@font-face {
  font-family: 'ROBOTO';
  src: url('../fonts/RobotoCondensed-VariableFont_wght.ttf') format('truetype');
}

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

:root {
  --brand: #2E5961;
  --brand2: #3e7b86;
  --brand-soft: rgba(46, 89, 97, 0.12);
  --brand-shadow: rgba(46, 89, 97, 0.26);
  --bg: #F1F5F1;
  --card: #ffffff;
  --text: #374151;
  --heading: #1a2332;
  --muted: #9ca3af;
  --line: #e0e0e0;
  --line-soft: #f0f0f0;
  --input-bg: #f9f9f9;
  --ok: #22c55e;
  --warn: #F59E0B;
  --err: #EF4444;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: 'ROBOTO', sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
  scrollbar-width: none;
}
html::-webkit-scrollbar,
body::-webkit-scrollbar { display: none; }

a { color: inherit; text-decoration: none; }

/* ═════════════════════ PAGE LAYOUT ═════════════════════ */
.signin-page {
  display: flex;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

/* ═════════════════════ LEFT SIDE ═════════════════════ */
.signin-left {
  position: relative;
  width: 45%;
  height: 100vh;
  background: linear-gradient(135deg, #2E5961, #3e7b86);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.signin-left-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 32px;
}

.signin-logo {
  width: 300px;
  height: auto;
  margin-bottom: 14px;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,0.18));
}

.signin-brand {
  color: #ffffff;
  font-family: 'ROBOTO', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.4px;
  margin-bottom: 10px;
}

.signin-tagline {
  color: #ffffff;
  opacity: 0.85;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.55;
  max-width: 280px;
}

.signin-social-proof {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.avatars-row {
  display: flex;
  align-items: center;
}

.mini-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid #ffffff;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'ROBOTO', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.18);
}

.mini-avatar + .mini-avatar {
  margin-left: -10px;
}

.social-proof-text {
  color: #ffffff;
  opacity: 0.7;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ═════════════════════ RIGHT SIDE ═════════════════════ */
.signin-right {
  position: relative;
  width: 55%;
  height: 100vh;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow-y: auto;
  scrollbar-width: none;
}
.signin-right::-webkit-scrollbar { display: none; }

/* ═════════════════════ FORM BOX ═════════════════════ */
.signin-box {
  position: relative;
  width: 100%;
  max-width: 460px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12);
  padding: 36px 36px 32px;
}

/* ═════════════════════ TABS (CSS-only toggle) ═════════════════════ */
.signin-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background: #f0f0f0;
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 28px;
}

.tab {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  border-radius: 9px;
  font-family: 'ROBOTO', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.1px;
  color: #888;
  background: transparent;
  transition: all 0.3s ease;
  cursor: pointer;
}

/* Default state — Connexion is active */
.tab-signin {
  background: #ffffff;
  color: var(--brand);
  box-shadow: 0 2px 8px rgba(46, 89, 97, 0.10);
}

/* When Inscription is targeted — flip active tab */
.signin-box:has(#form-signup:target) .tab-signin {
  background: transparent;
  color: #888;
  box-shadow: none;
}
.signin-box:has(#form-signup:target) .tab-signup {
  background: #ffffff;
  color: var(--brand);
  box-shadow: 0 2px 8px rgba(46, 89, 97, 0.10);
}

/* ═════════════════════ FORMS ═════════════════════ */
.auth-form {
  display: none;
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
}

/* Default: signin visible */
#form-signin { display: block; opacity: 1; }
#form-signup { display: none; }

/* When signup is targeted */
.signin-box:has(#form-signup:target) #form-signin { display: none; }
.signin-box:has(#form-signup:target) #form-signup {
  display: block;
  animation: fadeIn 0.3s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.form-title {
  font-family: 'ROBOTO', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--heading);
  letter-spacing: -0.3px;
  margin-bottom: 4px;
}

.form-subtitle {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 22px;
}

/* ═════════════════════ FORM FIELDS ═════════════════════ */
.form-field {
  position: relative;
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-field label {
  display: block;
  font-family: 'ROBOTO', sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 6px;
  letter-spacing: 0.2px;
  text-transform: uppercase;
}

.form-field input {
  width: 100%;
  height: 50px;
  border: 1.5px solid var(--line);
  border-radius: 14px;
  padding: 0 16px;
  font-family: 'ROBOTO', sans-serif;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--input-bg);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.form-field input::placeholder {
  color: #bbb;
}

