/**
 * uPanel Modern Login & Registration Stylesheet
 * Ultra-clean, Fixed-centered, Glassmorphic design with GPU-accelerated background.
 * Version: 2.1.0
 */

:root {
  --upanel-font: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  --upanel-primary: #BF7D39;
  --upanel-primary-hover: #a86b2d;
  --upanel-primary-glow: rgba(191, 125, 57, 0.35);
  --upanel-primary-subtle: rgba(191, 125, 57, 0.12);
  --upanel-secondary: #64748b;
  --upanel-success: #10b981;
  --upanel-danger: #ef4444;
  --upanel-warning: #f59e0b;
  --upanel-radius-sm: 8px;
  --upanel-radius-md: 14px;
  --upanel-radius-lg: 20px;
  --upanel-radius-xl: 26px;
  --upanel-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
.hd-upanel-modern-root.light {
  --upanel-bg: #fdfbf7;
  --upanel-bg-gradient: linear-gradient(135deg, #fdfbf7 0%, #f7f2ea 50%, #f3eee5 100%);
  --upanel-card-bg: rgba(255, 255, 255, 0.88);
  --upanel-card-border: rgba(255, 255, 255, 0.95);
  --upanel-card-shadow: 0 25px 60px -15px rgba(90, 50, 10, 0.08), 0 0 1px 1px rgba(0, 0, 0, 0.04);
  --upanel-text-main: #1c1917;
  --upanel-text-muted: #78716c;
  --upanel-input-bg: rgba(255, 255, 255, 0.92);
  --upanel-input-border: #e7e5e4;
  --upanel-input-focus: #BF7D39;
  --upanel-overlay-bg: rgba(253, 251, 247, 0.75);
  --orb-1: rgba(191, 125, 57, 0.22);
  --orb-2: rgba(217, 119, 6, 0.16);
  --orb-3: rgba(180, 83, 9, 0.18);
}

/* Dark Theme */
.hd-upanel-modern-root.dark {
  --upanel-bg: #12100e;
  --upanel-bg-gradient: linear-gradient(135deg, #0e0c0b 0%, #171412 50%, #0d0b0a 100%);
  --upanel-card-bg: rgba(28, 24, 21, 0.85);
  --upanel-card-border: rgba(255, 255, 255, 0.08);
  --upanel-card-shadow: 0 30px 70px -15px rgba(0, 0, 0, 0.75), 0 0 1px 1px rgba(191, 125, 57, 0.1);
  --upanel-text-main: #fafaf9;
  --upanel-text-muted: #a8a29e;
  --upanel-input-bg: rgba(38, 33, 29, 0.75);
  --upanel-input-border: rgba(255, 255, 255, 0.12);
  --upanel-input-focus: #d9924c;
  --upanel-overlay-bg: rgba(18, 16, 14, 0.85);
  --orb-1: rgba(191, 125, 57, 0.24);
  --orb-2: rgba(217, 119, 6, 0.18);
  --orb-3: rgba(146, 64, 14, 0.20);
}

/* Global Reset for Login screen */
body:has(.hd-upanel-modern-root) {
  margin: 0 !important;
  padding: 0 !important;
  overflow: hidden !important;
  background: var(--upanel-bg, #0b0f19) !important;
}

/* Base Fullscreen Fixed Root */
.hd-upanel-modern-root {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: var(--upanel-bg-gradient);
  font-family: var(--upanel-font);
  color: var(--upanel-text-main);
  direction: rtl;
  text-align: right;
  overflow: hidden;
  box-sizing: border-box;
  padding: 16px;
  z-index: 100;
  transition: background 0.35s ease, color 0.35s ease;
}

.hd-upanel-modern-root *,
.hd-upanel-modern-root *::before,
.hd-upanel-modern-root *::after {
  box-sizing: inherit;
}

/* Ambient Animated Glowing Background Orbs (GPU Accelerated) */
.hd-ambient-glow-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
}

.hd-ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(75px);
  opacity: 0.85;
  will-change: transform;
}

.hd-ambient-orb.orb-1 {
  width: 480px;
  height: 480px;
  background: var(--orb-1);
  top: -100px;
  right: -80px;
  animation: floatOrb1 20s ease-in-out infinite alternate;
}

.hd-ambient-orb.orb-2 {
  width: 420px;
  height: 420px;
  background: var(--orb-2);
  bottom: -60px;
  left: -60px;
  animation: floatOrb2 24s ease-in-out infinite alternate;
}

