/* ==========================================================================
   Nile University Job Talk - Modern Academic Reveal.js Stylesheet
   Dr. Islam Akef Ebeid - School of ITCS
   ========================================================================== */

:root {
    --primary-accent: #00d2ff;
    --secondary-accent: #f5a623;
    --success-accent: #2ecc71;
    --purple-accent: #a855f7;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --border-card: rgba(0, 210, 255, 0.22);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --text-muted: #64748b;
}

/* Base presentation typography & layout */
.reveal {
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 24px;
    color: var(--text-main);
    line-height: 1.4;
}

.reveal .slides {
    text-align: center;
}

.reveal .slides section {
    padding: 10px 20px;
    box-sizing: border-box;
}

/* Headings */
.reveal h1, .reveal h2, .reveal h3, .reveal h4 {
    font-family: 'Source Sans Pro', sans-serif;
    text-transform: none;
    letter-spacing: -0.02em;
    font-weight: 700;
    margin: 0 0 10px 0;
}

.reveal h1 { 
    font-size: 2.1em; 
    color: #ffffff; 
    line-height: 1.15;
}

.reveal h2 { 
    font-size: 1.5em; 
    color: var(--primary-accent); 
    margin-bottom: 6px; 
}

.reveal h3 { 
    font-size: 1.15em; 
    color: var(--secondary-accent); 
    margin-bottom: 8px; 
}

.subtitle {
    font-size: 0.78em;
    color: var(--text-dim);
    margin-top: 0;
    margin-bottom: 18px;
    letter-spacing: 0.01em;
}

/* Highlight helpers */
.highlight-blue { color: var(--primary-accent); font-weight: 600; }
.highlight-gold { color: var(--secondary-accent); font-weight: 600; }
.highlight-green { color: var(--success-accent); font-weight: 600; }
.highlight-purple { color: var(--purple-accent); font-weight: 600; }

/* Badges & Pills */
.badge {
    display: inline-block;
    background: rgba(0, 210, 255, 0.12);
    color: var(--primary-accent);
    border: 1px solid rgba(0, 210, 255, 0.35);
    padding: 2px 9px;
    border-radius: 12px;
    font-size: 0.62em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 1px 3px;
    vertical-align: middle;
}

.badge-gold {
    background: rgba(245, 166, 35, 0.14);
    color: var(--secondary-accent);
    border-color: rgba(245, 166, 35, 0.4);
}

.badge-green {
    background: rgba(46, 204, 113, 0.14);
    color: var(--success-accent);
    border-color: rgba(46, 204, 113, 0.4);
}

.badge-purple {
    background: rgba(168, 85, 247, 0.14);
    color: var(--purple-accent);
    border-color: rgba(168, 85, 247, 0.4);
}

/* Acronym Explainer */
abbr.acronym {
    border-bottom: 1px dotted var(--primary-accent);
    text-decoration: none;
    font-weight: 600;
    cursor: help;
}

.acronym-pill {
    display: inline-block;
    font-size: 0.75em;
    color: var(--text-dim);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 8px;
    border-radius: 4px;
    border-left: 2px solid var(--secondary-accent);
    margin: 2px 0;
}

/* Responsive Grids */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    text-align: left;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 14px;
    text-align: left;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    text-align: left;
}

/* Card Styling */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 8px;
    padding: 12px 16px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
    font-size: 0.82em;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.card h4 {
    margin: 0 0 6px 0;
    color: #ffffff;
    font-size: 1em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 4px;
}

.card p {
    margin: 0 0 6px 0;
    line-height: 1.35;
}

/* Metric / Stat Boxes */
.stat-card {
    background: linear-gradient(135deg, rgba(0, 210, 255, 0.1), rgba(0, 40, 80, 0.25));
    border: 1px solid rgba(0, 210, 255, 0.35);
    border-radius: 8px;
    padding: 10px 8px;
    text-align: center;
}

.stat-number {
    font-size: 1.7em;
    font-weight: 800;
    color: var(--primary-accent);
    line-height: 1.05;
}

.stat-label {
    font-size: 0.65em;
    color: #cbd5e1;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 4px;
    line-height: 1.2;
}

/* Clean, un-cluttered compact list */
ul.compact-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

ul.compact-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 6px;
    line-height: 1.32;
    color: #e2e8f0;
}

ul.compact-list li:last-child {
    margin-bottom: 0;
}

ul.compact-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--primary-accent);
    font-size: 1em;
}

/* Timeline */
.timeline-item {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
    border-left: 2px solid var(--primary-accent);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item .time {
    font-size: 0.68em;
    color: var(--secondary-accent);
    font-weight: 700;
    line-height: 1.1;
}

.timeline-item .title {
    font-weight: 600;
    color: #ffffff;
    font-size: 0.88em;
    line-height: 1.2;
}

.timeline-item .desc {
    font-size: 0.74em;
    color: var(--text-dim);
    line-height: 1.25;
}

/* Spotlight Card for Special / Personal Project */
.spotlight-card {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.12), rgba(20, 20, 35, 0.4));
    border: 1px solid rgba(168, 85, 247, 0.4);
    border-radius: 8px;
    padding: 14px 18px;
    text-align: left;
    box-shadow: 0 4px 20px rgba(168, 85, 247, 0.15);
}

/* Links */
a {
    color: var(--primary-accent) !important;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}