/* ===========================
   ZPN.me — Premium URL Shortener
   Design System & Styles
=========================== */

/* --- CSS Variables --- */
:root {
  --color-bg: #08090f;
  --color-surface: #0f1117;
  --color-surface-2: #161822;
  --color-border: rgba(255,255,255,0.07);
  --color-border-hover: rgba(255,255,255,0.14);

  --color-primary: #6c63ff;
  --color-primary-light: #8b84ff;
  --color-primary-dark: #5248d6;
  --color-primary-glow: rgba(108,99,255,0.25);

  --color-accent: #ff6584;
  --color-accent-2: #43e3c4;
  --color-accent-3: #f6c90e;

  --color-text-primary: #f0f0f8;
  --color-text-secondary: #9395a5;
  --color-text-muted: #4a4c60;

  --color-success: #43e3a4;
  --color-error: #ff5e7e;
  --color-warning: #f6c90e;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(108,99,255,0.2);

  --transition-fast: 0.15s cubic-bezier(0.4,0,0.2,1);
  --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
  --transition-bounce: 0.4s cubic-bezier(0.34,1.56,0.64,1);

  --font-body: 'Inter', system-ui, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) transparent;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: var(--radius-full); }

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; font-family: inherit; }

/* --- Animated Background --- */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #6c63ff, #3b2fa0);
  top: -200px; left: -150px;
  animation-delay: 0s;
}

.orb-2 {
  width: 450px; height: 450px;
  background: radial-gradient(circle, #ff6584, #c2185b);
  top: 50%; right: -150px;
  animation-delay: -4s;
}

.orb-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, #43e3c4, #00897b);
  bottom: 0; left: 40%;
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 30px) scale(0.97); }
}

.particles {
  position: absolute;
  inset: 0;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(8,9,15,0.7);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-smooth);
}

.navbar.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  transition: opacity var(--transition-fast);
}

.logo:hover { opacity: 0.85; }

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-sm);
  color: white;
  box-shadow: 0 4px 16px var(--color-primary-glow);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.logo-accent { color: var(--color-primary-light); }

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

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: rgba(255,255,255,0.06);
}

.nav-cta {
  padding: 9px 20px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: white;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 16px var(--color-primary-glow);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(108,99,255,0.4);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  background: none;
}

.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text-secondary);
  border-radius: 2px;
  transition: all var(--transition-smooth);
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 12px 24px 16px;
  border-top: 1px solid var(--color-border);
  gap: 4px;
}

.mobile-menu.open { display: flex; }

.mobile-link {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.mobile-link:hover {
  color: var(--color-text-primary);
  background: rgba(255,255,255,0.05);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
}

.hero-content {
  max-width: 780px;
  width: 100%;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(108,99,255,0.12);
  border: 1px solid rgba(108,99,255,0.3);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-primary-light);
  margin-bottom: 28px;
  animation: fadeSlideDown 0.7s ease both;
}

.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 8px var(--color-success);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  animation: fadeSlideDown 0.7s 0.1s ease both;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.7;
  animation: fadeSlideDown 0.7s 0.2s ease both;
}

.hero-subtitle strong {
  color: var(--color-primary-light);
  font-weight: 600;
}

/* --- Shortener Card --- */
.shortener-card {
  background: rgba(15,17,23,0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  animation: fadeSlideDown 0.7s 0.3s ease both;
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.shortener-card:hover {
  border-color: rgba(108,99,255,0.2);
  box-shadow: var(--shadow-lg), 0 0 60px rgba(108,99,255,0.15);
}

.card-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.input-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 14px;
  transition: all var(--transition-smooth);
}

.input-wrapper:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.input-icon {
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.input-wrapper:focus-within .input-icon {
  color: var(--color-primary);
}

.url-input {
  flex: 1;
  height: 54px;
  background: none;
  border: none;
  outline: none;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  caret-color: var(--color-primary);
}

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

.clear-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px; height: 24px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.clear-btn:hover { background: rgba(255,94,126,0.15); color: var(--color-error); }

.alias-wrapper {
  display: flex;
  align-items: center;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.alias-wrapper:focus-within {
  border-color: var(--color-accent-2);
  box-shadow: 0 0 0 3px rgba(67,227,196,0.15);
}

.alias-prefix {
  padding: 0 14px;
  height: 46px;
  display: flex;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent-2);
  background: rgba(67,227,196,0.06);
  border-right: 1px solid var(--color-border);
  white-space: nowrap;
  flex-shrink: 0;
}

.alias-input {
  flex: 1;
  height: 46px;
  background: none;
  border: none;
  outline: none;
  padding: 0 14px;
  font-size: 0.9rem;
  color: var(--color-text-primary);
  caret-color: var(--color-accent-2);
}

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

.shorten-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 54px;
  background: linear-gradient(135deg, var(--color-primary), #8b3dd8);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  color: white;
  letter-spacing: 0.01em;
  transition: all var(--transition-smooth);
  box-shadow: 0 8px 24px rgba(108,99,255,0.35);
  position: relative;
  overflow: hidden;
}

