:root {
    --bg-body: #0f0f0f;
    --bg-card: #181818;
    --bg-hover: #202020;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --border-subtle: rgba(255, 255, 255, 0.08);

    --accent-color: #1DA1F2;
    --accent-gradient: linear-gradient(90deg, #1DA1F2, #00d2ff);
    --shadow-soft: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

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

body {
  background-color: var(--bg-body);
  color: var(--text-main);
  font-family: 'IBM Plex Sans', 'IBM Plex Sans Fallback', sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  flex-grow: 1;
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

#logo {
  margin-bottom: 15px;
}

#logo img {
  width: 200px;
  height: auto;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  filter: drop-shadow(0 4px 10px rgba(0,0,0,0.3));
}

#logo img:hover {
  transform: scale(1.05);
}

#username {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.verified-icon {
  width: 18px;
  height: 18px;
  fill: var(--accent-color);
  transition: all 0.3s ease;
}

.verified-icon:hover {
  fill: #00d2ff;
  transform: scale(1.1);
  filter: drop-shadow(0 0 8px rgba(29, 161, 242, 0.5));
}

#description {
  text-align: center;
  font-size: 16px;
  font-weight: 400;
  max-width: 600px;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 30px;
}

section {
  width: 100%;
  margin: 40px 0;
  padding: 35px;
  background-color: var(--bg-card);
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-align: justify;
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0.8;
}

section:hover {
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.15);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
}

h2 {
  color: var(--text-main);
  margin-bottom: 25px;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
  text-align: center;
  background: linear-gradient(to right, #fff, #aaa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h3 {
  color: var(--text-main);
  margin-bottom: 18px;
  font-size: 24px;
  font-weight: 600;
}

p, li {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 16px;
  font-weight: 400;
  margin-bottom: 12px;
}

ul {
  padding-left: 25px;
}

li {
  margin-bottom: 10px;
  list-style-type: disc;
}
li::marker {
    color: var(--accent-color);
}

.links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  width: 100%;
  max-width: 400px;
  margin-top: 30px;
}

.link-button {
  position: relative;
  width: 100%;
  padding: 14px;

  background: linear-gradient(145deg, #252525, #1a1a1a);
  color: var(--text-main);
  border: 1px solid #333;
  border-radius: 50px; 
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.link-button:hover {
  background: #333;
  border-color: var(--accent-color); 
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
  color: #fff;
}

.link-button:active {
  transform: translateY(-1px);
}

.link-button.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(100%);
}

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

.link-icon {
  width: 18px;
  height: 18px;
  margin-left: 10px; 
  filter: invert(1);
}

.toast {
  background-color: #222;
  color: var(--text-main);
  padding: 15px 20px;
  border-radius: 8px;
  margin: 10px auto;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  border-left: 3px solid var(--accent-color);
  display: block;
  font-size: 14px;
  text-align: justify;
  hyphens: auto;
  word-wrap: break-word;
  animation: fadeIn 0.5s ease;
  width: 100%;
}

.foot-txt {
  font-size: 10px;
  text-align: center;
  color: #666;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.toast .close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  background: none;
  border: none;
  color: #666;
  font-size: 18px;
  cursor: pointer;
  transition: color 0.3s ease;
}

.toast .close-btn:hover {
  color: #ff5252;
}

.toast.hidden {
  display: none;
}

footer {
  text-align: center;
  padding: 30px;
  font-size: 14px;
  color: #666;
  border-top: 1px solid var(--border-subtle);
  background-color: #0a0a0a;
  margin-top: auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 1024px) {
  .container {
    padding: 20px;
    max-width: 100%;
  }
  section {
    margin: 30px 0;
    padding: 25px;
  }
  h2 { font-size: 28px; }
  h3 { font-size: 22px; }
  p, li { font-size: 15px; }
}

@media (max-width: 768px) {
  .container { padding: 15px; }
  #logo img { width: 180px; }
  #username { font-size: 16px; margin-bottom: 10px; }
  .verified-icon { width: 16px; height: 16px; }
  #description { font-size: 15px; max-width: 100%; margin-bottom: 25px; }

  section {
    margin: 25px 0;
    padding: 20px;
    border-radius: 12px;
  }
  h2 { font-size: 24px; }
  h3 { font-size: 20px; }
  p, li { font-size: 14px; }

  .links { max-width: 100%; gap: 12px; }
  .link-button { padding: 12px 18px; font-size: 14px; }

  .toast {
    padding: 12px 15px;
    margin: 15px 0;
    font-size: 13px;
  }
  footer { padding: 20px; font-size: 13px; }
}

@media (max-width: 480px) {
  .container { padding: 10px; }
  #logo img { width: 140px; }
  #username { font-size: 15px; }

  section { margin: 20px 0; padding: 15px; }
  h2 { font-size: 20px; }
  h3 { font-size: 16px; }
  p, li { font-size: 13px; }

  .link-button { padding: 12px; font-size: 13px; }
  .toast { padding: 10px 15px; font-size: 12px; }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.link-button:focus-visible,
.close-btn:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}