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

/* GLOBAL */
body {
    font-family: Georgia, serif;
    background: #f4f7fa;
    color: #111;
    line-height: 1.6;
    padding: 60px;
}

/* HEADER */
header {
    margin-bottom: 50px;
}

h1 {
    font-size: 2.8em;
    margin-bottom: 10px;
    font-weight: normal;
    border-bottom: 3px solid #003153;
    display: inline-block;
    padding-bottom: 5px;
}

/* NAVIGATION */
nav a {
    margin-right: 20px;
    text-decoration: none;
    color: #003153;
    font-size: 0.95em;
}

nav a:hover {
    color: #001a2b;
}

/* HERO SECTION */
.hero {
    margin-top: 40px;
    margin-bottom: 40px;
}

.tagline {
    font-size: 1.8em;
    max-width: 700px;
}

/* INTRO SECTION */
.intro p {
    max-width: 700px;
    font-size: 1.1em;
    margin-top: 20px;
}

/* FOOTER */
footer {
    margin-top: 80px;
    font-size: 0.85em;
    color: #003153;
}

/* GALLERY */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.gallery img {
    width: 100%;
    height: auto;
    border-radius: 4px; 
    border: 2px solid #00315310;
    box-shadow: 0 2px 6px #00315320; 
}

.credit {
    font-size: 0.85em;
    color: #003153;
    margin-top: 10px;
    font-style: italic;
} 

/* SOUND GALLERY */
.sound-gallery {
    max-width: 700px;
    margin: 40px auto;
}

.sound-item {
    margin-bottom: 30px;
}

.sound-item p {
    font-size: 1em;
    margin-bottom: 10px;
    color: #003153;
}

/* SOUND GALLERY */
.sound-gallery {
    max-width: 700px;
    margin: 40px auto;
}

.sound-item {
    margin-bottom: 30px;
}

.sound-item p {
    font-size: 1em;
    margin-bottom: 10px;
    color: #003153; 
}

.pulsas {
    max-width: 700px;
    margin: 40px auto;
}

.pulse-entry {
    margin-bottom: 40px;
}

.pulse-entry img {
    width: 100%;
    height: auto;
    border-radius: 6px;
    border: 2px solid #00315310; 
    box-shadow: 0 2px 6px #00315320;
}

.pulse-caption {
    margin-top: 10px;
    font-size: 1em;
    color: #003153;
    font-style: italic;
} 

/* CHAT */
.chat {
    max-width: 700px;
    margin: 40px auto;
}

#chat-window {
    background: #f4f7fa;
    border: 2px solid #00315320;
    padding: 20px;
    border-radius: 6px;
    min-height: 200px;
    margin-bottom: 20px;
}

#user-input {
    width: 70%;
    padding: 10px;
    border: 1px solid #00315340;
    border-radius: 4px;
}

#send-btn {
    padding: 10px 20px;
    background: #003153;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#send-btn:hover {
    background: #001a2b;
}