/* ==========================================================================
   FrozdLinks - Modern Design System & Stylesheet
   ========================================================================== */

/* --- CSS Variables / Design Tokens --- */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Color Palette */
  --bg-base: #090c10;
  --bg-surface: rgba(17, 24, 39, 0.65);
  --bg-surface-hover: rgba(30, 41, 59, 0.8);
  --bg-surface-active: rgba(30, 41, 59, 0.95);
  --bg-surface-card: rgba(15, 23, 42, 0.6);
  --bg-surface-card-hover: rgba(22, 33, 58, 0.75);

  /* Accents & Brand */
  --accent-primary: #6366f1;
  --accent-primary-hover: #818cf8;
  --accent-secondary: #06b6d4;
  --accent-emerald: #10b981;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --accent-glow-strong: rgba(99, 102, 241, 0.45);

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(129, 140, 248, 0.35);
  --border-featured: rgba(99, 102, 241, 0.4);

  /* Text Hierarchy */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px var(--accent-glow);

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- Global Reset & Box Sizing --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.5;
  display: flex;
  justify-content: center;
  overflow-x: hidden;
  position: relative;
  padding: 2.5rem 1rem;
}

/* --- Ambient Background Mesh --- */
.ambient-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.4;
  animation: orb-float 18s ease-in-out infinite alternate;
}

.orb-1 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.45) 0%, rgba(99, 102, 241, 0) 70%);
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
}

.orb-2 {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.35) 0%, rgba(6, 182, 212, 0) 70%);
  bottom: 10%;
  right: -50px;
  animation-duration: 22s;
}

.orb-3 {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.3) 0%, rgba(168, 85, 247, 0) 70%);
  top: 40%;
  left: -80px;
  animation-duration: 25s;
}

@keyframes orb-float {
  0% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(20px, 30px) scale(1.08);
  }
  100% {
    transform: translate(-20px, -20px) scale(0.95);
  }
}

/* --- Application Container --- */
.app-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 620px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
}

/* --- Profile Card --- */
.profile-card {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg-surface-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md), 0 0 25px rgba(99, 102, 241, 0.08);
}

.profile-main {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
}

.avatar-container {
  position: relative;
  flex-shrink: 0;
  width: 92px;
  height: 92px;
}

.avatar-glow {
  position: absolute;
  inset: -3px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 50%;
  filter: blur(8px);
  opacity: 0.55;
  transition: opacity var(--transition-normal);
}

.avatar-container:hover .avatar-glow {
  opacity: 0.85;
}

.avatar-img {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 2.5px solid rgba(255, 255, 255, 0.15);
  background-color: #1a202c;
}

.profile-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex-grow: 1;
  min-width: 0;
}

.profile-heading {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.profile-name {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.profile-handle {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-primary-hover);
}

.profile-bio {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.profile-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.775rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
}

.time-pill {
  color: #a5f3fc;
  background: rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.25);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: -0.01em;
}

/* About Box */
.profile-about-box {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
}

.profile-about-text {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.skills-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: #c7d2fe;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

/* --- Quick Socials Bar --- */
.quick-socials-bar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding-top: 0.25rem;
}

.quick-social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.quick-social-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.quick-social-btn:active {
  transform: translateY(0) scale(0.96);
}

/* --- Controls Section (Search & Filter) --- */
.controls-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.search-box {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  height: 46px;
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0 4.25rem 0 2.75rem;
  font-family: var(--font-sans);
  font-size: 0.925rem;
  color: var(--text-primary);
  transition: all var(--transition-normal);
  outline: none;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  border-color: var(--accent-primary);
  background: var(--bg-surface-hover);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.search-clear-btn {
  position: absolute;
  right: 2.4rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem;
  border-radius: 50%;
  transition: color var(--transition-fast);
}

.search-clear-btn:hover {
  color: var(--text-primary);
}

.search-hint {
  position: absolute;
  right: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  pointer-events: none;
}

/* Category Filter Tabs */
.category-filters {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scrollbar-width: none;
}

.category-filters::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-normal);
}

.filter-chip:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
  border-color: rgba(255, 255, 255, 0.18);
}

.filter-chip.active {
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent-primary), #4f46e5);
  border-color: transparent;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.35);
}

/* --- Links Container & Cards --- */
.links-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.link-card {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.15rem;
  background: var(--bg-surface-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  text-align: left;
  transition: transform var(--transition-spring), background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  outline: none;
}

/* Entry Animation */
@starting-style {
  .link-card {
    opacity: 0;
    transform: translateY(10px);
  }
}

.link-card:hover {
  background: var(--bg-surface-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.15);
}

