/* ==========================================================================
   MODERN GLASSMORPHISM DESIGN SYSTEM - LINKTREE PROFILE
   ========================================================================== */

:root {
  /* Dark Theme Tokens (Default) */
  --bg-base: #0a0d14;
  --bg-gradient: radial-gradient(circle at 50% 0%, #171e2e 0%, #0a0d14 75%);
  --ambient-orb-1: radial-gradient(circle, rgba(99, 102, 241, 0.22) 0%, transparent 70%);
  --ambient-orb-2: radial-gradient(circle, rgba(236, 72, 153, 0.18) 0%, transparent 70%);
  --ambient-orb-3: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);

  --card-bg: rgba(255, 255, 255, 0.035);
  --card-bg-hover: rgba(255, 255, 255, 0.075);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(255, 255, 255, 0.22);
  --card-highlight: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.02) 100%);
  
  --glass-blur: blur(20px);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --card-shadow-hover: 0 12px 40px -8px rgba(0, 0, 0, 0.5), 0 0 20px -2px var(--card-accent, rgba(99, 102, 241, 0.25));

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  --accent-primary: #38bdf8;
  --status-active: #10b981;
  --status-glow: rgba(16, 185, 129, 0.4);

  --btn-pill-bg: rgba(255, 255, 255, 0.07);
  --btn-pill-border: rgba(255, 255, 255, 0.12);
  --btn-pill-hover: rgba(255, 255, 255, 0.16);

  --toast-bg: rgba(15, 23, 42, 0.9);
  --toast-border: rgba(255, 255, 255, 0.15);
  --toast-text: #f8fafc;

  --modal-overlay: rgba(0, 0, 0, 0.75);
  --transition-speed: 0.25s;
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --radius-card: 18px;
  --radius-pill: 9999px;
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-base: #f1f5f9;
  --bg-gradient: radial-gradient(circle at 50% 0%, #e2e8f0 0%, #f8fafc 100%);
  --ambient-orb-1: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  --ambient-orb-2: radial-gradient(circle, rgba(236, 72, 153, 0.12) 0%, transparent 70%);
  --ambient-orb-3: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);

  --card-bg: rgba(255, 255, 255, 0.72);
  --card-bg-hover: rgba(255, 255, 255, 0.92);
  --card-border: rgba(0, 0, 0, 0.07);
  --card-border-hover: rgba(0, 0, 0, 0.15);
  --card-highlight: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.3) 100%);

  --glass-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.06), 0 2px 8px -1px rgba(0, 0, 0, 0.03);
  --card-shadow-hover: 0 16px 36px -8px rgba(0, 0, 0, 0.12), 0 0 16px -2px var(--card-accent, rgba(99, 102, 241, 0.2));

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --accent-primary: #0284c7;
  --btn-pill-bg: rgba(0, 0, 0, 0.04);
  --btn-pill-border: rgba(0, 0, 0, 0.08);
  --btn-pill-hover: rgba(0, 0, 0, 0.08);

  --toast-bg: rgba(255, 255, 255, 0.95);
  --toast-border: rgba(0, 0, 0, 0.1);
  --toast-text: #0f172a;

  --modal-overlay: rgba(15, 23, 42, 0.45);
}

/* ==========================================================================
   BASE & RESET
   ========================================================================== */

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

html {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color-scheme: dark light;
}

body {
  min-height: 100vh;
  background-color: var(--bg-base);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.5;
  position: relative;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

/* Accessible focus ring */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ==========================================================================
   AMBIENT GLOW BACKGROUND ORBS
   ========================================================================== */

.ambient-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  will-change: transform;
}

.orb-1 {
  width: 500px;
  height: 500px;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ambient-orb-1);
  animation: floatOrb 18s ease-in-out infinite alternate;
}

.orb-2 {
  width: 400px;
  height: 400px;
  top: 40%;
  left: 10%;
  background: var(--ambient-orb-2);
  animation: floatOrb 22s ease-in-out infinite alternate-reverse;
}

.orb-3 {
  width: 380px;
  height: 380px;
  bottom: 5%;
  right: 15%;
  background: var(--ambient-orb-3);
  animation: floatOrb 20s ease-in-out infinite alternate;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, 40px) scale(1.08); }
  100% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ==========================================================================
   LAYOUT CONTAINER
   ========================================================================== */

.app-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 580px;
  min-height: 100vh;
  padding: 2.25rem 1.25rem 3rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ==========================================================================
   TOP BAR (Share + Theme Toggle)
   ========================================================================== */

.top-nav {
  width: 100%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.icon-btn {
  background: var(--btn-pill-bg);
  border: 1px solid var(--btn-pill-border);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-speed) var(--ease-smooth);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.icon-btn:hover {
  background: var(--btn-pill-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.icon-btn svg, .icon-btn img {
  width: 19px;
  height: 19px;
  transition: transform var(--transition-speed) ease;
}

/* ==========================================================================
   HERO / PROFILE HEADER SECTION
   ========================================================================== */

.profile-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 2.5rem;
  width: 100%;
}

