.qr-generator {
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.input-section {
  width: 100%;
  max-width: 800px;
  background: white;
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  margin-bottom: 2rem;
}

.title {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: 0.5rem;
}

.subtitle {
  text-align: center;
  color: #6b7280;
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.input-group {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.url-input {
  flex: 1;
  padding: 1rem 1.5rem;
  font-size: 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  transition: all 0.3s ease;
  outline: none;
}

.url-input:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.generate-btn {
  padding: 1rem 2rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}

.generate-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.generate-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error-message {
  background: #fee2e2;
  color: #dc2626;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.result-section {
  width: 100%;
  max-width: 800px;
  background: white;
  border-radius: 20px;
  padding: 3rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  animation: slideUp 0.5s ease;
}

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

.profile-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid #f3f4f6;
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #667eea;
}

.profile-details h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 0.25rem;
}

.profile-username {
  color: #6b7280;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.profile-link {
  color: #667eea;
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap 0.2s ease;
}

.profile-link:hover {
  gap: 0.5rem;
}

.qr-code-section {
  display: flex;
  justify-content: center;
  margin: 2rem 0;
  padding: 0;
}

.qr-code-wrapper {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.qr-code-container {
  background: white;
  padding: 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.profile-bar-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 3px solid white;
  object-fit: cover;
}

.profile-bar-info {
  flex: 1;
}

.profile-bar-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.25rem 0;
  color: white;
}

.profile-bar-username {
  font-size: 0.9rem;
  opacity: 0.9;
  margin: 0;
  color: white;
}

.profile-bar-details {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.resource-type-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: white;
  text-transform: capitalize;
}

.resource-name {
  font-size: 0.9rem;
  color: white;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.actions-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.download-actions h3,
.share-actions h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 1rem;
}

.button-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.download-btn {
  flex: 1;
  padding: 0.75rem 1.5rem;
  background: #6b7280;
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 120px;
}

.download-btn:hover {
  background: #4b5563;
  transform: translateY(-1px);
}

.download-btn.primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.download-btn.primary:hover {
  background: linear-gradient(135deg, #5a67d8 0%, #6b42a0 100%);
  transform: translateY(-1px);
}

.download-btn.secondary {
  background: #6b7280;
}

.download-btn.secondary:hover {
  background: #4b5563;
}

.share-btn {
  flex: 1;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  color: white;
  min-width: 100px;
  font-size: 0.9rem;
}

.share-btn.twitter {
  background: #1DA1F2;
}

.share-btn.twitter:hover {
  background: #1a91da;
}

.share-btn.facebook {
  background: #1877F2;
}

.share-btn.facebook:hover {
  background: #166fe5;
}

.share-btn.linkedin {
  background: #0A66C2;
}

.share-btn.linkedin:hover {
  background: #095196;
}

/* Responsive Design for All Devices */

/* Tablet - Large (iPad Pro) */
@media (max-width: 1024px) {
  .qr-generator {
    padding: 1.5rem;
  }

  .input-section,
  .result-section {
    max-width: 700px;
    padding: 2.5rem 2rem;
  }

  .title {
    font-size: 2.2rem;
  }

  .qr-phone-bg {
    width: 360px;
  }

  .qr-share-sheet {
    width: 360px;
  }
}

/* Tablet - Standard */
@media (max-width: 768px) {
  .qr-generator {
    padding: 1rem;
  }

  .input-section,
  .result-section {
    padding: 2rem 1.5rem;
    max-width: 100%;
  }

  .title {
    font-size: 1.8rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .input-group {
    flex-direction: column;
  }

  .url-input,
  .generate-btn {
    width: 100%;
  }

  .profile-info {
    flex-direction: column;
    text-align: center;
  }

  .qr-code-wrapper {
    width: 100%;
  }

  .profile-bar {
    padding: 1rem 1.5rem;
  }

  .profile-bar-avatar {
    width: 40px;
    height: 40px;
  }

  .profile-bar-name {
    font-size: 1rem;
  }

  .profile-bar-username {
    font-size: 0.85rem;
  }

  .resource-type-badge {
    font-size: 0.75rem;
    padding: 0.15rem 0.4rem;
  }

  .resource-name {
    font-size: 0.85rem;
    max-width: 150px;
  }

  .actions-section {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .button-group {
    flex-direction: column;
  }