.link-card:active {
  transform: translateY(0) scale(0.99);
}

/* Featured Card Variant */
.link-card.featured {
  border-color: var(--border-featured);
  background: linear-gradient(135deg, rgba(24, 34, 60, 0.7) 0%, rgba(15, 23, 42, 0.6) 100%);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.12);
}

.link-card.featured:hover {
  border-color: var(--accent-primary-hover);
  box-shadow: var(--shadow-md), 0 0 25px rgba(99, 102, 241, 0.3);
}

/* Multi-Action Card Layout */
.link-card.multi-action-card {
  flex-direction: column;
  align-items: stretch;
  gap: 0.75rem;
  cursor: default;
}

.card-main-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
}

.card-actions-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 0.65rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  width: 100%;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  outline: none;
}

.action-btn-primary {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(79, 70, 229, 0.35));
  border-color: rgba(99, 102, 241, 0.4);
  color: #c7d2fe;
}

.action-btn-primary:hover {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.45), rgba(79, 70, 229, 0.6));
  border-color: var(--accent-primary-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.action-btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

.action-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.action-btn:active {
  transform: translateY(0) scale(0.97);
}

.action-btn.copied {
  background: rgba(16, 185, 129, 0.2) !important;
  border-color: var(--accent-emerald) !important;
  color: var(--accent-emerald) !important;
}

.action-btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Card Elements */
.card-icon-wrapper {
  position: relative;
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card-icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.card-icon-svg {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary-hover);
}

.card-icon-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.card-content {
  flex-grow: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-title {
  font-size: 1.025rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-badge {
  font-size: 0.7rem;
  font-weight: 600;
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.18);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 0.12rem 0.45rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.card-subtitle {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-description {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.35;
  margin-top: 0.15rem;
}

.card-action-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform var(--transition-normal), color var(--transition-normal);
  padding-left: 0.25rem;
}

.link-card:hover .card-action-icon {
  color: var(--text-primary);
  transform: translateX(3px);
}

.card-action-icon.copied {
  color: var(--accent-emerald);
}

/* Highlight matching search queries */
mark.highlight {
  background-color: rgba(99, 102, 241, 0.4);
  color: #ffffff;
  padding: 0 0.15rem;
  border-radius: 3px;
}

/* Empty Search / Filter State */
.empty-state {
  width: 100%;
  padding: 3rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
  gap: 0.75rem;
}

.empty-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.empty-state h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.empty-state p {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 320px;
}

.btn-secondary {
  margin-top: 0.5rem;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-surface-hover);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
}

/* --- Footer --- */
.app-footer {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding-bottom: 1.5rem;
}

.share-profile-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.share-profile-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.share-profile-btn:active {
  transform: translateY(0);
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-dot {
  opacity: 0.5;
}

.footer-note {
  font-family: var(--font-mono);
}

/* --- Toast Notification System --- */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.25rem;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 0, 0, 0.6);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  pointer-events: auto;
  animation: toast-enter 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast-icon {
  display: flex;
  align-items: center;
  color: var(--accent-primary-hover);
}

.toast-success .toast-icon {
  color: var(--accent-emerald);
}

.toast-fade-out {
  opacity: 0 !important;
  transform: translateY(10px) scale(0.95) !important;
  transition: opacity 0.25s ease, transform 0.25s ease !important;
  animation: none !important;
}

@keyframes toast-enter {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* --- Focus Rings & Keyboard Navigation --- */
:focus-visible {
  outline: 2px solid var(--accent-primary-hover);
  outline-offset: 3px;
}

/* --- Responsive Adjustments --- */
@media (max-width: 640px) {
  body {
    padding: 1.75rem 0.85rem;
  }

  .profile-card {
    padding: 1.25rem 1rem;
    gap: 1rem;
  }

  .profile-main {
    flex-direction: column;
    text-align: center;
    gap: 0.85rem;
  }

  .profile-heading {
    justify-content: center;
  }

  .profile-meta-row {
    justify-content: center;
  }

  .profile-about-text {
    text-align: center;
  }

  .skills-tags-row {
    justify-content: center;
  }

  .quick-socials-bar {
    justify-content: center;
  }

  .avatar-container {
    width: 84px;
    height: 84px;
  }

  .link-card {
    padding: 0.9rem 1rem;
    gap: 0.85rem;
  }

  .card-icon-wrapper {
    width: 42px;
    height: 42px;
  }

  .card-title {
    font-size: 0.975rem;
  }

  .card-description {
    font-size: 0.775rem;
  }

  .card-actions-toolbar {
    justify-content: flex-start;
  }

  .action-btn {
    flex-grow: 1;
    justify-content: center;
  }
}

/* --- Reduced Motion Preference --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .glow-orb {
    animation: none;
  }

  .status-dot {
    animation: none;
  }

  .link-card:hover {
    transform: none;
  }

  .action-btn:hover {
    transform: none;
  }
}