/* auth.css */

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

:root {
  --bg-primary:       #0d0f14;
  --bg-secondary:     #13161e;
  --bg-card:          #1a1d27;
  --bg-input:         #12151d;
  --bg-hover:         #1f2333;

  --accent:           #6c63ff;
  --accent-hover:     #5a52e0;
  --accent-glow:      rgba(108, 99, 255, 0.25);
  --accent-light:     rgba(108, 99, 255, 0.12);

  --text-primary:     #e8eaf2;
  --text-secondary:   #8b91a8;
  --text-muted:       #4e546a;

  --border:           #252836;
  --border-focus:     #6c63ff;

  --success:          #4ade80;
  --success-bg:       rgba(74, 222, 128, 0.1);
  --error:            #f87171;
  --error-bg:         rgba(248, 113, 113, 0.1);
  --warning:          #fbbf24;

  --radius-sm:        6px;
  --radius-md:        10px;
  --radius-lg:        16px;
  --radius-xl:        22px;

  --font:             'Peyda', system-ui, sans-serif;
  --transition:       0.2s ease;
}

@font-face {
    font-family: 'Peyda';
    src: url('Font.woff2') format('woff2');
    font-weight: 600;
}

body {
  font-family: var(--font);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  overflow-x: hidden;
}

/* ─── پس‌زمینه متحرک ─── */
.bg-shapes {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.07;
  animation: floatShape 8s ease-in-out infinite;
}

.shape-1 {
  width: 400px;
  height: 400px;
  background: var(--accent);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}

.shape-2 {
  width: 300px;
  height: 300px;
  background: #a78bfa;
  bottom: -80px;
  left: -60px;
  animation-delay: 3s;
}

.shape-3 {
  width: 200px;
  height: 200px;
  background: #60a5fa;
  top: 50%;
  left: 50%;
  animation-delay: 6s;
}

@keyframes floatShape {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-20px) scale(1.05); }
}

/* ─── کانتینر اصلی ─── */
.auth-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

/* ─── برند ─── */
.brand {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.brand-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  padding: 0px;
}

.brand-icon img {
  width: 100%;
  height: 100%;
  filter: grayscale(1) invert(1) brightness(1);
}


.brand-name {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.brand-tagline {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ─── کارت ─── */
.card {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* ─── تب‌بار ─── */
.tab-bar {
  display: flex;
  position: relative;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0.4rem;
  gap: 0.25rem;
}

.tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: var(--font);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
  position: relative;
  z-index: 1;
}

.tab-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.tab-btn.active {
  color: var(--text-primary);
  background: var(--bg-card);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.tab-btn:not(.active):hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

/* ─── پنل‌های فرم ─── */
.form-panel {
  display: none;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.75rem;
  animation: slideIn 0.25s ease;
}

.form-panel.active {
  display: flex;
}

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

/* ─── گروه فیلد ─── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-label svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

/* ─── ورودی ─── */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input {
  width: 100%;
  padding: 0.75rem 2.8rem 0.75rem 1rem;
  background: var(--bg-input);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

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

.form-input.is-valid {
  border-color: var(--success);
}

.form-input.is-error {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.15);
}

.input-status {
  position: absolute;
  left: 0.75rem;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.toggle-password {
  position: absolute;
  left: 0.6rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

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

.toggle-password svg {
  width: 17px;
  height: 17px;
}

/* ─── خطا و راهنما ─── */
.field-error {
  font-size: 0.78rem;
  color: var(--error);
  min-height: 1rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.field-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ─── قدرت رمز ─── */
.strength-bar {
  height: 4px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 0.25rem;
}

.strength-fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  transition: width 0.4s ease, background 0.4s ease;
}

.strength-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ─── گزینه‌های فرم ─── */
.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: -0.25rem;
}

.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.83rem;
  color: var(--text-secondary);
  user-select: none;
}

.checkbox-wrapper input {
  display: none;
}

.checkbox-custom {
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  background: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition), background var(--transition);
  flex-shrink: 0;
}

.checkbox-wrapper input:checked + .checkbox-custom {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-wrapper input:checked + .checkbox-custom::after {
  content: '';
  width: 8px;
  height: 5px;
  border-left: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  transform: rotate(-45deg) translateY(-1px);
  display: block;
}

.forgot-link {
  font-size: 0.83rem;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

.forgot-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ─── پیام ─── */
.form-message {
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.9rem;
}

.form-message.success {
  display: flex;
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.form-message.error {
  display: flex;
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.form-message svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ─── دکمه اصلی ─── */
.btn-primary {
  width: 100%;
  padding: 0.85rem 1.5rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px var(--accent-glow);
  margin-top: 0.25rem;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 28px var(--accent-glow);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

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

.btn-primary .btn-icon {
  width: 18px;
  height: 18px;
}

.btn-loader {
  display: flex;
  align-items: center;
}

.btn-loader.hidden {
  display: none;
}

.spinner {
  width: 18px;
  height: 18px;
  animation: spin 0.8s linear infinite;
}

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

/* ─── فوتر ─── */
.footer-note {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-note svg {
  width: 13px;
  height: 13px;
  color: var(--success);
}

/* ─── ریسپانسیو ─── */
@media (max-width: 480px) {
  .form-panel {
    padding: 1.25rem;
  }

  .brand-name {
    font-size: 1.5rem;
  }
}