/* ============================================================
   AUTH PAGES — Split-screen layout (Login & Register)
   Inspired by: AMU dark split-screen design
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --bg-dark:     #1a1a2e;
  --bg-panel:    #16213e;
  --bg-form:     #1e2140;
  --bg-input:    rgba(255,255,255,0.06);
  --bg-input-focus: rgba(255,255,255,0.09);
  --accent:      #7b6ef6;
  --accent-hover:#9685ff;
  --accent-glow: rgba(123,110,246,0.35);
  --text-white:  #ffffff;
  --text-muted:  #8b92a9;
  --text-sub:    #c3c8d9;
  --border:      rgba(255,255,255,0.1);
  --border-focus:rgba(123,110,246,0.6);
  --danger:      #ff4d6a;
  --success:     #00c48c;
  --radius:      10px;
  --radius-btn:  8px;
  --transition:  0.2s ease;
}

body.auth-split {
  font-family: 'Inter', sans-serif;
  background: var(--bg-dark);
  min-height: 100vh;
  display: flex;
  align-items: stretch;
}

/* ---- SPLIT WRAPPER ---- */
.auth-split-wrap {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* ---- LEFT PANEL: Hero image ---- */
.auth-left {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #12101f;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.5rem;
  min-height: 100vh;
}

.auth-left-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(10,8,25,0.55) 0%, rgba(10,8,25,0.82) 70%, rgba(10,8,25,0.97) 100%),
    url('https://t3.ftcdn.net/jpg/07/22/02/96/360_F_722029604_cYQO0LFszcLrQTtdeqECGV5v0dbyDLDq.jpg') center/cover no-repeat;
  z-index: 0;
}

/* Purple/blue atmospheric gradient overlay */
.auth-left-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 30% 20%, rgba(100,80,200,0.4) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 70% 70%, rgba(60,40,160,0.3) 0%, transparent 60%);
}

/* Top-left logo/back button */
.auth-left-top {
  position: absolute;
  top: 1.75rem;
  left: 2rem;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
}

.auth-brand-logo {
  backdrop-filter: blur(0px);
  border-radius: 0px;
  padding: 0.35rem 0.75rem;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.05em;
}

.auth-back-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 6px;
  color: rgba(255,255,255,0.85);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.4rem 0.9rem;
  text-decoration: none;
  transition: all var(--transition);
}
.auth-back-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* Bottom hero text */
.auth-left-caption {
  position: relative;
  z-index: 10;
}
.auth-left-caption h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

/* Dots indicator */
.auth-dots {
  display: flex;
  gap: 0.4rem;
}
.auth-dots span {
  width: 20px; height: 3px;
  border-radius: 2px;
  background: rgba(255,255,255,0.3);
}
.auth-dots span.active {
  background: #fff;
  width: 28px;
}

/* ---- RIGHT PANEL: Form ---- */
.auth-right {
  width: 600px;
  flex-shrink: 0;
  background: #070b10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 2.74rem;
  min-height: 100vh;
  overflow-y: auto;
}

.auth-form-box {
  width: 100%;
  max-width: 560px;
}

.auth-form-box h1 {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.auth-form-sub {
  font-size: 0.855rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}
.auth-form-sub a {
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
}
.auth-form-sub a:hover { opacity: 0.85; }

/* Name row (two columns) */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* Form groups */
.form-group {
  margin-bottom: 0.9rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-sub);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-white);
  padding: 0.68rem 1rem;
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--border-focus);
  background: var(--bg-input-focus);
  box-shadow: 0 0 0 3px rgba(123,110,246,0.12);
}
.form-control::placeholder { color: var(--text-muted); }

/* Password wrapper with eye icon */
.input-wrap {
  position: relative;
}
.input-wrap .form-control { padding-right: 2.5rem; }
.input-wrap .eye-toggle {
  position: absolute;
  right: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  font-size: 1rem;
  line-height: 1;
}
.input-wrap .eye-toggle:hover { color: var(--text-sub); }

/* Phone prefix + input */
.phone-wrap {
  display: flex;
  gap: 0;
}
.phone-prefix {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: var(--radius) 0 0 var(--radius);
  color: var(--text-sub);
  padding: 0.68rem 0.85rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
  font-family: inherit;
}
.phone-wrap .form-control {
  border-radius: 0 var(--radius) var(--radius) 0;
  border-left: 1px solid rgba(255,255,255,0.05);
}
.phone-wrap .form-control:focus {
  border-color: var(--border-focus);
  border-left-color: var(--border-focus);
}

/* Terms checkbox */
.terms-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 0.85rem 0 1.1rem;
}
.terms-row input[type="checkbox"] {
  margin-top: 2px;
  accent-color: var(--accent);
  width: 14px; height: 14px;
  flex-shrink: 0;
}
.terms-row label {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.terms-row label a {
  color: var(--text-sub);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Primary CTA button */
.btn-auth {
  display: block;
  width: 100%;
  padding: 0.78rem 1rem;
  background: #05956c;
  color: #fff;
  border: none;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: 0 4px 18px var(--accent-glow);
  text-align: center;
  text-decoration: none;
}
.btn-auth:hover {
  background: #05956c;
  box-shadow: 0 6px 24px rgba(123,110,246,0.5);
  transform: translateY(-1px);
}

/* Divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0;
  color: var(--text-muted);
  font-size: 0.78rem;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Social buttons */
.social-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.btn-social {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.62rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  color: var(--text-sub);
  font-size: 0.82rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-social:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
}
.btn-social svg { flex-shrink: 0; }

/* Alert messages */
.alert {
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
  font-size: 0.845rem;
  margin-bottom: 1rem;
  border-left: 3px solid;
}
.alert-error   { background: rgba(255,77,106,0.12); border-color: var(--danger);  color: #ff8099; }
.alert-success { background: rgba(0,196,140,0.12);  border-color: var(--success); color: #4df0c0; }

/* ---- RESPONSIVE ---- */
@media (max-width: 820px) {
  .auth-left { display: none; }
  .auth-right {
    width: 100%;
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 400px) {
  .auth-right { padding: 1.5rem 1.2rem; }
  .form-row { grid-template-columns: 1fr; }
  .social-btns { grid-template-columns: 1fr; }
}