  .download-btn,
  .share-btn {
    width: 100%;
  }

  .qr-phone-bg {
    width: 340px;
  }

  .qr-share-sheet {
    width: 340px;
  }
}

/* Mobile - Large (iPhone Plus/Max) */
@media (max-width: 414px) {
  .qr-generator {
    padding: 0.75rem;
  }

  .input-section,
  .result-section {
    padding: 1.5rem 1rem;
    border-radius: 16px;
  }

  .title {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.9rem;
  }

  .qr-phone-bg {
    width: 100%;
    max-width: 340px;
    padding: 30px 12px 12px;
  }

  .qr-card-v2 {
    padding: 45px 12px 16px;
  }

  .qr-share-sheet {
    width: 100%;
    max-width: 340px;
    padding: 10px 12px;
  }

  .hf-card {
    padding: 1.5rem;
  }
}

/* Mobile - Standard (iPhone, Android) */
@media (max-width: 375px) {
  .qr-phone-bg {
    width: 100%;
    max-width: 320px;
  }

  .qr-share-sheet {
    width: 100%;
    max-width: 320px;
  }

  .qr-avatar-wrap {
    width: 48px;
    height: 48px;
    top: -24px;
  }

  .qr-name {
    font-size: 0.95rem;
  }

  .qr-caption {
    font-size: 0.75rem;
  }
}

/* Mobile - Small */
@media (max-width: 320px) {
  .input-section,
  .result-section {
    padding: 1.25rem 0.75rem;
  }

  .title {
    font-size: 1.3rem;
  }

  .qr-phone-bg {
    width: 100%;
    padding: 25px 10px 10px;
  }

  .qr-card-v2 {
    padding: 40px 10px 14px;
  }

  .qr-share-sheet {
    width: 100%;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .qr-share-actions,
  .qr-download-actions {
    justify-content: center;
  }
}

/* ===== New UI (Screenshot-inspired) ===== */
.hf-card {
  width: 100%;
  max-width: 720px;
  background: #ffffff;
  border-radius: 20px;
  padding: 2.25rem;
  box-shadow: 0 14px 40px rgba(0,0,0,0.08);
  margin-bottom: 2rem;
}

.hf-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.hf-emoji {
  font-size: 2rem;
}

.hf-title-wrap { display:flex; flex-direction: column; }
.hf-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #111827;
}
.hf-subtitle { color:#6b7280; font-size: 0.95rem; }

.hf-form { display:flex; flex-direction: column; gap: 1rem; }
.hf-field { display:flex; flex-direction: column; gap: 0.4rem; }
.hf-label { font-size: 0.75rem; letter-spacing: .05em; color:#6b7280; font-weight: 700; }

.hf-input-wrap { position: relative; display:flex; align-items: center; }
.hf-input {
  width: 100%;
  padding: 0.9rem 2.75rem 0.9rem 1rem;
  border: 1.5px solid #e5e7eb;
  border-radius: 12px;
  font-size: 0.95rem;
}
.hf-input:focus { outline: none; border-color: #10b981; box-shadow: 0 0 0 3px rgba(16,185,129,.15); }
.hf-valid {
  position: absolute;
  right: 0.75rem;
  color: #10b981;
  opacity: 0;
  transition: opacity .2s ease;
  font-weight: 900;
}
.hf-valid.active { opacity: 1; }

.hf-select {
  width: 220px;
  padding: 0.7rem 0.85rem;
  border: 1.5px solid #e5e7eb;
  border-radius: 12px;
  font-size: 0.95rem;
  background: #fff;
}

.hf-cta {
  align-self: flex-start;
  margin-top: 0.25rem;
  padding: 0.85rem 1.25rem;
  border-radius: 9999px;
  border: none;
  background: #111827;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}
.hf-cta:disabled { opacity: .6; cursor: not-allowed; }

/* Download card layout (screenshot 2) */
.qr-preview { display:flex; flex-direction: column; align-items: center; justify-content:center; margin: 1.5rem 0 0.5rem; }
.qr-phone-bg {
  position: relative;
  width: 380px;
  max-width: 100%;
  height: auto;
  border-radius: 32px;
  background: linear-gradient(135deg,#f1c40f,#f39c12);
  padding: 40px 18px 18px;
  box-shadow: 0 12px 28px rgba(0,0,0,.15);
}

