/* ═══════════════════════════════════════════════════════════
   Fadel 360° v2 — Login & App Shell Styles
   Version: 1.0.0
   Colors: Fadel 360° dark navy blue palette
   ═══════════════════════════════════════════════════════════ */

/* ── CSS Variables (Design Tokens) ── */
:root {
  /* Brand navy palette */
  --f360-navy-900: #00020c;
  --f360-navy-800: #000418;
  --f360-navy-700: #000624;
  --f360-navy-600: #000830;
  --f360-navy-500: #000c3c;
  --f360-navy-400: #0d1a5c;
  --f360-navy-300: #1a2980;

  /* Action blues */
  --f360-blue-500: #3498db;
  --f360-blue-400: #5dade2;
  --f360-blue-600: #2980b9;
  --f360-blue-700: #1a5276;

  /* Semantic surface */
  --md-surface: #060a1e;
  --md-surface-container: #0c1230;
  --md-surface-container-high: #131b42;
  --md-on-surface: #e6e1ec;
  --md-on-surface-variant: #b0aabd;
  --md-outline: #7a7588;
  --md-outline-variant: #2a2d52;

  /* Primary */
  --md-primary: #5dade2;
  --md-primary-hover: #85c1e9;
  --md-on-primary: #001a33;
  --md-primary-container: #1a5276;
  --md-on-primary-container: #d6eaf8;

  /* Feedback */
  --md-error: #f2b8b5;
  --md-error-container: #8c1d18;
  --md-success: #81c784;
  --md-success-container: #1b311c;
  --md-warning: #ffa726;
  --md-warning-container: #4e3200;

  /* Gradient */
  --grad-primary: linear-gradient(135deg, #3498db 0%, #1a5276 50%, #0d1a5c 100%);
  --grad-btn: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
  --grad-surface: linear-gradient(180deg, #000c3c 0%, #000830 25%, #000624 50%, #000418 75%, #00020c 100%);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

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

/* ── Base ── */
html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-main);
  background: var(--grad-surface);
  background-attachment: fixed;
  color: var(--md-on-surface);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  overflow-y: auto;
  position: relative;
  padding: 16px;
  margin: 0;
}

/* ── Animated Background Glows ── */
.bg-glow {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  overflow: hidden;
}
.bg-glow::before,
.bg-glow::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(130px);
  opacity: .12;
  animation: glowDrift 14s ease-in-out infinite alternate;
}
.bg-glow::before {
  width: 500px; height: 500px;
  background: #3498db;
  top: -12%; left: -8%;
}
.bg-glow::after {
  width: 420px; height: 420px;
  background: #1a2980;
  bottom: -12%; right: -8%;
  animation-delay: -7s;
  animation-direction: alternate-reverse;
}
@keyframes glowDrift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 35px) scale(1.12); }
}

/* ── Login Card ── */
.login-card {
  position: relative; z-index: 1;
  width: 100%; max-width: 430px;
  padding: 40px 34px 30px;
  background: rgba(12, 18, 48, .78);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(52, 152, 219, .1);
  box-shadow:
    0 8px 48px rgba(0, 0, 0, .5),
    0 0 0 1px rgba(255, 255, 255, .03) inset;
  animation: cardIn .55s var(--ease-out) both;
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(22px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── Brand Header ── */
.login-brand { text-align: center; margin-bottom: 26px; }
.brand-logo {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-bottom: 14px;
}
.brand-logo img {
  height: auto; max-height: 60px; width: auto; max-width: 220px;
  object-fit: contain;
  filter: drop-shadow(0 2px 10px rgba(52, 152, 219, .3));
}
.login-brand p {
  font-size: .8125rem; color: var(--md-on-surface-variant);
  margin-top: 4px; letter-spacing: .02em;
}

/* ── Language Selector ── */
.lang-selector {
  display: flex; justify-content: center; gap: 4px; margin-bottom: 22px;
}
.lang-btn {
  padding: 5px 14px;
  border: 1px solid var(--md-outline-variant);
  border-radius: 20px;
  background: transparent;
  color: var(--md-outline);
  font-family: inherit;
  font-size: .6875rem; font-weight: 500;
  cursor: pointer; letter-spacing: .04em;
  transition: all .2s;
}
.lang-btn:hover {
  border-color: var(--md-outline);
  color: var(--md-on-surface-variant);
}
.lang-btn.active {
  background: var(--grad-btn);
  border-color: var(--f360-blue-500);
  color: #fff;
}

