@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --bg-color: #0d0c0c;
  --card-bg: rgba(20, 19, 19, 0.6);
  --card-border: rgba(40, 38, 37, 0.7);
  --card-border-hover: rgba(80, 76, 74, 0.9);
  --text-color: #f3f1ef;
  --text-muted: #a39f9c;
  --accent-color: #ff4d79;
  --accent-hover: #ff7096;
  --accent-rgb: 255, 77, 121;
  --transition-speed: 0.3s;
}

body.theme-blat {
  --accent-color: #10b981;
  --accent-hover: #34d399;
  --accent-rgb: 16, 185, 129;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(var(--accent-rgb), 0.04) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(var(--accent-rgb), 0.04) 0%, transparent 40%);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-image var(--transition-speed) ease;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* Header & Nav */
.header {
  padding: 24px 20px;
  background: rgba(13, 12, 12, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: border-bottom-color var(--transition-speed) ease;
}

.header-inner {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 600px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.header h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header nav {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.header nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
}

.header nav a:hover {
  color: var(--text-color);
  text-decoration: none;
}

.header nav a.active {
  color: var(--accent-color);
  font-weight: 600;
}

/* App Switcher */
.switcher-container {
  display: inline-flex;
  background: rgba(30, 28, 27, 0.6);
  border: 1px solid var(--card-border);
  border-radius: 99px;
  padding: 4px;
  gap: 2px;
  margin-top: 8px;
  align-self: flex-start;
}

@media (min-width: 600px) {
  .switcher-container {
    margin-top: 0;
    align-self: center;
  }
}

.switcher-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 18px;
  border-radius: 99px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-speed) cubic-bezier(0.16, 1, 0.3, 1);
}

.switcher-btn:hover {
  color: var(--text-color);
}

.switcher-btn.active {
  background: var(--accent-color);
  color: #0d0c0c;
  box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.35);
}

/* Layout Container */
.container {
  flex: 1;
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 20px;
}

/* App Content Sections */
[data-app] {
  display: none;
}

[data-app].active-app {
  display: block;
  animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(8px);
  transition: border-color var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.card:hover {
  border-color: var(--card-border-hover);
}

.card h2 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0 0 16px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
}

.card p:last-child {
  margin-bottom: 0;
}

.card ul {
  margin: 0 0 16px;
  padding-left: 20px;
  color: var(--text-muted);
}

.card ul li {
  margin-bottom: 8px;
  font-size: 15px;
}

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

.email-link {
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px dashed var(--accent-color);
  padding-bottom: 2px;
}

.email-link:hover {
  text-decoration: none;
  border-bottom-style: solid;
}

/* Footer */
.footer {
  text-align: center;
  padding: 32px 20px;
  color: var(--text-muted);
  border-top: 1px solid var(--card-border);
  margin-top: auto;
  font-size: 14px;
  transition: border-top-color var(--transition-speed) ease;
}

/* Styled Lists for Links */
.links-list {
  list-style: none;
  padding: 0 !important;
}

.links-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.links-list li::before {
  content: "→";
  color: var(--accent-color);
  font-weight: bold;
  transition: color var(--transition-speed) ease;
}