:root {
    --lava-orange: #fe674c;
    --lava-orange-light: #fe674c;
    --lava-orange-dark: #821f11;
    --lava-brown: #3d0c09;
    --lava-navy: #100e28;
    --lava-navy-light: #212056;
    --lava-navy-dark: #0e1037;
    --lava-bg: var(--lava-navy);
    --lava-surface: var(--lava-navy-light);
    --lava-text: #e6e3f0;
    --lava-violet: #332e6b;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--lava-bg);
    color: var(--lava-text);
}

p {
    text-align: justify;
}

header {
    background: linear-gradient(90deg, var(--lava-orange-dark), var(--lava-orange-light));
    padding: 90px 20px 40px;
    text-align: center;
    position: relative;
}

#logo-lava {
    display: block;
    margin: 0 auto 15px;
    max-width: 320px;
    width: 100%;
    height: auto;
    padding: 10px 20px;
    border-radius: 10px;
}

header h1 {
    margin: 0;
    font-size: 3em;
    color: white;
}

header p {
    font-size: 1.2em;
    color: #fff8f0;
}

header h3 {
    color: white;
}

nav {
    background-color: var(--lava-brown);
    padding: 10px;
    text-align: center;
}

nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: var(--lava-orange-light);
    text-decoration: underline;
}

main {
    max-width: 1000px;
    margin: 40px auto;
    padding: 20px;
}

section {
    margin-bottom: 50px;
}

.scenario-content {
    text-align: justify;
}

h2 {
    color: var(--lava-orange);
}

.btn {
    background-color: var(--lava-orange);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    margin-top: 15px;
}

.btn:hover {
    background-color: var(--lava-orange-dark);
}

footer p {
    text-align: center;
}

footer {
    background-color: var(--lava-surface);
    color: #b3aecb;
    text-align: center;
    padding: 30px;
    position: fixed;
    bottom: 0px;
    left: 0;
    right: 0;
    height: 30px;
    align-items: center; 
    justify-content: center;
}

#image-tilsor {
    width: 120px;
    height: 60px;
    display: block;
    position: absolute;
    top: 10px;
    left: 10px;
}

#link-tectonic {
    text-decoration: none;
    color: white;
    font-weight: bold;
    transition: color 0.3s;
}

#link-tectonic:hover {
    color: var(--lava-orange-light);
}

#languageSelector {
  padding: 8px 12px;
  border-radius: 5px;
  border: 1px solid var(--lava-surface);
  font-size: 16px;
  background-color: #fff;
  color: var(--lava-navy);
  cursor: pointer;
  outline: none;
  transition: all 0.3s ease;
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 14px;
}

.disabled-btn[aria-disabled="true"] {
  pointer-events: none;
  background-color: var(--lava-navy-light);
  color: rgb(173, 170, 170);
  cursor: not-allowed;
  padding: 12px 24px;
  border: none;
  border-radius: 4px;
  font-size: 1em;
  text-decoration: none;
  display: inline-block;
  margin-top: 15px;
}

.popup-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(11, 10, 29, 0.75);
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.popup-overlay.active {
    display: flex;
}

.popup-box {
    background-color: #ffffff;
    color: var(--lava-violet);
    border-radius: 10px;
    padding: 30px;
    max-width: 440px;
    width: 100%;
    text-align: left;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 20px;
}

.popup-image {
    display: block;
    max-width: 70px;
    width: 100%;
    height: auto;
    margin: 0;
    flex-shrink: 0;
}

.popup-text {
    flex: 1;
    text-align: center;
}

.popup-box p {
    font-size: 1.7em;
    margin: 0 0 25px;
    text-align: center;
}

.popup-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.popup-actions .btn,
.popup-actions .btn-secondary {
    margin-top: 0;
    font-size: 1.2em;
    padding: 14px 28px;
}

.btn-secondary {
    background-color: transparent;
    color: var(--lava-violet);
    border: 1px solid var(--lava-orange);
}

.btn-secondary:hover {
    background-color: var(--lava-orange-dark);
    color: white;
}

@media (max-width: 480px) {
    header {
        padding: 65px 15px 30px;
    }

    #image-tilsor {
        width: 80px;
        height: 40px;
        top: 8px;
        left: 8px;
    }

    #languageSelector {
        top: 8px;
        right: 8px;
        font-size: 12px;
        padding: 5px 8px;
    }

    #logo-lava {
        max-width: 220px;
    }
}