/* main.css */

/* These are the colors and fonts used throughout the webpage.
 *   'Roboto',sans-serif; Font for the title text
 *   'Roboto-Slab',serif; Font for the body text 
 *   #fafafa; Background color of the site
 *   #2c3e50; Foreground (text) color of the site
 *   #2c5f8a; Nordic blue – current page in navigation, special titles
 *   #1a6b4a; Nordic green – title accent, hover color for links
 *   #2c5f8a; Heading color, titles in the Program
 *   #1a5c3a; Link hover color
 *   #1a6b4a; Link color
 */

@import url('https://fonts.googleapis.com/css?family=Roboto%7CRoboto+Slab');

html { scroll-behavior: smooth; }

*{
    border:0;
    font:inherit;
    font-size:1em;
    margin:0;
    padding:0;
    vertical-align:baseline;
}

body{
    background-color: #fafafa;
    background-size: cover;
    background-attachment: fixed;
    color: #2c3e50; 
    text-align:left;
    font-family:'Roboto',sans-serif;
    font-size:1em;
    line-height:1.5em;
    margin: 0 auto;
    width: 1000px;
    padding-bottom: 40px;
}

a{color: #1a6b4a; text-decoration:none;}
a.current{color: #2c5f8a;}
a.current:hover{color: #1a5c3a;}
a:hover{color: #1a5c3a;}
a:active{color: #1a5c3a;}
h1,h2,h3,h4{clear:left; color: #2c5f8a; margin:1.5em 0em 1em 0em; font-family:'Roboto Slab',serif; text-shadow: 1px 1px 2px #d0d0d0;}
h1{font-size:2.67em;}
h2{font-size:2.00em;}
h3{font-size:1.67em;}
h4{font-size:1.33em;}
p{list-style:none; margin:24px auto 24px auto; padding:0px; width:900px; text-align:left;}
li a, p a {text-decoration:underline; text-decoration-color:#1a6b4a;}
ul{list-style:none; margin:24px auto 24px auto; padding:0px; width:800px; text-align:left;}
ul li{list-style:none; margin:0px auto 0px auto; padding:0px; text-align:left;}
i,em{font-style:italic;}
b,strong{font-weight:bold;}
sup{
    vertical-align: super;
    font-size: 0.8em;
    line-height: 0;
}
sub{
    vertical-align: sub;
    font-size: 0.8em;
    line-height: 0;
}
table{
    width: 1000px;
    margin: 12px auto 24px auto;
    float: center;
    /* UNCOMMENT THIS FOR DEBUGGING THE ALIGNMENT */
    /*border: 1px solid black;*/
}
th,td{
    text-align: left;
    /* UNCOMMENT THIS FOR DEBUGGING THE ALIGNMENT */
    /*border: 1px solid black;*/
}

/* Hero section */
.hero {
    position: relative;
    width: 1000px;
    height: 320px;
    overflow: hidden;
    background-color: #2c3e50; /* fallback if image fails */
}
.hero-img {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 45%;
    display: block;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(20,40,60,0.30) 0%, rgba(20,40,60,0.65) 100%);
    pointer-events: none;
}
.hero-content {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 56px;
    box-sizing: border-box;
}
.hero-title {
    font-family: 'Roboto Slab', serif;
    font-size: 2.1em;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.6);
    margin: 0 0 14px 0;
    line-height: 1.25em;
}
.hero-sub {
    font-size: 1.05em;
    color: rgba(255,255,255,0.93);
    text-shadow: 0 1px 5px rgba(0,0,0,0.55);
    margin: 3px auto;
    width: auto;
    text-align: center;
    padding: 0;
}

/* Navigation – sticky blue bar */
table.navigation {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 1000px;
    background: #2c5f8a;
    margin: 0 auto 0 auto;
    box-shadow: 0 2px 6px rgba(0,0,0,0.18);
}
td.navigation {
    font-size: 0.88em;
    white-space: nowrap;
    width: 12.5%;
    text-align: center;
    vertical-align: middle;
    padding: 11px 2px;
}
td.navigation a { color: rgba(255,255,255,0.82); text-decoration: none; }
td.navigation a.current { color: #fff; font-weight: bold; border-bottom: 2px solid rgba(255,255,255,0.7); padding-bottom: 2px; }
td.navigation a:hover { color: #fff; }

/* Sponsor Images */
table.sponsors{width:800px;}
td.sponsor{white-space:nowrap; width:33%; text-align:center; vertical-align:middle; padding:0px 0px 0px 0px;}
td.sponsor img{width: 100%}