.form-field input:focus {
  border-color: var(--brand);
  background: #ffffff;
  box-shadow: 0 0 0 3px var(--brand-soft);
}

/* Wrapper for input + eye icon so the eye centers on the INPUT only */
.input-with-icon {
  position: relative;
  width: 100%;
}

/* Password field gets right padding for the eye toggle */
.password-field input[type="password"],
.password-field input[type="text"] {
  padding-right: 48px;
}

/* ═════════════════════ REAL-TIME VALIDATION ═════════════════════ */
/* Only style after the user has typed something */
.form-field input:not(:placeholder-shown):valid {
  border-color: var(--ok);
}

.form-field input:not(:placeholder-shown):invalid {
  border-color: var(--err);
}

.form-field input:not(:placeholder-shown):valid:focus {
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.form-field input:not(:placeholder-shown):invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

/* ═════════════════════ SHOW / HIDE PASSWORD ═════════════════════ */
.show-pwd-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

.show-pwd-label {
  position: absolute;
  right: 7px;
  top: 7px;                 /* (50 - 36) / 2 — exact, no % rounding */
  width: 36px;
  height: 36px;
  padding: 0;
  margin: 0;
  display: grid;
  place-items: center;      /* bulletproof centering for the single SVG child */
  color: #888;
  cursor: pointer;
  border-radius: 10px;
  transition: color 0.3s ease, background 0.3s ease;
  user-select: none;
  z-index: 2;
  line-height: 0;           /* kill baseline noise */
  font-size: 0;
}

.show-pwd-label svg {
  display: block;
  width: 18px;
  height: 18px;
  margin-top: 8px;
  padding: 0;
  grid-area: 1 / 1;         /* both SVGs stack in the same cell */
}

/* Eye icon swap: show closed eye when password is visible */
.show-pwd-label .icon-eye-off { display: none; }
.input-with-icon:has(.show-pwd-toggle:checked) .show-pwd-label .icon-eye { display: none; }
.input-with-icon:has(.show-pwd-toggle:checked) .show-pwd-label .icon-eye-off { display: block; }

.show-pwd-label:hover {
  color: var(--brand);
  background: var(--brand-soft);
}

.input-with-icon:has(.show-pwd-toggle:checked) .show-pwd-label {
  color: var(--brand);
}

/* ═════════════════════ PASSWORD STRENGTH ═════════════════════ */
.pwd-strength {
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 16px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.pwd-strength[data-strength="weak"],
.pwd-strength[data-strength="medium"],
.pwd-strength[data-strength="strong"] {
  opacity: 1;
}

.pwd-strength-bar {
  position: relative;
  flex: 1;
  height: 4px;
  background: #eee;
  border-radius: 999px;
  overflow: hidden;
}

.pwd-strength-bar i {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: var(--err);
  transition: width 0.3s ease, background 0.3s ease;
}

.pwd-strength[data-strength="weak"] .pwd-strength-bar i {
  width: 33%;
  background: var(--err);
}
.pwd-strength[data-strength="medium"] .pwd-strength-bar i {
  width: 66%;
  background: var(--warn);
}
.pwd-strength[data-strength="strong"] .pwd-strength-bar i {
  width: 100%;
  background: var(--ok);
}

.pwd-strength-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  min-width: 50px;
  text-align: right;
}

.pwd-strength[data-strength="weak"]   .pwd-strength-label { color: var(--err); }
.pwd-strength[data-strength="medium"] .pwd-strength-label { color: var(--warn); }
.pwd-strength[data-strength="strong"] .pwd-strength-label { color: var(--ok); }

/* ═════════════════════ FORGOT LINK ═════════════════════ */
.forgot-link {
  display: block;
  text-align: right;
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 600;
  margin: -4px 0 18px;
  transition: color 0.3s ease;
}

.forgot-link:hover { color: var(--brand2); text-decoration: underline; }

/* ═════════════════════ PRIMARY BUTTON ═════════════════════ */
.signin-btn {
  width: 100%;
  height: 50px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(90deg, #2E5961, #3e7b86);
  color: #ffffff;
  font-family: 'ROBOTO', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
  margin-top: 6px;
  box-shadow: 0 8px 20px var(--brand-shadow);
  transition: all 0.3s ease;
}

.signin-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px var(--brand-shadow);
}

.signin-btn:active {
  transform: translateY(1px);
  box-shadow: 0 4px 10px var(--brand-shadow);
}

