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

:root {
  --bg: #0a0a0a;
  --bg-2: #111111;
  --bg-3: #161616;
  --bg-4: #1a1a1a;
  --bg-hover: #1e1e1e;
  --border: #2a2a2a;
  --border-strong: #3a3a3a;
  --text: #ffffff;
  --text-2: #999999;
  --text-3: #666666;
  --text-muted: #444444;
  --danger: #ff4444;
  --success: #44ff88;
  --radius: 10px;
  --radius-sm: 6px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Hero */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 100px 24px 60px;
  text-align: center;
}

.logo-mark {
  margin-bottom: 24px;
  opacity: 0.95;
}

.app-name {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.tagline {
  font-size: 15px;
  color: var(--text-3);
  margin-bottom: 36px;
}

.download-btn {
  margin-bottom: 16px;
}

/* Verify hash */
.verify-hash {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.verify-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--text-3);
  font-size: 12px;
  font-family: var(--font);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.15s;
}

.verify-toggle:hover { color: var(--text-2); }

.verify-details {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  max-width: 420px;
  width: 100%;
}

.hash-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.hash-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.hash-value {
  font-size: 11px;
  color: var(--text-2);
  word-break: break-all;
  flex: 1;
  background: none;
  padding: 0;
}

.hash-copy {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  flex-shrink: 0;
  transition: color 0.15s;
}

.hash-copy:hover { color: var(--text-2); }

.vt-result {
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.vt-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
}

.vt-status.clean { color: var(--success); }
.vt-status.flagged { color: #ff8844; }
.vt-status.danger { color: var(--danger); }
.vt-status.pending { color: var(--text-3); }

.verify-vt-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-3);
  text-decoration: none;
  transition: color 0.15s;
}

.verify-vt-link:hover { color: var(--text-2); }

.platforms {
  display: flex;
  align-items: center;
  gap: 16px;
}

.platform-icon {
  color: var(--text-muted);
  transition: color 0.15s;
}

.platform-icon.active {
  color: var(--text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 40px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
}

.btn-primary:hover { opacity: 0.9; }

.btn-secondary {
  background: var(--bg-4);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.btn-danger {
  background: rgba(255, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(255, 68, 68, 0.2);
}

.btn-danger:hover { background: rgba(255, 68, 68, 0.15); }

.btn-full { width: 100%; }

.btn-google {
  width: 100%;
  padding: 12px;
  background: var(--bg-4);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font);
  transition: all 0.15s;
}

.btn-google:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

/* Divider */
.divider {
  width: 60px;
  height: 1px;
  background: var(--border);
  margin: 0 auto;
}

/* Account */
.account {
  padding: 60px 24px 40px;
  width: 100%;
  display: flex;
  justify-content: center;
}

.account-container {
  width: 100%;
  max-width: 400px;
}

.auth-box {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.auth-title {
  font-size: 20px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 24px;
}

.auth-tabs {
  display: flex;
  gap: 2px;
  background: var(--bg-4);
  border-radius: var(--radius-sm);
  padding: 2px;
  margin-bottom: 24px;
}

.auth-tab {
  flex: 1;
  padding: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  background: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}

.auth-tab:hover { color: var(--text-2); }

.auth-tab.active {
  background: var(--bg-3);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-field label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: 0.02em;
}

.form-field input {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
}

.form-field input:focus { border-color: var(--border-strong); }
.form-field input::placeholder { color: var(--text-muted); }

.form-error {
  padding: 8px 12px;
  background: rgba(255, 68, 68, 0.1);
  border: 1px solid rgba(255, 68, 68, 0.2);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 13px;
  display: none;
}

.form-error.visible { display: block; }

.form-success {
  padding: 8px 12px;
  background: rgba(68, 255, 136, 0.1);
  border: 1px solid rgba(68, 255, 136, 0.2);
  border-radius: var(--radius-sm);
  color: var(--success);
  font-size: 13px;
  display: none;
}

.form-success.visible { display: block; }

.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
}

.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-divider span {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Profile */
.profile-info {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}

.profile-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-2);
  overflow: hidden;
  flex-shrink: 0;
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-name {
  font-size: 16px;
  font-weight: 600;
}

.profile-email {
  font-size: 13px;
  color: var(--text-3);
}

.profile-plan {
  display: inline-block;
  margin-top: 4px;
  padding: 2px 10px;
  background: rgba(255,255,255,0.06);
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-2);
  text-transform: capitalize;
}

.profile-section {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-bottom: 24px;
}

.profile-section h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 32px 24px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

/* Desktop auth mode — opened from Electron app */
.desktop-auth-mode .hero,
.desktop-auth-mode .divider { display: none; }
.desktop-auth-mode .account { padding-top: 60px; }
.desktop-auth-mode .auth-title::after {
  content: 'Sign in to connect your Studio Black app';
  display: block;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-2);
  margin-top: 8px;
}

/* Responsive */
@media (max-width: 480px) {
  .hero { padding: 72px 20px 48px; }
  .auth-box { padding: 24px; }
}