.shorten-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.shorten-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(108,99,255,0.5);
}

.shorten-btn:hover::before { opacity: 1; }

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

.btn-text { pointer-events: none; }
.btn-arrow { pointer-events: none; transition: transform var(--transition-smooth); }
.shorten-btn:hover .btn-arrow { transform: translateX(4px); }

.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Error Message --- */
.error-message {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255,94,126,0.1);
  border: 1px solid rgba(255,94,126,0.25);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--color-error);
  margin-top: 12px;
  animation: slideDown 0.3s ease;
}

.error-message.visible { display: flex; }

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Result Card --- */
.result-card {
  margin-top: 16px;
  background: rgba(67,227,196,0.05);
  border: 1px solid rgba(67,227,196,0.2);
  border-radius: var(--radius-lg);
  padding: 20px;
  animation: slideDown 0.4s var(--transition-bounce);
}

.result-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.result-success-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--color-success), #00c896);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #06150f;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(67,227,164,0.35);
}

.result-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-success);
}

.result-url-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.result-short-url {
  flex: 1;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary-light);
  word-break: break-all;
  transition: color var(--transition-fast);
  min-width: 0;
}

.result-short-url:hover { color: white; }

.result-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.action-btn:hover {
  background: rgba(255,255,255,0.1);
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
}

.copy-btn.copied {
  background: rgba(67,227,164,0.15);
  border-color: rgba(67,227,164,0.3);
  color: var(--color-success);
}

.original-url-preview {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 12px;
  padding: 0 2px;
}

.preview-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

.preview-url {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  word-break: break-all;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

/* --- Hero Stats --- */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-top: 40px;
  background: rgba(15,17,23,0.6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 20px 36px;
  backdrop-filter: blur(16px);
  animation: fadeSlideDown 0.7s 0.5s ease both;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
  margin: 0 24px;
}

/* --- Features Section --- */
.features-section {
  position: relative;
  z-index: 1;
  padding: 100px 24px;
}

.section-container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-badge {
  display: inline-block;
  padding: 5px 16px;
  background: rgba(108,99,255,0.1);
  border: 1px solid rgba(108,99,255,0.25);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--color-text-primary);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: rgba(15,17,23,0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.feature-card:hover {
  border-color: rgba(108,99,255,0.25);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md), 0 0 30px rgba(108,99,255,0.1);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(108,99,255,0.2), rgba(108,99,255,0.05));
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-light);
  margin-bottom: 18px;
  transition: all var(--transition-smooth);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, rgba(108,99,255,0.3), rgba(108,99,255,0.1));
  box-shadow: 0 4px 20px rgba(108,99,255,0.2);
}

.feature-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text-primary);
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* --- History Section --- */
.history-section {
  position: relative;
  z-index: 1;
  padding: 80px 24px 100px;
}

.history-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  background: rgba(15,17,23,0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 14px;
  color: var(--color-text-muted);
  transition: all var(--transition-smooth);
}

.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
  color: var(--color-text-primary);
}

.search-box input {
  flex: 1;
  height: 44px;
  background: none;
  border: none;
  outline: none;
  font-size: 0.9rem;
  color: var(--color-text-primary);
}

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

.clear-history-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 16px;
  height: 44px;
  background: rgba(255,94,126,0.08);
  border: 1px solid rgba(255,94,126,0.2);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-error);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.clear-history-btn:hover {
  background: rgba(255,94,126,0.15);
  border-color: rgba(255,94,126,0.4);
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 64px 24px;
  text-align: center;
}

.empty-icon {
  color: var(--color-text-muted);
  opacity: 0.4;
}

.history-empty p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* --- History Item --- */
.history-item {
  background: rgba(15,17,23,0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  transition: all var(--transition-smooth);
  backdrop-filter: blur(12px);
  animation: slideDown 0.3s ease;
}

.history-item:hover {
  border-color: var(--color-border-hover);
  background: rgba(20,22,32,0.9);
}

.history-item-main { min-width: 0; }

.history-short-url {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.history-short-link {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary-light);
  transition: color var(--transition-fast);
}

.history-short-link:hover { color: white; }

.history-click-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(246,201,14,0.1);
  border: 1px solid rgba(246,201,14,0.2);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent-3);
}

.history-original-url {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.history-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.history-item-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.history-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.history-action-btn:hover {
  background: rgba(255,255,255,0.08);
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
}

.history-action-btn.delete:hover {
  background: rgba(255,94,126,0.1);
  border-color: rgba(255,94,126,0.3);
  color: var(--color-error);
}

/* --- Modals --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 28px;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: scaleIn 0.3s var(--transition-bounce);
}

.modal-sm { max-width: 380px; }

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255,94,126,0.1);
  border-color: rgba(255,94,126,0.3);
  color: var(--color-error);
}

.qr-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: white;
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}

#qr-canvas { display: block; }

.qr-url-label {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  word-break: break-all;
  margin-bottom: 20px;
}

.download-qr-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 16px var(--color-primary-glow);
}

.download-qr-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(108,99,255,0.4);
}

