padding: 18px; border: 1px solid var(--line); min-height: 180px; }
@media (max-width: 640px) { .tfa-setup-grid { grid-template-columns: 1fr; } }

.recovery-codes-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 10px; margin-top: 16px; }
.recovery-code { font-family: 'IBM Plex Mono', monospace; font-size: 0.88rem; text-align: center; padding: 10px 6px; background: var(--bg-surface-alt); border: 1px solid var(--line); letter-spacing: 0.03em; }
@media (max-width: 640px) { .recovery-codes-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
.tab-btn { padding: 10px 18px; background: transparent; color: var(--muted); font-weight: 600; font-family: 'IBM Plex Mono', monospace; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab-btn:hover { color: var(--text-heading); }
.tab-btn.active { color: var(--orange); border-bottom-color: var(--orange); }

.stat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 12px; }
.stat-card { background: var(--bg-surface); padding: 20px; }
.stat-card span { display: block; font-size: 0.74rem; color: var(--muted); margin-bottom: 8px; font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.04em; }
.stat-card strong { font-size: clamp(1.6rem, 2vw, 2.1rem); color: var(--orange); font-family: 'IBM Plex Mono', monospace; }

.table-wrap { overflow-x: auto; margin-top: 22px; }
.table-wrap table { width: 100%; border-collapse: collapse; background: var(--bg-surface); border: 1px solid var(--line); }
.table-wrap th, .table-wrap td { padding: 13px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 0.92rem; }
.table-wrap th { background: var(--bg-surface-alt); font-family: 'IBM Plex Mono', monospace; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); font-weight: 600; }

.sso-cards { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 24px; }
.sso-card { background: var(--bg-surface); padding: 24px; }

.client-manage-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 22px; }
.client-manage-item { background: var(--bg-surface); padding: 18px; display: flex; flex-direction: column; gap: 10px; align-items: center; text-align: center; }
.client-manage-logo { width: 100%; height: 64px; display: flex; align-items: center; justify-content: center; background: #ffffff; border: 1px solid var(--line); }
.client-manage-logo img { max-width: 90%; max-height: 48px; object-fit: contain; }
.client-manage-name { font-size: 0.86rem; font-weight: 600; color: var(--text-heading); }
.client-manage-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.client-manage-actions .secondary-btn { padding: 8px 12px; font-size: 0.78rem; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--footer-bg); color: rgba(243,237,226,0.72); padding: 60px 0 28px; border-top: 2px solid var(--orange); }
.footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 1fr 1fr; gap: 32px; align-items: start; }
.site-footer h4 { color: var(--white); font-size: 0.86rem; margin: 0 0 16px; font-weight: 700; font-family: 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: 0.06em; }
.site-footer p, .site-footer li, .site-footer a { color: rgba(243,237,226,0.58); line-height: 1.8; font-size: 0.92rem; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a:hover { color: var(--orange); }
.site-footer .brand-mark { margin-bottom: 14px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(243,237,226,0.16);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(243,237,226,0.7);
    transition: border-color 0.18s ease, color 0.18s ease;
}
.footer-social a:hover { border-color: var(--orange); color: var(--orange); }
.footer-newsletter { margin-top: 18px; }
.footer-newsletter input {
    flex: 1;
    min-width: 0;
    border: 1px solid rgba(243,237,226,0.16);
    background: rgba(243,237,226,0.04);
    color: var(--white);
    padding: 11px 12px;
    font: inherit;
    font-size: 0.86rem;
}
.footer-newsletter input:focus { outline: none; border-color: var(--orange); }
.footer-newsletter .secondary-btn { color: var(--white); border-color: rgba(243,237,226,0.2); padding: 10px 16px; font-size: 0.86rem; }
.footer-newsletter .secondary-btn:hover { border-color: var(--orange); color: var(--orange); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 44px;
    padding-top: 22px;
    border-top: 1px solid rgba(243,237,226,0.1);
    font-size: 0.82rem;
    color: rgba(243,237,226,0.45);
}
.footer-meta { font-size: 0.76rem; }

.back-to-top {
    position: fixed;
    bottom: 24px;
    inset-inline-end: 24px;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    background: var(--bg-surface);
    color: var(--orange);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 40;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s, border-color 0.2s ease;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { border-color: var(--orange); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .client-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .client-logo-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .news-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .contact-wrap { grid-template-columns: 1fr; }
    .sso-cards { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .hero-inner { grid-template-columns: 1fr; }
    .hero-diagram { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
    .header-inner { min-height: 64px; }
    .hero { min-height: auto; }
    .cta-desktop-only { display: none; }
    .nav-toggle { display: inline-flex; }
    .header-actions .theme-toggle { display: none; }

    .main-nav {
        position: fixed;
        inset: 64px 0 0 0;
        z-index: 49;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        padding: 10px 24px 32px;
        background: var(--bg-body);
        border-top: 1px solid var(--line);
        transform: translateY(-8px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
        overflow-y: auto;
    }
    .main-nav.nav-open { opacity: 1; transform: translateY(0); visibility: visible; pointer-events: auto; }
    .main-nav a { padding: 16px 4px; border-bottom: 1px solid var(--line); font-size: 1.08rem; text-align: left; }
    .main-nav a:last-child { border-bottom: none; }
    .main-nav a::after { display: none; }

    .nav-mobile-extra {
        display: flex;
        flex-direction: column;
        gap: 14px;
        margin-top: 24px;
        padding-top: 24px;
        border-top: 1px solid var(--line);
    }
    .nav-mobile-extra .lang-pill,
    .nav-mobile-extra .theme-toggle {
        width: 100%;
        justify-content: flex-start;
        gap: 10px;
        padding: 12px 14px;
        border-radius: 0;
    }
    body.nav-locked { overflow: hidden; }

    .grid-2, .grid-3, .grid-4, .news-grid, .sso-cards, .client-grid, .footer-grid { grid-template-columns: 1fr; }
    .client-logo-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .stat-grid { grid-template-columns: 1fr; }
    .dashboard-actions { flex-direction: column; align-items: stretch; }
    .primary-btn, .secondary-btn { width: 100%; }
}

@media (max-width: 520px) {
    .section { padding: 64px 0; }
    .hero-card { grid-template-columns: 1fr; max-width: none; }
    .metric-card { border-right: none; border-bottom: 1px solid var(--line); }
    .metric-card:last-child { border-bottom: none; }
    .admin-login-card { padding: 24px 18px 20px; }
}

@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; }
    .reveal, .reveal-stagger > * { opacity: 1; transform: none; }
}