/* ═════════════════════ DIVIDER ═════════════════════ */
.signin-divider {
  position: relative;
  text-align: center;
  margin: 22px 0 18px;
}

.signin-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line);
}

.signin-divider span {
  position: relative;
  display: inline-block;
  padding: 0 14px;
  background: #ffffff;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.4px;
}

/* ═════════════════════ GOOGLE BUTTON ═════════════════════ */
.google-btn {
  width: 100%;
  height: 50px;
  background: #ffffff;
  border: 1px solid #ddd;
  border-radius: 999px;
  color: #1a2332;
  font-family: 'ROBOTO', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.3s ease;
}

.google-btn:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transform: translateY(-1px);
  border-color: #c8c8c8;
}

/* ═════════════════════ SWITCH HINT ═════════════════════ */
.switch-hint {
  text-align: center;
  margin-top: 18px;
  font-size: 0.88rem;
  color: var(--muted);
}

.switch-hint a {
  color: var(--brand);
  font-weight: 700;
  transition: color 0.3s ease;
}

.switch-hint a:hover { color: var(--brand2); text-decoration: underline; }

/* ═════════════════════ TERMS TEXT ═════════════════════ */
.terms-text {
  font-size: 0.75rem;
  color: #aaa;
  text-align: center;
  margin-top: 12px;
  line-height: 1.5;
}

.terms-text a {
  color: var(--brand);
  font-weight: 600;
}

.terms-text a:hover { text-decoration: underline; }

/* ═════════════════════ RESPONSIVE ═════════════════════ */
@media (max-width: 768px) {
  html, body { overflow: auto; }

  .signin-page {
    flex-direction: column;
    height: auto;
    min-height: 100vh;
  }

  .signin-left {
    display: none;
  }

  .signin-right {
    width: 100%;
    height: auto;
    min-height: 100vh;
    padding: 24px 16px;
  }

  .signin-box {
    width: 100%;
    max-width: 420px;
    padding: 28px 22px;
    border-radius: 20px;
  }

  .form-title { font-size: 1.3rem; }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (max-width: 1024px) and (min-width: 769px) {
  .signin-left { width: 40%; }
  .signin-right { width: 60%; }
  .signin-logo { width: 110px; }
  .signin-brand { font-size: 1.7rem; }
  .signin-tagline { font-size: 0.95rem; }
}

/* ═════════════════════ DARK MODE ═════════════════════ */
@media (prefers-color-scheme: dark) {
  body { background: #1a2a2d; }

  .signin-right { background: #1a2a2d; }

  .signin-box {
    background: rgba(30, 45, 48, 0.92);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  }

  .form-title { color: #ffffff; }
  .form-subtitle { color: rgba(255, 255, 255, 0.55); }

  .form-field label { color: #4a8a96; }

  .form-field input {
    background: #1f3336;
    border-color: #2E5961;
    color: #ffffff;
  }

  .form-field input::placeholder {
    color: rgba(255, 255, 255, 0.4);
  }

  .form-field input:focus {
    background: #243c40;
    border-color: #4a8a96;
    box-shadow: 0 0 0 3px rgba(74, 138, 150, 0.18);
  }

  .signin-tabs { background: #1a2a2d; }

  .tab { color: rgba(255, 255, 255, 0.5); }

  .tab-signin,
  .signin-box:has(#form-signup:target) .tab-signup {
    background: #2a4548;
    color: #ffffff;
  }
  .signin-box:has(#form-signup:target) .tab-signin {
    background: transparent;
    color: rgba(255, 255, 255, 0.5);
  }

  .signin-divider::before { background: rgba(255, 255, 255, 0.12); }
  .signin-divider span {
    background: rgba(30, 45, 48, 0.96);
    color: rgba(255, 255, 255, 0.55);
  }

  .google-btn {
    background: #1f3336;
    border-color: rgba(255, 255, 255, 0.15);
    color: #ffffff;
  }

  .switch-hint { color: rgba(255, 255, 255, 0.55); }
  .terms-text  { color: rgba(255, 255, 255, 0.4); }

  .pwd-strength-bar { background: rgba(255, 255, 255, 0.08); }

  .show-pwd-label { color: rgba(255, 255, 255, 0.5); }
  .show-pwd-label:hover { color: #ffffff; background: rgba(255,255,255,0.08); }
}

/* ─── Inline form error (shown after duplicate-key redirect) ─── */
.form-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--err);
  color: var(--err);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  text-align: center;
}