.delete-confirm-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.btn-cancel {
  padding: 9px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.btn-cancel:hover { background: rgba(255,255,255,0.1); color: var(--color-text-primary); }

.btn-delete-confirm {
  padding: 9px 20px;
  background: linear-gradient(135deg, #ff5e7e, #c2185b);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 14px rgba(255,94,126,0.3);
}

.btn-delete-confirm:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255,94,126,0.45);
}

/* --- Toast Notifications --- */
.toast-container {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 18px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
  box-shadow: var(--shadow-md);
  min-width: 240px;
  max-width: 340px;
  pointer-events: all;
  animation: toastIn 0.4s var(--transition-bounce);
  backdrop-filter: blur(16px);
}

.toast.removing { animation: toastOut 0.3s ease forwards; }

.toast-icon {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 10px;
}

.toast.success .toast-icon { background: rgba(67,227,164,0.2); color: var(--color-success); }
.toast.error .toast-icon { background: rgba(255,94,126,0.2); color: var(--color-error); }
.toast.info .toast-icon { background: rgba(108,99,255,0.2); color: var(--color-primary-light); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(100%) scale(0.9); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0) scale(1); }
  to { opacity: 0; transform: translateX(100%) scale(0.9); }
}

/* --- Footer --- */
.footer {
  position: relative;
  z-index: 1;
  padding: 40px 24px;
  border-top: 1px solid var(--color-border);
  background: rgba(8,9,15,0.6);
  backdrop-filter: blur(12px);
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-tagline {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

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

/* --- Responsive --- */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 100px 16px 60px; }
  .hero-title { font-size: 2.4rem; }
  .hero-subtitle { font-size: 0.95rem; }

  .shortener-card { padding: 20px 16px; }
  .alias-prefix { font-size: 0.82rem; padding: 0 10px; }

  .hero-stats { flex-direction: column; gap: 16px; padding: 20px; }
  .stat-divider { width: 80px; height: 1px; margin: 0; }

  .features-grid { grid-template-columns: 1fr; }
  .features-section { padding: 60px 16px; }
  .history-section { padding: 60px 16px 80px; }

  .history-item { grid-template-columns: 1fr; }
  .history-item-actions { justify-content: flex-start; }

  .footer-container { flex-direction: column; text-align: center; }
  .history-toolbar { flex-direction: column; }
  .clear-history-btn { width: 100%; justify-content: center; }

  .toast-container { left: 16px; right: 16px; bottom: 16px; }
  .toast { min-width: unset; }
}

/* ═══ Disclaimer Modal & Legal Styles ═══ */
.disclaimer-overlay {
  z-index: 500;
  background: rgba(4,5,10,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.disclaimer-modal {
  max-width: 520px;
  border: 1px solid rgba(108,99,255,0.3);
  box-shadow: var(--shadow-lg), 0 0 60px rgba(108,99,255,0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.disclaimer-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(108,99,255,0.2), rgba(255,94,126,0.15));
  border: 1px solid rgba(108,99,255,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-light);
  margin-bottom: 16px;
}

.disclaimer-intro {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

.inline-link {
  background: none;
  border: none;
  color: var(--color-primary-light);
  text-decoration: underline;
  cursor: pointer;
  font-size: inherit;
  padding: 0;
  font-weight: 600;
}

.inline-link:hover { color: white; }

.disclaimer-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  text-align: left;
  margin-bottom: 20px;
  max-height: 240px;
  overflow-y: auto;
  padding-right: 4px;
}

.disclaimer-point {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.dp-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  line-height: 1;
}

.disclaimer-checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  font-size: 0.83rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  margin-bottom: 20px;
  user-select: none;
}

.disclaimer-checkbox-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.disclaimer-accept-btn {
  width: 100%;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 700;
  color: white;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 16px var(--color-primary-glow);
}

.disclaimer-accept-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.disclaimer-accept-btn:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(108,99,255,0.45);
}

/* ═══ Trust / Security Badges ═══ */
.trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.trust-badge:hover {
  border-color: rgba(108,99,255,0.3);
  color: var(--color-text-secondary);
}

/* ═══ Terms Modal ═══ */
.terms-modal {
  max-width: 680px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
}

.terms-body {
  overflow-y: auto;
  max-height: 55vh;
  padding-right: 8px;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.terms-updated {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  font-style: italic;
}

.terms-body h4 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  color: var(--color-text-primary);
  margin: 18px 0 8px 0;
}

.terms-body h4:first-of-type { margin-top: 0; }

.terms-body ul {
  padding-left: 20px;
  margin: 8px 0;
}

.terms-body li {
  margin-bottom: 6px;
}

.terms-footer {
  margin-top: 16px;
  display: flex;
  justify-content: flex-end;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

/* ═══ Footer Legal Additions ═══ */
.footer-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-link-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.82rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.footer-link-btn:hover { color: var(--color-primary-light); }

.footer-legal {
  font-size: 0.73rem;
  color: var(--color-text-muted);
  margin-top: 8px;
  line-height: 1.5;
  max-width: 800px;
  opacity: 0.7;
}