.qr-card-v2 {
  position: relative;
  background: #fff;
  border-radius: 22px;
  padding: 56px 18px 22px;
  box-shadow: 0 8px 18px rgba(0,0,0,.08);
}

.qr-avatar-wrap {
  position: absolute;
  top: -28px;
  left: 50%;
  transform: translateX(-50%);
  width: 56px; height: 56px;
  border-radius: 9999px;
  border: 3px solid #fff;
  overflow: hidden;
  box-shadow: 0 6px 12px rgba(0,0,0,.12);
}
.qr-avatar { width:100%; height:100%; object-fit: cover; }

.qr-card-inner { display:flex; flex-direction: column; align-items:center; gap: 12px; }
.qr-name { font-weight: 700; color:#111827; margin-top: -6px; }
.qr-code-holder { padding: 6px 0 2px; }
.qr-caption { color:#9ca3af; font-size: .8rem; text-align:center; }
.qr-brand { display:flex; align-items:center; gap:8px; color:#111827; font-weight:700; }
.qr-brand img { width:18px; height:18px; }
.qr-bg-help { text-align:center; color:#fef3c7; font-size: .78rem; margin-top: 10px; }

@media (max-width: 480px) {
  .qr-phone-bg { padding: 44px 14px 16px; border-radius: 28px; height: auto; }
  .qr-card-v2 { padding: 52px 14px 18px; border-radius: 20px; }
}

/* Top icons (back + menu) */
.qr-topbar {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255,255,255,0.95);
  padding: 8px;
}
.qr-topbar button { background: transparent; border: 0; color: inherit; padding: 8px; cursor: pointer; transition: opacity 0.2s; }
.qr-topbar button:hover { opacity: 0.7; }

/* Bottom share sheet */
.qr-share-sheet {
  position: relative;
  width: 380px;
  max-width: 100%;
  margin: 10px auto 0;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 -8px 24px rgba(0,0,0,.22);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 12px 16px;
  padding: 12px 16px 14px;
  font-family: var(--font-inter), var(--font-geist-sans), system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.qr-share-sheet .qr-close {
  position: absolute;
  right: 10px;
  top: 8px;
  border: 0;
  background: transparent;
  color: #111827;
  opacity: .7;
  font-size: 18px;
}

.qr-download-group { display:flex; flex-direction: column; gap: 8px; }
.qr-download-actions { display:flex; gap: 12px; }
.qr-download-item { display:flex; flex-direction: column; align-items: center; gap: 6px; }
.qr-action-text { font-size: 11px; color:#6b7280; }
.qr-circle {
  width: 36px; height: 36px; border-radius: 9999px; display:flex; align-items:center; justify-content:center;
  background: #f3f4f6; border: 1px solid #e5e7eb; color:#374151;
  cursor: pointer;
}
.qr-share-group { display:flex; flex-direction: column; gap: 8px; }
.qr-share-label { font-size: 12px; color:#6b7280; margin-left: 0; text-align: left; letter-spacing: .02em; font-weight: 600; }
.qr-share-actions { display:flex; gap: 14px; }

/* Color Picker */
.qr-color-picker {
  position: relative;
  width: 380px;
  max-width: 100%;
  margin: 12px auto 0;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 -8px 24px rgba(0,0,0,.22);
  padding: 16px;
  font-family: var(--font-inter), var(--font-geist-sans), system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  animation: slideUp 0.3s ease;
}

.qr-color-picker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.qr-color-picker-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: #111827;
  margin: 0;
}

.qr-color-close {
  background: transparent;
  border: none;
  font-size: 24px;
  color: #6b7280;
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
}

.qr-color-close:hover {
  color: #111827;
}

.qr-color-section {
  margin-bottom: 16px;
}

.qr-color-section:last-child {
  margin-bottom: 0;
}

.qr-color-section h4 {
  font-size: 13px;
  font-weight: 600;
  color: #6b7280;
  margin: 0 0 10px 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.qr-color-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.qr-color-swatch {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.qr-color-swatch:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.qr-color-swatch.active {
  border-color: #111827;
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px #111827;
}

.qr-color-swatch.active::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 18px;
  font-weight: bold;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}