/* ==========================================
   PSYXIUM LOGIN — CSS Variables (Theming)
   ========================================== */

:root {
  --bg: #faf5f0;
  --bg-gradient-1: #fdf0e6;
  --bg-gradient-2: #f5e6da;
  --card-bg: rgba(255, 253, 250, 0.85);
  --card-border: rgba(210, 180, 155, 0.25);
  --card-shadow: rgba(180, 140, 100, 0.08);
  --card-shadow-hover: rgba(180, 140, 100, 0.15);
  --fg: #3d2e22;
  --fg-muted: #8a7568;
  --heading: #7c3a2e;
  --primary: #d4845a;
  --primary-hover: #c0724a;
  --primary-active: #ab633f;
  --primary-fg: #fff;
  --input-bg: #fffcfa;
  --input-border: #e0cfc3;
  --input-focus-border: #d4845a;
  --input-focus-glow: rgba(212, 132, 90, 0.2);
  --divider: rgba(212, 160, 120, 0.3);
  --trust-color: #9a6e4e;
  --link-color: #b34a3a;
  --link-hover: #8c3529;
  --toggle-bg: rgba(0,0,0,0.06);
  --toggle-fg: #7c5a3e;
  --subtle-link: #a08070;
}

html.dark {
  --bg: #0f172a;
  --bg-gradient-1: #111827;
  --bg-gradient-2: #1a1020;
  --card-bg: rgba(31, 41, 55, 0.9);
  --card-border: rgba(255, 255, 255, 0.06);
  --card-shadow: rgba(0, 0, 0, 0.3);
  --card-shadow-hover: rgba(0, 0, 0, 0.45);
  --fg: #e5e7eb;
  --fg-muted: #9ca3af;
  --heading: #e8a87c;
  --primary: #d4845a;
  --primary-hover: #e0956b;
  --primary-active: #c87a50;
  --primary-fg: #0f172a;
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.1);
  --input-focus-border: #d4845a;
  --input-focus-glow: rgba(212, 132, 90, 0.25);
  --divider: rgba(255, 255, 255, 0.06);
  --trust-color: #d4a87c;
  --link-color: #e8a87c;
  --link-hover: #f0c0a0;
  --toggle-bg: rgba(255,255,255,0.08);
  --toggle-fg: #e5e7eb;
  --subtle-link: #9ca3af;
}

/* ==========================================
   Reset & Base
   ========================================== */

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

body.login-page {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--fg);
  min-height: 100vh;
  background: linear-gradient(145deg, var(--bg-gradient-1), var(--bg), var(--bg-gradient-2));
  background-attachment: fixed;
  transition: background 0.5s ease, color 0.5s ease;
}

/* ==========================================
   Header
   ========================================== */

.login-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 40px 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.login-header .logo {
  height: 44px;
  width: auto;
}

.login-header h1 {
  font-size: 1.8rem;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: var(--toggle-bg);
  color: var(--toggle-fg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background: var(--input-focus-glow);
}

.toggle-icon.sun { display: none; }
.toggle-icon.moon { display: inline; }
html.dark .toggle-icon.sun { display: inline; }
html.dark .toggle-icon.moon { display: none; }

/* Home button */
.home-button {
  display: inline-block;
  padding: 9px 20px;
  border-radius: 10px;
  background: var(--primary);
  color: var(--primary-fg);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: all 0.3s ease;
}

.home-button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--card-shadow);
}

/* ==========================================
   Trust Bar
   ========================================== */

.trust-bar {
  display: flex;
  justify-content: center;
  gap: 32px;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto 8px;
  flex-wrap: wrap;
}

.trust-item {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--trust-color);
  letter-spacing: 0.02em;
}

/* ==========================================
   Split Login Layout
   ========================================== */

.split-login {
  display: flex;
  min-height: calc(100vh - 180px);
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
  gap: 0;
  align-items: stretch;
}

/* Cards (each half) */
.login-half {
  flex: 1;
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  box-shadow: 0 4px 24px var(--card-shadow);
  transition: all 0.4s ease;
}

.login-half:hover {
  box-shadow: 0 8px 32px var(--card-shadow-hover);
  transform: translateY(-2px);
}

.login-half.left {
  border-radius: 16px 0 0 16px;
}

.login-half.right {
  border-radius: 0 16px 16px 0;
}

/* Divider */
.divider-line {
  width: 1px;
  background: linear-gradient(to bottom, transparent 10%, var(--divider) 40%, var(--divider) 60%, transparent 90%);
  align-self: stretch;
  flex-shrink: 0;
}

/* ==========================================
   Headings & Subtitles
   ========================================== */

.login-half h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 8px;
  text-align: center;
  color: var(--heading);
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 0.875rem;
  color: var(--fg-muted);
  text-align: center;
  margin-bottom: 28px;
}

/* ==========================================
   Forms
   ========================================== */

form.register-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  max-width: 320px;
}

.input-wrap {
  position: relative;
  width: 100%;
}

form.register-form input {
  width: 100%;
  padding: 13px 16px;
  font-size: 0.9rem;
  font-family: inherit;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--fg);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  outline: none;
}

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

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

form.register-form input:hover {
  border-color: var(--primary);
}

/* Password toggle */
.password-wrap {
  position: relative;
}

.pw-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--fg-muted);
  font-size: 0.78rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.pw-toggle:hover {
  color: var(--primary);
  background: var(--input-focus-glow);
}

.password-wrap input {
  padding-right: 72px;
}

/* Submit buttons */
form.register-form button[type="submit"] {
  width: 100%;
  padding: 13px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--primary-fg);
  background: var(--primary);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  margin-top: 4px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px var(--card-shadow);
}

form.register-form button[type="submit"]:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 16px var(--card-shadow-hover);
  transform: translateY(-1px);
}

form.register-form button[type="submit"]:active {
  background: var(--primary-active);
  transform: translateY(0) scale(0.98);
}

form.register-form button[type="submit"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

/* ==========================================
   Helper Links
   ========================================== */

.helper-link {
  margin-top: 12px;
  font-size: 0.85rem;
  text-align: center;
  color: var(--fg-muted);
}

.helper-link:first-of-type {
  margin-top: 20px;
}

.helper-link a {
  color: var(--link-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.helper-link a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.helper-link a.subtle-link {
  color: var(--subtle-link);
  font-weight: 500;
}

.helper-link a.subtle-link:hover {
  color: var(--link-color);
}

/* ==========================================
   Focus Outlines (Accessibility)
   ========================================== */

.theme-toggle:focus-visible,
.home-button:focus-visible,
form.register-form button:focus-visible,
.pw-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

/* ==========================================
   Responsive
   ========================================== */

@media (max-width: 820px) {
  .split-login {
    flex-direction: column;
    max-width: 480px;
    gap: 20px;
    padding: 16px;
  }

  .divider-line {
    display: none;
  }

  .login-half.left,
  .login-half.right {
    border-radius: 16px;
    padding: 36px 28px;
  }

  .login-header {
    padding: 20px 20px 12px;
  }

  .login-header h1 {
    font-size: 1.5rem;
  }

  .trust-bar {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .login-half {
    padding: 28px 20px;
  }

  .login-half h2 {
    font-size: 1.3rem;
  }

  form.register-form input,
  form.register-form button[type="submit"] {
    font-size: 0.85rem;
    padding: 12px 14px;
  }

  .login-header h1 {
    font-size: 1.3rem;
  }

  .login-header .logo {
    height: 36px;
  }

  .home-button {
    padding: 7px 14px;
    font-size: 0.8rem;
  }

  .trust-item {
    font-size: 0.72rem;
  }
}