/* Design System & Variables */
:root {
  --bg-color: #0f1115; /* Dark background */
  --bg-pattern: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><circle cx="2" cy="2" r="1" fill="%23222" /></svg>');
  
  --text-primary: #f8f9fa;
  --text-secondary: #adb5bd;
  
  --accent-blue: #3eb0f9;
  --accent-orange: #ff6b35;
  --accent-green: #00e676;
  --accent-purple: #9c27b0;
  
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-hover: rgba(255, 255, 255, 0.08);

  --font-main: 'Inter', sans-serif;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  background-image: var(--bg-pattern);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  justify-content: center;
}

.app-container {
  max-width: 600px;
  width: 100%;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* Profile Header */
.profile-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1.5rem;
  animation: fadeInDown 0.8s ease-out;
}

.avatar-container {
  position: relative;
}

.avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--glass-bg);
  box-shadow: 0 0 20px rgba(62, 176, 249, 0.3);
  transition: var(--transition);
}

.avatar:hover {
  transform: scale(1.05);
  border-color: var(--accent-blue);
}

.profile-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 0.25rem;
}

.profile-name {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.profile-handle {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-blue);
}

.social-icons {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}

.social-link {
  color: var(--text-secondary);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}

.social-link:hover {
  color: var(--text-primary);
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(62, 176, 249, 0.4);
}

/* Stats Section */
.stats-container {
  display: flex;
  justify-content: space-between;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-blue);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 0.2rem;
}

/* Bio */
.bio {
  text-align: left;
  font-size: 1.05rem;
  color: var(--text-secondary);
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

/* Sections */
h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1.2rem;
}

.links-section, .newsletter-section, .contact-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* Link Cards */
.link-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.5rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: var(--transition);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.link-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: transparent;
  transition: var(--transition);
}

.link-card.accent-blue::before { background: var(--accent-blue); }
.link-card.accent-orange::before { background: var(--accent-orange); }
.link-card.accent-green::before { background: var(--accent-green); }
.link-card.accent-purple::before { background: var(--accent-purple); }

.link-card:hover {
  transform: translateY(-4px);
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.link-card.accent-blue:hover { box-shadow: 0 10px 25px rgba(62, 176, 249, 0.2); }
.link-card.accent-orange:hover { box-shadow: 0 10px 25px rgba(255, 107, 53, 0.2); }
.link-card.accent-green:hover { box-shadow: 0 10px 25px rgba(0, 230, 118, 0.2); }
.link-card.accent-purple:hover { box-shadow: 0 10px 25px rgba(156, 39, 176, 0.2); }

.link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.link-card.accent-blue .link-icon { color: var(--accent-blue); }
.link-card.accent-orange .link-icon { color: var(--accent-orange); }
.link-card.accent-green .link-icon { color: var(--accent-green); }
.link-card.accent-purple .link-icon { color: var(--accent-purple); }

.link-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.link-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Outline Card */
.link-card.outline {
  background: transparent;
  border: 1px dashed var(--glass-border);
}
.link-card.outline:hover {
  border-style: solid;
  border-color: var(--text-secondary);
  background: var(--glass-bg);
}

/* Newsletter */
.newsletter-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.newsletter-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.newsletter-form {
  display: flex;
  gap: 0.5rem;
}

.newsletter-form input {
  flex: 1;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.newsletter-form input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px rgba(62, 176, 249, 0.2);
}

.newsletter-form button {
  background: var(--accent-blue);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.8rem 1.2rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

.newsletter-form button:hover {
  background: #2a9df4;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(62, 176, 249, 0.3);
}

/* Footer */
.app-footer {
  text-align: center;
  padding: 2rem 0 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  animation: fadeInUp 0.8s ease-out 0.5s both;
}

/* Animations */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 480px) {
  .newsletter-form {
    flex-direction: column;
  }
  .newsletter-form button {
    width: 100%;
  }
}