/* ── Form ── */
.form-group { margin-bottom: 18px; position: relative; }

.form-label {
  display: block; font-size: .6875rem; font-weight: 500;
  color: var(--md-on-surface-variant); margin-bottom: 6px;
  text-transform: uppercase; letter-spacing: .06em;
}

.input-wrapper {
  position: relative;
  display: flex; align-items: center;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.input-wrapper:focus-within {
  border-color: var(--f360-blue-500);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, .15);
}
.input-wrapper .field-icon {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  width: 44px; align-self: stretch;
  color: var(--md-outline);
  background: transparent;
  border-right: 1px solid rgba(255, 255, 255, .06);
  position: relative; z-index: 2;
  transition: color .2s, border-color .2s;
}
.input-wrapper .field-icon svg {
  width: 16px; height: 16px; flex-shrink: 0;
  display: block;
  margin: auto;
}
.input-wrapper:focus-within .field-icon {
  color: var(--f360-blue-500);
  border-right-color: rgba(52, 152, 219, .25);
}

.form-input {
  flex: 1; min-width: 0; padding: 13px 14px 13px 12px;
  background: transparent !important; background-color: transparent !important;
  border: none;
  color: var(--md-on-surface); font-family: inherit;
  font-size: 1rem; outline: none;
  -webkit-appearance: none; -moz-appearance: none; appearance: none;
}
.form-input::placeholder { color: var(--md-outline); font-size: .875rem; }

/* Autofill dark override — inset shadow matches wrapper bg on card */
.form-input:-webkit-autofill,
.form-input:-webkit-autofill:hover,
.form-input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--md-on-surface) !important;
  -webkit-box-shadow: 0 0 0 1000px #0f1536 inset !important;
  box-shadow: 0 0 0 1000px #0f1536 inset !important;
  background-color: #0f1536 !important;
  caret-color: var(--md-on-surface);
  transition: background-color 9999s ease 0s;
}
/* Firefox autofill */
.form-input:-moz-autofill {
  background: #0f1536 !important;
  box-shadow: 0 0 0 1000px #0f1536 inset !important;
  filter: none !important;
}

/* Password toggle */
.toggle-pass {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  color: var(--md-on-surface-variant); cursor: pointer; font-size: 20px;
  border: none; background: none; padding: 0;
  transition: color .15s;
}
.toggle-pass:hover { color: var(--md-on-surface); }

/* ── Primary Button ── */
.btn-primary-f360 {
  width: 100%; padding: 13px;
  border: none; border-radius: 14px;
  background: var(--grad-btn);
  color: #fff;
  font-family: inherit; font-size: .9375rem; font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 6px;
  transition: box-shadow .2s, transform .1s, opacity .15s;
  letter-spacing: .02em;
}
.btn-primary-f360:hover {
  box-shadow: 0 4px 22px rgba(52, 152, 219, .35);
  transform: translateY(-1px);
}
.btn-primary-f360:active { transform: translateY(0); box-shadow: none; }
.btn-primary-f360:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* Spinner */
.spinner-sm {
  width: 18px; height: 18px;
  border: 2px solid rgba(255, 255, 255, .3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Forgot Link ── */
.forgot-link {
  display: block; text-align: center; margin-top: 16px;
  color: var(--f360-blue-400); font-size: .8125rem; font-weight: 500;
  text-decoration: none; cursor: pointer;
  transition: opacity .2s;
}
.forgot-link:hover { opacity: .8; text-decoration: underline; }

/* ── Alerts / Feedback ── */
.login-error {
  padding: 12px 16px;
  background: var(--md-error-container); border-radius: var(--radius-md);
  color: var(--md-error); font-size: .8125rem; text-align: center;
  margin-bottom: 16px; display: none;
  animation: slideIn .25s ease;
}
.login-success {
  padding: 12px 16px;
  background: var(--md-success-container); border-radius: var(--radius-md);
  color: var(--md-success); font-size: .8125rem; text-align: center;
  margin-bottom: 16px; display: none;
  animation: slideIn .25s ease;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Footer ── */
.login-footer {
  text-align: center; margin-top: 20px;
  font-size: .6875rem; color: var(--md-outline); letter-spacing: .02em;
}

/* ── Modal Overlay (Forgot Password) ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0, 2, 12, .7);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal-card {
  width: 100%; max-width: 410px; margin: 16px;
  background: var(--md-surface-container);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(52, 152, 219, .1);
  box-shadow: 0 12px 48px rgba(0, 0, 0, .55);
  padding: 30px 26px 24px;
  transform: translateY(14px) scale(.97);
  transition: transform .25s var(--ease-out);
}
.modal-overlay.open .modal-card { transform: translateY(0) scale(1); }