.hd-ambient-orb.orb-3 {
  width: 340px;
  height: 340px;
  background: var(--orb-3);
  top: 35%;
  left: 28%;
  animation: floatOrb3 16s ease-in-out infinite alternate;
}

@keyframes floatOrb1 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-70px, 50px, 0) scale(1.1); }
  100% { transform: translate3d(50px, 100px, 0) scale(0.95); }
}

@keyframes floatOrb2 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(80px, -60px, 0) scale(1.08); }
  100% { transform: translate3d(-40px, -90px, 0) scale(0.92); }
}

@keyframes floatOrb3 {
  0% { transform: translate3d(0, 0, 0) scale(0.92); }
  50% { transform: translate3d(-50px, -30px, 0) scale(1.12); }
  100% { transform: translate3d(60px, 40px, 0) scale(1); }
}

/* Custom Wallpaper Layer */
.hd-custom-bg-layer {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 1;
  opacity: 0.35;
}

.hd-custom-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--upanel-overlay-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 2;
}

/* Main Fixed Center Container */
.hd-login-container {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 430px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Fixed Glassmorphic Card */
.hd-glass-card {
  width: 100%;
  background: var(--upanel-card-bg);
  border: 1px solid var(--upanel-card-border);
  border-radius: var(--upanel-radius-xl);
  box-shadow: var(--upanel-card-shadow);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  padding: 34px 28px;
  position: relative;
  box-sizing: border-box;
  max-height: calc(100vh - 36px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--upanel-input-border) transparent;
}

.hd-glass-card::-webkit-scrollbar {
  width: 5px;
}
.hd-glass-card::-webkit-scrollbar-thumb {
  background: var(--upanel-input-border);
  border-radius: 4px;
}

@media (max-width: 480px) {
  .hd-glass-card {
    padding: 26px 20px;
    border-radius: var(--upanel-radius-lg);
  }
  .hd-card-corner-actions {
    top: 14px;
    right: 14px;
    left: 14px;
  }
  .hd-card-action-btn {
    width: 32px;
    height: 32px;
  }
  .hd-card-action-btn svg {
    width: 15px;
    height: 15px;
  }
}

/* Card Top Border Glow */
.hd-glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 2.5px;
  background: linear-gradient(90deg, transparent, var(--upanel-primary), transparent);
  opacity: 0.8;
}

/* Card Corner Actions (Symmetrical Home & Theme Toggle) */
.hd-card-corner-actions {
  position: absolute;
  top: 18px;
  right: 18px;
  left: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
}

.hd-card-action-btn {
  pointer-events: auto;
  background: var(--upanel-input-bg);
  border: 1px solid var(--upanel-input-border);
  color: var(--upanel-text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--upanel-transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.hd-card-action-btn:hover {
  color: var(--upanel-primary);
  border-color: var(--upanel-primary);
  transform: translateY(-2px) scale(1.06);
  box-shadow: 0 4px 14px var(--upanel-primary-glow);
}

.hd-card-action-btn svg {
  width: 17px;
  height: 17px;
  fill: currentColor;
  display: block;
}

/* Brand Header */
.hd-brand-header {
  text-align: center;
  margin-bottom: 24px;
}

.hd-brand-logo {
  max-height: 60px;
  max-width: 170px;
  width: auto;
  height: auto;
  margin: 0 auto 16px;
  display: block;
  object-fit: contain;
  transition: transform 0.3s ease;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.08));
}

.hd-brand-logo:hover {
  transform: scale(1.03);
}

.hd-form-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--upanel-text-main);
  margin: 0 0 6px 0;
  letter-spacing: -0.2px;
}

.hd-form-subtitle {
  font-size: 13px;
  color: var(--upanel-text-muted);
  margin: 0;
  line-height: 1.5;
}

/* Step Fade-in */
.hd-step-animated {
  animation: hdStepFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes hdStepFadeIn {
  from {
    opacity: 0;
    transform: translate3d(0, 10px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* Modern Input Groups */
.hd-input-group {
  margin-bottom: 16px;
  position: relative;
}

.hd-input-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--upanel-text-main);
  margin-bottom: 6px;
}

.hd-input-control-wrap {
  position: relative;
  width: 100%;
  display: block;
}

.hd-input-icon {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--upanel-text-muted);
  pointer-events: none;
  z-index: 3;
  transition: color 0.2s ease, transform 0.2s ease;
}

.hd-input-icon svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  display: block;
}

