:root {
    --blue: #3a8fd8;
    --dark: #1a1a1a;
    --border: #d0d0d0;
    --table-header: #e8e8e8;
    --quote-border: #3a8fd8;
    --slide-bg: #ffffff;
    --nav-bg: #1e2a35;
    --nav-height: 56px;
    --font: 'Source Sans 3', 'Calibri', Arial, sans-serif;
  }

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

body {
font-family: var(--font);
background: #f0f0f0;
color: var(--dark);
padding-top: var(--nav-height);
}

/* ─── NAVBAR ─────────────────────────────────────────── */
nav {
position: fixed;
top: 0; left: 0; right: 0;
height: var(--nav-height);
background: var(--nav-bg);
display: flex;
align-items: center;
padding: 0 16px;
z-index: 1000;
gap: 4px;
overflow-x: auto;
box-shadow: 0 2px 8px rgba(0,0,0,.35);
}
nav::-webkit-scrollbar { height: 3px; }
nav::-webkit-scrollbar-thumb { background: #3a8fd8; border-radius: 2px; }

.nav-logo {
display: flex;
align-items: center;
gap: 8px;
margin-right: 12px;
flex-shrink: 0;
}
.nav-logo img { height: 34px; filter: brightness(0) invert(1); }

.nav-divider {
width: 1px;
height: 28px;
background: rgba(255,255,255,.2);
margin-right: 8px;
flex-shrink: 0;
}

nav a {
color: rgba(255,255,255,.75);
text-decoration: none;
font-size: 12.5px;
font-weight: 600;
white-space: nowrap;
padding: 6px 11px;
border-radius: 5px;
transition: background .2s, color .2s;
flex-shrink: 0;
letter-spacing: .02em;
}
nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
nav a.active {
background: var(--blue);
color: #fff;
}

/* ─── SLIDE WRAPPER ──────────────────────────────────── */
.slide-section {
display: none;
min-height: calc(100vh - var(--nav-height));
padding: 40px 0 60px;
}
.slide-section.active { display: block; }

.slide {
width: 960px;
max-width: 98vw;
margin: 0 auto;
background: var(--slide-bg);
box-shadow: 0 4px 24px rgba(0,0,0,.14);
border-radius: 4px;
overflow: hidden;
}

.cover-taglines p {
    font-size: 16px;
    color: #222;
    padding: 14px 0;
    border-bottom: 1px solid #d8e8f4;
    line-height: 1.5;
    font-family: 'Roboto Mono', monospace; /* ADD THIS LINE */
}

/* ─── TYPOGRAPHY HELPERS ────────────────────────────── */
.brand {
font-weight: 700;
color: var(--dark);
}
.brand .v { color: var(--blue); }

/* ─── SLIDE 1 – COVER ────────────────────────────────── */
#slide1 .slide { display: flex; min-height: 560px; }

.cover-left {
width: 50%;
background: #e8e8e8d3;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
padding: 48px 36px;
gap: 14px;
}
.cover-left .logo-img {
width: 480px;
max-width: 90%;
}
.pitg-badge {
display: flex;
flex-direction: column;
align-items: center;
gap: 10px;
}
.pitg-circle {
width: 110px; height: 110px;
border-radius: 50%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
}
.pitg-circle .pitg-text { font-size: 22px; font-weight: 800; }
.pitg-sub { font-size: 10px; font-weight: 600; letter-spacing: .06em; color: #555; }
.pitg-initiative {
font-size: 16px;
color: var(--dark);
}
.pitg-initiative a { color: var(--blue); font-weight: 700; text-decoration: none; }

.cover-right {
width: 50%;
display: flex;
flex-direction: column;
justify-content: flex-end;
padding: 48px 40px 48px 48px;
}
.cover-taglines {
border: 2px dashed #aac7e8;
border-radius: 4px;
padding: 24px 28px;
display: flex;
flex-direction: column;
gap: 0;
}
.cover-taglines p {
font-size: 16px;
color: #222;
padding: 14px 0;
border-bottom: 1px solid #d8e8f4;
line-height: 1.5;
}
.cover-taglines p:last-child { border-bottom: none; }

/* ─── SLIDE 2 – ABOUT ────────────────────────────────── */
#slide2 .slide-body {
padding: 40px 48px 32px;
display: grid;
grid-template-columns: 1fr 1fr;
gap: 32px;
}
#slide2 .slide-body p {
font-size: 15px;
line-height: 1.75;
color: #2a2a2a;
text-align: justify;
}
#slide2 .slide-body .brand-inline { font-weight: 700; }
.quote-block {
padding: 16px 0 20px 20px;
border-left: 3.5px solid var(--blue);
margin: 24px 48px 32px;
font-size: 15px;
line-height: 1.7;
color: #2a2a2a;
}
.pitg-footer {
display: flex;
justify-content: flex-end;
padding: 0 32px 20px;
gap: 8px;
align-items: center;
}
.pitg-footer-small {
width: 52px; height: 52px;
border: 2px solid var(--blue);
border-radius: 50%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
font-size: 8px;
font-weight: 700;
color: var(--blue);
line-height: 1.1;
}
.pitg-footer-small .t { font-size: 13px; font-weight: 800; }
.copyright-mark {
font-size: 13px;
color: #aaa;
margin-right: 4px;
}

/* ─── SLIDE HEADER (slides 3-7) ─────────────────────── */
.slide-header {
padding: 28px 48px 12px;
border-bottom: 1.5px solid #d0d0d0;
margin-bottom: 0;
}
.slide-header h1 {
font-size: 28px;
font-weight: 400;
color: var(--dark);
letter-spacing: -.01em;
}
.slide-header h1 .brand-bold { font-weight: 700; }