/* The Table on the Program Page */
td.room{padding: 4px 12px 4px 4px; width: 90%; vertical-align:bottom; font-size:1.67em; color: #52739e; height:32px;}
td.date{white-space:nowrap; width:130px; text-align:right; vertical-align:top; padding:4px 16px 0px 0px;}
td.title{padding: 4px 12px 4px 4px; width: 90%; vertical-align:top; font-size:1.5em; color: #2c5f8a; height:32px; font-family:'Roboto Slab',serif; text-shadow: 1px 1px 2px #d0d0d0; }
td.title-special{padding: 4px 12px 4px 4px; width: 90%; vertical-align:top; font-size:1.67em; color: #1a6b4a; height:32px; font-family:'Roboto Slab',serif; text-shadow: 1px 1px 2px #d0d0d0;}
td.speaker{padding: 4px 12px 4px 4px; font-style: italic; font-size:1em; max-height:999999px}
td.abstract{padding: 4px 12px 12px 4px; font-size:1em; max-height:999999px}
td.abstract img{display: block; margin: 4px auto 8px auto}
table.plenary{padding-top: 8px; background: #ffffff;}

/* Registration and Directions iframes and Images */
iframe.registration{display:block; margin:1em auto 2em auto; width:700px; height:1400px; border:none;}
iframe.directions{display:block; margin:1em auto 2em auto; width:800px; height:400px; border:none;}
img.center{display:block; width:67%; margin:1em auto 2em auto;}

/* Flyer Images */
table.flyers{width:800px;}
td.flyer{white-space:nowrap; width:50%; text-align:center; vertical-align:middle; padding:0px 0px 0px 0px;}
td.sponsor img{width: 100%}

footer{font-size:0.875em; margin-top:6em; text-align:center;}

/* Single-page sections */
section {
    padding-top: 16px;
    scroll-margin-top: 46px; /* offset for sticky nav */
}

/* Preliminary badge */
.prelim-badge {
    display: inline-block;
    font-family: 'Roboto', sans-serif;
    font-size: 0.42em;
    font-weight: normal;
    background: #e8f0e8;
    color: #1a6b4a;
    border: 1px solid #b0d0b0;
    border-radius: 3px;
    padding: 2px 8px;
    vertical-align: middle;
    margin-left: 10px;
    letter-spacing: 0.03em;
    text-shadow: none;
}

/* Info grid for home page */
table.info{width:900px; margin: 0 auto 24px auto; border-collapse:collapse;}
td.info-label{font-weight:bold; color:#2c5f8a; padding:6px 16px 6px 0px; width:200px; vertical-align:top;}
td.info-value{padding:6px 0px 6px 0px; vertical-align:top;}

/* Speaker cards */
.speaker-card{margin:24px auto; padding:20px 24px; background:#ffffff; border-left:4px solid #2c5f8a; max-width:860px; box-shadow:0 1px 4px rgba(0,0,0,0.08);}
.speaker-card h3{margin:0 0 4px 0; color:#2c5f8a; font-size:1.3em;}
.speaker-card .affiliation{color:#1a6b4a; font-style:italic; margin-bottom:6px;}
.speaker-card .topic{margin:0;}
.speaker-card .featured-badge{display:inline-block; background:#1a6b4a; color:#fff; font-size:0.8em; padding:2px 8px; border-radius:3px; margin-left:8px; vertical-align:middle; font-style:normal;}

/* Status box */
.status-box{background:#f0f5f0; border:1px solid #c8ddc8; border-radius:4px; padding:16px 24px; margin:16px auto; max-width:860px;}
.status-box p{margin:6px auto; width:auto;}

/* Programme day header */
.day-header{background:#2c5f8a; color:#fff; padding:10px 16px; margin:32px 0 0 0; font-family:"Roboto Slab",serif; font-size:1.3em;}

/* Mobile responsiveness */
@media only screen and (max-width: 1100px) {
    body { width: 100%; padding: 0 0 40px 0; }
    .hero { width: 100%; height: 220px; }
    .hero-title { font-size: 1.65em; }
    .hero-sub { font-size: 0.95em; }
    table.navigation { width: 100%; position: relative; }
    td.navigation { font-size: 1.05em; padding: 10px 6px; }
    table { width: 100%; }
    h2 { font-size: 2.2em; }
    p { font-size: 1.1em; line-height: 1.6em; width: 90%; }
    ul { width: 88%; }
    td.info-label { font-size: 1em; }
    td.info-value { font-size: 1em; }
    .speaker-card { margin: 16px 4%; }
    td.date { font-size: 0.9em; padding-top: 0.5em; }
    th,td,tr { font-size: 1em; line-height: 1.5em; }
}