/* Avatar Container with Glass Rim */
.avatar-wrapper {
  position: relative;
  width: 112px;
  height: 112px;
  margin-bottom: 1.25rem;
  cursor: pointer;
}

.avatar-wrapper::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.7) 0%, rgba(168, 85, 247, 0.7) 50%, rgba(236, 72, 153, 0.7) 100%);
  z-index: 0;
  opacity: 0.75;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.avatar-wrapper:hover::after {
  opacity: 1;
  transform: scale(1.05);
}

.avatar-img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: transform 0.4s var(--ease-smooth);
}

.avatar-wrapper:hover .avatar-img {
  transform: scale(1.03) rotate(1deg);
}

/* Online / Available Status Beacon */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--btn-pill-bg);
  border: 1px solid var(--btn-pill-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1rem;
  transition: all var(--transition-speed) ease;
}

.status-dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--status-active);
  box-shadow: 0 0 10px var(--status-glow);
}

.status-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--status-active);
  animation: radarPing 2s cubic-bezier(0, 0, 0.2, 1) infinite;
  opacity: 0.75;
}

@keyframes radarPing {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* Identity Typography */
.profile-name {
  font-size: clamp(1.5rem, 4vw, 1.875rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.profile-handle {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.profile-bio {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 440px;
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.profile-location {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   LINKS CONTAINER & GLASS CARDS
   ========================================================================== */

.links-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  list-style: none;
}

/* Frosted Glass Link Card */
.link-card {
  position: relative;
  width: 100%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-speed) var(--ease-smooth);
}

/* Highlight shimmer pseudo element */
.link-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  background: var(--card-highlight);
  pointer-events: none;
  opacity: 0.6;
}

/* Ambient bottom accent bar */
.link-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--card-accent, transparent);
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
}

/* Card Hover States */
.link-card:hover {
  background: var(--card-bg-hover);
  border-color: var(--card-border-hover);
  transform: translateY(-3px) scale(1.008);
  box-shadow: var(--card-shadow-hover);
}

.link-card:hover::after {
  opacity: 1;
}

.link-card:active {
  transform: translateY(-1px) scale(0.995);
}

/* Card Content Anatomy */
.card-left {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0; /* Enables text truncation */
}

/* Brand Icon Tile with Ambient Glow */
.card-icon-box {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-speed) var(--ease-smooth);
}

[data-theme="light"] .card-icon-box {
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.link-card:hover .card-icon-box {
  transform: scale(1.08) rotate(-3deg);
  background: rgba(255, 255, 255, 0.09);
}

.card-icon-box img,
.card-icon-box svg {
  width: 24px;
  height: 24px;
  display: block;
}

.card-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.01em;
}

.card-subtitle {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 0.125rem;
}

/* Card Right Action Pills */
.card-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.action-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--btn-pill-bg);
  border: 1px solid var(--btn-pill-border);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
  transition: all var(--transition-speed) ease;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.link-card:hover .action-badge {
  color: var(--text-primary);
  border-color: var(--card-border-hover);
  background: var(--btn-pill-hover);
}

.action-btn-copy {
  background: var(--btn-pill-bg);
  border: 1px solid var(--btn-pill-border);
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  z-index: 2;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: auto;
  transition: all var(--transition-speed) ease;
}

.action-btn-copy img,
.action-btn-copy svg {
  pointer-events: none;
}

.action-btn-copy:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.action-icon {
  width: 18px;
  height: 18px;
  opacity: 0.7;
  transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.link-card:hover .action-icon {
  opacity: 1;
  transform: translate(2px, -2px);
}



/* ==========================================================================
   TOAST NOTIFICATION COMPONENT
   ========================================================================== */

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

.toast {
  background: var(--toast-bg);
  border: 1px solid var(--toast-border);
  color: var(--toast-text);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  opacity: 0;
  transform: translateY(16px) scale(0.95);
  transition: all 0.3s var(--ease-smooth);
}

.toast.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.toast-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ==========================================================================
   SHARE MODAL DIALOG
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--modal-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border-hover);
  border-radius: 24px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
  width: 100%;
  max-width: 400px;
  padding: 1.75rem;
  text-align: center;
  transform: scale(0.92);
  transition: transform 0.3s var(--ease-smooth);
}

.modal-backdrop.open .modal-card {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
  transition: color var(--transition-speed) ease;
}

.modal-close:hover {
  color: var(--text-primary);
}

.qr-code-box {
  background: #ffffff;
  padding: 1rem;
  border-radius: 16px;
  display: inline-block;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.qr-code-box svg,
.qr-code-box img {
  display: block;
  width: 140px;
  height: 140px;
  margin: 0 auto;
}

.share-input-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.share-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.65rem 0.85rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  outline: none;
  font-family: inherit;
}

[data-theme="light"] .share-input {
  background: rgba(0, 0, 0, 0.04);
}

.share-copy-btn {
  background: var(--accent-primary);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  padding: 0.65rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition-speed) ease;
}

.share-copy-btn:hover {
  opacity: 0.9;
}

/* ==========================================================================
   ANIMATIONS & ACCESSIBILITY
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}