/* ========================================================
   Sparkling Shoe Laundry - Login Page Styles
   Pisah dari inline, reusable & maintainable
   ======================================================== */

/* ===== CSS VARIABLES ===== */
:root {
  --primary: #00d4ff;
  --primary-dark: #00a8cc;
  --primary-glow: rgba(0, 212, 255, 0.3);
  --bg-dark: #0a1628;
  --bg-card: rgba(16, 36, 64, 0.85);
  --bg-input: rgba(255, 255, 255, 0.05);
  --text-primary: #ffffff;
  --text-secondary: #8fa8c4;
  --text-muted: #5a7a9a;
  --border-color: rgba(0, 212, 255, 0.15);
  --border-focus: rgba(0, 212, 255, 0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* ===== RESET & BASE ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-dark);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  overflow-x: hidden;
}

/* Animated background particles */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ===== LOGIN CONTAINER ===== */
.login-container {
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
}

.login-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 40px 32px;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  animation: cardFadeIn 0.6s ease-out;
}

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

/* ===== LOGO ===== */
.login-logo {
  text-align: center;
  margin-bottom: 28px;
}

.login-logo img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(0, 212, 255, 0.3);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
  animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.login-brand {
  text-align: center;
  margin-bottom: 28px;
}

.login-brand h1 {
  color: var(--text-primary);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 1px;
}

.login-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 4px;
}

/* ===== TAB SWITCHER (Masuk / Daftar) ===== */
.tab-switcher {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 4px;
}

.tab-btn {
  flex: 1;
  padding: 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

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

.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

/* ===== FORM GROUPS ===== */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-label i {
  color: var(--primary);
  font-size: 12px;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.3s ease;
  outline: none;
}

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

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

.form-input.error {
  border-color: #ff4757;
  box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.15);
}

/* ===== PASSWORD TOGGLE ===== */
.password-wrapper {
  position: relative;
}

.password-wrapper .form-input {
  padding-right: 44px;
}

.toggle-password {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  transition: color 0.2s;
}

.toggle-password:hover {
  color: var(--primary);
}

/* ===== PRIMARY BUTTON ===== */
.btn-primary {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

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

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ===== DIVIDER ===== */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  color: var(--text-muted);
  font-size: 13px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

/* ===== GOOGLE BUTTON - SERAGAM DENGAN BIOMETRIK ===== */
.btn-google {
  width: 100%;
  padding: 14px;
  background: transparent;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  text-decoration: none;
}

.btn-google:hover {
  border-color: var(--primary);
  background: rgba(0, 212, 255, 0.05);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.1);
  transform: translateY(-1px);
}

.btn-google img {
  width: 20px;
  height: 20px;
}

/* ===== BIOMETRIK BUTTON ===== */
.btn-biometrik {
  width: 100%;
  padding: 14px;
  background: transparent;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
}

.btn-biometrik:hover {
  border-color: var(--primary);
  background: rgba(0, 212, 255, 0.05);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.1);
}

.btn-biometrik i {
  font-size: 16px;
}

/* Solid fingerprint icon styling */
.btn-biometrik .fa-fingerprint {
  color: var(--primary);
}

/* ===== ALERT / ERROR ===== */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
  align-items: center;
  gap: 8px;
}

.alert.show {
  display: flex;
}

.alert-error {
  background: rgba(255, 71, 87, 0.1);
  border: 1px solid rgba(255, 71, 87, 0.2);
  color: #ff6b7a;
}

.alert-success {
  background: rgba(46, 213, 115, 0.1);
  border: 1px solid rgba(46, 213, 115, 0.2);
  color: #2ed573;
}

/* ===== SPINNER ===== */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

.spinner.show { display: inline-block; }

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

/* ===== HIDDEN ===== */
.hidden { display: none !important; }

/* ===== RESPONSIVE ===== */
@media (max-width: 480px) {
  .login-card {
    padding: 28px 20px;
    border-radius: 14px;
  }
  .login-brand h1 { font-size: 24px; }
}