.hd-input-control-wrap:focus-within .hd-input-icon {
  color: var(--upanel-primary);
  transform: translateY(-50%) scale(1.08);
}

.hd-input-field {
  width: 100%;
  height: 48px;
  padding: 0 44px 0 16px;
  background: var(--upanel-input-bg);
  border: 1.5px solid var(--upanel-input-border);
  border-radius: var(--upanel-radius-md);
  font-family: var(--upanel-font);
  font-size: 14px;
  color: var(--upanel-text-main);
  outline: none;
  box-sizing: border-box;
  transition: var(--upanel-transition);
}

/* Field with 1 action button or spinner on the left */
.hd-input-field.has-actions {
  padding-left: 48px !important;
}

/* Field with 2 action buttons on the left (eye + password generator) */
.hd-input-field.has-actions-dual {
  padding-left: 80px !important;
}

/* LTR text alignment with right-aligned Persian placeholder */
.hd-input-field.ltr-field {
  direction: ltr;
  text-align: left;
}

.hd-input-field.ltr-field:placeholder-shown {
  direction: rtl;
  text-align: right;
}

.hd-input-field.ltr-field:focus {
  direction: ltr;
  text-align: left;
}

.hd-input-field::placeholder {
  color: var(--upanel-text-muted);
  opacity: 0.65;
  font-family: var(--upanel-font);
  font-size: 13px;
}

.hd-input-field:focus {
  border-color: var(--upanel-input-focus);
  background: var(--upanel-card-bg);
  box-shadow: 0 0 0 3.5px var(--upanel-primary-glow);
}

.hd-input-group.is-invalid .hd-input-field {
  border-color: var(--upanel-danger);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.hd-field-error {
  font-size: 11.5px;
  color: var(--upanel-danger);
  margin-top: 5px;
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: 5px;
  line-height: 1.4;
}

.hd-field-error svg {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* Password Actions inside Input */
.hd-input-actions {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 3;
}

.hd-action-icon-btn {
  background: transparent;
  border: none;
  color: var(--upanel-text-muted);
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.hd-action-icon-btn:hover {
  color: var(--upanel-primary);
  background: var(--upanel-primary-subtle, rgba(191, 125, 57, 0.12));
  transform: scale(1.08);
}

.hd-action-icon-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  display: block;
}

/* Spinners */
.hd-inline-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(148, 163, 184, 0.3);
  border-top-color: var(--upanel-primary);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  display: inline-block;
}

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

/* Buttons */
.hd-btn-primary {
  width: 100%;
  height: 46px;
  background: var(--upanel-primary);
  color: #ffffff;
  border: none;
  border-radius: var(--upanel-radius-md);
  font-family: var(--upanel-font);
  font-size: 14.5px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 6px 18px -3px var(--upanel-primary-glow);
  transition: var(--upanel-transition);
  margin-top: 8px;
}

.hd-btn-primary:hover:not(:disabled) {
  background: var(--upanel-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px -3px var(--upanel-primary-glow);
}

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

.hd-btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.hd-btn-secondary {
  width: 100%;
  height: 42px;
  background: transparent;
  color: var(--upanel-text-main);
  border: 1.5px solid var(--upanel-input-border);
  border-radius: var(--upanel-radius-md);
  font-family: var(--upanel-font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--upanel-transition);
  margin-top: 10px;
}

.hd-btn-secondary:hover:not(:disabled) {
  background: rgba(148, 163, 184, 0.1);
  border-color: var(--upanel-primary);
  color: var(--upanel-primary);
  transform: translateY(-1px);
}

.hd-btn-link-back {
  background: none;
  border: none;
  color: var(--upanel-text-muted);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-top: 14px;
  padding: 8px 12px;
  border-radius: var(--upanel-radius-sm);
  transition: var(--upanel-transition);
  width: 100%;
}

.hd-btn-link-back:hover {
  color: var(--upanel-primary);
  background: rgba(191, 125, 57, 0.08);
}

.hd-btn-link-back svg {
  width: 15px;
  height: 15px;
  fill: currentColor;
  display: block;
  transition: transform 0.2s ease;
}

.hd-btn-link-back:hover svg {
  transform: translateX(3px);
}

/* Alert Banners */
.hd-alert-banner {
  padding: 10px 14px;
  border-radius: var(--upanel-radius-md);
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: hdStepFadeIn 0.25s ease-out;
}