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px;
}
.modal-header h2 {
  font-size: 1.125rem; font-weight: 600; color: var(--md-on-surface);
}
.modal-close {
  background: none; border: none; color: var(--md-on-surface-variant);
  cursor: pointer; padding: 4px; border-radius: 50%;
  transition: background .15s;
  font-size: 20px; line-height: 1;
}
.modal-close:hover { background: rgba(255, 255, 255, .08); }

.modal-desc {
  font-size: .8125rem; color: var(--md-on-surface-variant);
  margin-bottom: 20px; line-height: 1.5;
}

/* Modal form groups */
.modal-group { margin-bottom: 16px; }
.modal-group .form-label { margin-bottom: 6px; }
.modal-group .input-wrapper { background: rgba(255, 255, 255, .04); }

/* Modal states */
.modal-error {
  padding: 10px 14px; background: var(--md-error-container);
  border-radius: 10px; color: var(--md-error); font-size: .8125rem;
  text-align: center; margin-bottom: 14px; display: none;
  animation: slideIn .25s ease;
}
.modal-success {
  padding: 10px 14px; background: var(--md-success-container);
  border-radius: 10px; color: var(--md-success); font-size: .8125rem;
  text-align: center; margin-bottom: 14px; display: none;
  animation: slideIn .25s ease; line-height: 1.5;
}

/* Modal buttons */
.btn-modal {
  width: 100%; padding: 12px; border: none; border-radius: var(--radius-md);
  background: var(--grad-btn);
  color: #fff; font-family: inherit; font-size: .875rem; font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: box-shadow .2s, transform .1s, opacity .15s;
}
.btn-modal:hover { box-shadow: 0 4px 20px rgba(52, 152, 219, .3); transform: translateY(-1px); }
.btn-modal:active { transform: translateY(0); }
.btn-modal:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn-secondary-f360 {
  width: 100%; padding: 10px; margin-top: 10px;
  border: 1px solid var(--md-outline-variant); border-radius: var(--radius-md);
  background: transparent;
  color: var(--md-on-surface-variant); font-family: inherit; font-size: .8125rem; font-weight: 500;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  transition: all .2s;
}
.btn-secondary-f360:hover {
  border-color: var(--f360-blue-500);
  color: var(--f360-blue-400);
  background: rgba(52, 152, 219, .06);
}
.btn-secondary-f360:disabled { opacity: .4; cursor: not-allowed; }

/* ── Password Rules ── */
.pw-rules { list-style: none; padding: 0; margin: 0 0 14px; }
.pw-rules li {
  font-size: .75rem; padding: 3px 0; display: flex; align-items: center; gap: 6px;
  color: var(--md-on-surface-variant); transition: color .2s;
}
.pw-rules li.rule-fail { color: var(--md-error); }
.pw-rules li.rule-pass { color: var(--md-success); }
.pw-match { font-size: .75rem; padding: 3px 0; display: none; align-items: center; gap: 6px; }
.pw-match.show { display: flex; }
.pw-match.match-ok { color: var(--md-success); }
.pw-match.match-fail { color: var(--md-error); }

/* ── Loading Overlay ── */
.loading-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0, 2, 12, .85);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .3s ease;
}
.loading-overlay.active { opacity: 1; pointer-events: auto; }
.loading-spinner {
  width: 44px; height: 44px;
  border: 3px solid rgba(52, 152, 219, .2);
  border-top-color: var(--f360-blue-500);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
.loading-text {
  margin-top: 16px; font-size: .8125rem; font-weight: 500;
  color: var(--f360-blue-400); letter-spacing: .05em;
}

/* ── SPA View Container ── */
#app-view {
  width: 100%; display: flex;
  align-items: center; justify-content: center;
}

/* ── Responsive ── */
@media (max-width: 480px) {
  body { padding: 10px; }
  .login-card { padding: 28px 20px 22px; border-radius: 20px; }
  .login-brand { margin-bottom: 18px; }
  .brand-logo img { max-width: 200px; }
  .login-brand p { font-size: .75rem; }
  .form-input { padding: 12px 14px; font-size: 1rem; }
  .btn-primary-f360 { padding: 14px; font-size: 1rem; }
  .lang-btn { padding: 6px 12px; }
  .modal-card { padding: 22px 18px 20px; }
}

@media (max-width: 360px) {
  body { padding: 6px; }
  .login-card { padding: 22px 14px 18px; border-radius: 18px; }
}