/* ─── SLIDE 3 – ARCHITECTURE ─────────────────────────── */
#slide3 .slide-body {
padding: 32px 48px 40px;
display: flex;
justify-content: center;
align-items: center;
}
.arch-diagram {
width: 100%;
max-width: 720px;
font-size: 13px;
font-family: var(--font);
}
.arch-row {
display: flex;
align-items: center;
justify-content: center;
gap: 16px;
margin: 20px 0;
}
.arch-zone {
border-radius: 8px;
padding: 16px;
text-align: center;
}
.arch-zone.mz {
border: 2px solid #d8a0d8;
background: rgba(216,160,216,.08);
}
.arch-zone.dmz {
border: 2px solid #c8a840;
background: rgba(200,168,64,.07);
}
.zone-label {
font-size: 10px;
font-weight: 700;
letter-spacing: .08em;
text-transform: uppercase;
color: #888;
margin-bottom: 12px;
display: flex;
align-items: center;
gap: 5px;
}
.zone-label .icon { font-size: 14px; }
.arch-item {
display: flex;
flex-direction: column;
align-items: center;
gap: 5px;
padding: 8px 12px;
}
.arch-item .icon-box {
width: 48px; height: 48px;
display: flex;
align-items: center;
justify-content: center;
font-size: 28px;
}
.arch-item .label {
font-size: 11.5px;
text-align: center;
line-height: 1.3;
color: #333;
max-width: 80px;
}
.arch-connector {
display: flex;
align-items: center;
color: #888;
font-size: 18px;
flex-direction: column;
gap: 2px;
}
.arch-connector.dashed { letter-spacing: -2px; font-size: 13px; color: #555; }
.arch-items-col {
display: flex;
flex-direction: column;
gap: 24px;
}
.arch-items-row {
display: flex;
gap: 8px;
}
.user-icon { font-size: 40px; color: #4a9fd4; }
.arch-arrow { font-size: 22px; color: #666; }
.arch-arrow-v { font-size: 18px; color: #666; transform: rotate(90deg); display: inline-block; }

/* ─── TABLE SLIDES (4 & 5) ──────────────────────────── */
.slide-subtitle {
padding: 14px 48px 20px;
font-size: 15px;
color: #2a2a2a;
line-height: 1.65;
border-left: 3.5px solid var(--blue);
margin: 18px 48px 24px;
}
.feature-table {
width: calc(100% - 96px);
margin: 0 auto 32px;
border-collapse: collapse;
font-size: 13.5px;
}
.feature-table th {
background: var(--table-header);
font-weight: 700;
padding: 12px 16px;
text-align: center;
border: 1px solid #c8c8c8;
font-size: 13px;
}
.feature-table th:first-child { text-align: left; }
.feature-table td {
padding: 12px 16px;
border: 1px solid #d0d0d0;
vertical-align: top;
line-height: 1.55;
color: #2a2a2a;
}
.feature-table td:first-child { font-weight: 700; width: 22%; }
.feature-table tr:nth-child(even) td { background: #fafafa; }
.feature-table strong { font-weight: 700; }

/* ─── SLIDE 6 – NO CODE ──────────────────────────────── */
#slide6 .slide-body {
padding: 24px 48px 36px;
}
.salient-grid {
display: flex;
flex-direction: column;
gap: 0;
margin-top: 8px;
}
.salient-row {
    display: grid;
    grid-template-columns: 1fr 60px 190px; /* text | video icon | doc link */
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid #ececec;
    gap: 20px;
}
.salient-row:last-child { border-bottom: none; }

.salient-text {
    font-size: 14.5px;
    color: #2a2a2a;
    line-height: 1.5;
}

.salient-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.doc-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 1px; /* keeps column even when empty */
}
.video-icon {
width: 44px; height: 34px;
background: #f0f0f0;
border: 1.5px solid #ccc;
border-radius: 3px;
display: flex;
align-items: center;
justify-content: center;
color: #666;
font-size: 16px;
position: relative;
}
.video-icon::before, .video-icon::after {
content: '';
position: absolute;
bottom: -5px;
width: 100%;
height: 3px;
background: #ccc;
left: 0;
}
.video-icon::after { bottom: -9px; }
.doc-links {
display: flex;
flex-direction: column;
gap: 8px;
margin-left: auto;
padding-left: 20px;
flex-shrink: 0;
min-width: 140px;
text-decoration: underline;
}

.doc-link .doc-icon { font-size: 16px; }

/* ─── SLIDE 7 – DEPLOYMENT ───────────────────────────── */
#slide7 .slide-body {
padding: 24px 48px 40px;
}
#slide7 ul {
list-style: none;
display: flex;
flex-direction: column;
gap: 16px;
margin-top: 8px;
}
#slide7 ul li {
display: flex;
gap: 14px;
font-size: 15px;
line-height: 1.65;
color: #2a2a2a;
}
#slide7 ul li::before {
content: '●';
color: var(--dark);
font-size: 8px;
margin-top: 7px;
flex-shrink: 0;
}

/* ─── DIAGONAL CORNER DECORATION ────────────────────── */
.slide-footer-decor {
display: flex;
justify-content: flex-end;
align-items: flex-end;
padding: 0 24px 20px;
gap: 6px;
position: relative;
}
.diagonal-line {
width: 60px;
height: 60px;
border-right: 1.5px solid #ccc;
transform: rotate(-45deg) translateX(8px);
margin-right: -8px;
}