.hd-alert-danger {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.22);
}

.hd-alert-success {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.22);
}

/* OTP Code */
.hd-otp-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 10px 0 16px;
}

.hd-otp-input {
  width: 200px;
  height: 52px;
  text-align: center;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 10px;
  padding-right: 10px;
  border: 2px solid var(--upanel-input-border);
  border-radius: var(--upanel-radius-md);
  background: var(--upanel-input-bg);
  color: var(--upanel-text-main);
  outline: none;
  transition: var(--upanel-transition);
  direction: ltr;
}

.hd-otp-input:focus {
  border-color: var(--upanel-primary);
  box-shadow: 0 0 0 3.5px var(--upanel-primary-glow);
}

.hd-otp-timer-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 12px 0 4px;
  font-size: 12.5px;
  color: var(--upanel-text-muted);
}

.hd-timer-badge {
  background: var(--upanel-primary-subtle, rgba(191, 125, 57, 0.12));
  color: var(--upanel-primary);
  padding: 2px 8px;
  border-radius: 16px;
  font-weight: 700;
  font-family: monospace;
  font-size: 13.5px;
}

.hd-btn-resend-sms {
  background: none;
  border: none;
  color: var(--upanel-primary);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  padding: 4px 6px;
  transition: opacity 0.2s ease;
}

.hd-btn-resend-sms:disabled {
  color: var(--upanel-text-muted);
  text-decoration: none;
  cursor: not-allowed;
  opacity: 0.6;
}

/* Success Screen */
.hd-success-screen {
  text-align: center;
  padding: 16px 8px;
}

.hd-success-icon-wrap {
  width: 68px;
  height: 68px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  border: 2px solid var(--upanel-success);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--upanel-success);
  animation: popSuccess 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hd-success-icon-wrap svg {
  width: 36px;
  height: 36px;
  fill: currentColor;
}

@keyframes popSuccess {
  from { transform: scale(0.4); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.hd-success-title {
  font-size: 19px;
  font-weight: 800;
  color: var(--upanel-text-main);
  margin-bottom: 6px;
}

.hd-success-subtitle {
  font-size: 13px;
  color: var(--upanel-text-muted);
  margin-bottom: 20px;
}

/* Password Generator Modal */
.hd-pass-gen-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 999;
  animation: hdStepFadeIn 0.25s ease-out;
}

.hd-pass-gen-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 400px;
  background: var(--upanel-card-bg);
  border: 1px solid var(--upanel-card-border);
  border-radius: var(--upanel-radius-xl);
  box-shadow: var(--upanel-card-shadow);
  padding: 26px 22px;
  z-index: 1000;
  direction: rtl;
  color: var(--upanel-text-main);
  animation: hdModalZoom 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes hdModalZoom {
  from { opacity: 0; transform: translate(-50%, -46%) scale(0.95); }
  to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.hd-pass-gen-title {
  font-size: 17px;
  font-weight: 800;
  margin-top: 0;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hd-pass-gen-close {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--upanel-text-muted);
  cursor: pointer;
}

.hd-pass-display-box {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.hd-pass-display-input {
  flex: 1;
  height: 42px;
  background: var(--upanel-input-bg);
  border: 1.5px solid var(--upanel-input-border);
  border-radius: var(--upanel-radius-md);
  font-family: monospace;
  font-size: 14.5px;
  font-weight: 600;
  padding: 0 10px;
  direction: ltr;
  color: var(--upanel-primary);
  outline: none;
}

.hd-pass-copy-btn {
  height: 42px;
  padding: 0 14px;
  background: var(--upanel-primary);
  color: #fff;
  border: none;
  border-radius: var(--upanel-radius-md);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--upanel-transition);
}

.hd-pass-copy-btn:hover {
  background: var(--upanel-primary-hover);
}

.hd-pass-option-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--upanel-text-main);
}

.hd-range-slider {
  width: 100%;
  accent-color: var(--upanel-primary);
  margin-top: 6px;
  cursor: pointer;
}

.hd-toggle-checkbox {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 22px;
}

.hd-toggle-checkbox input {
  opacity: 0;
  width: 0;
  height: 0;
}

.hd-toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--upanel-input-border);
  transition: .3s;
  border-radius: 22px;
}

.hd-toggle-slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

.hd-toggle-checkbox input:checked + .hd-toggle-slider {
  background-color: var(--upanel-primary);
}

.hd-toggle-checkbox input:checked + .hd-toggle-slider:before {
  transform: translateX(16px);
}

.hd-pass-gen-actions {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}