/* ============================================================
   Shakti The Mentor — Main Stylesheet
   ============================================================ */

/* --- Google Font Import (backup fallback) --- */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@200;300;400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
  --primary: #574abe;
  --primary-container: #7064d9;
  --on-primary: #ffffff;
  --on-primary-container: #fffbff;
  --secondary: #af3011;
  --secondary-container: #ff6845;
  --on-secondary: #ffffff;
  --on-secondary-container: #631000;
  --tertiary: #476500;
  --tertiary-fixed: #c3f267;
  --tertiary-fixed-dim: #a8d54e;
  --on-tertiary-fixed: #131f00;
  --on-tertiary-fixed-variant: #364e00;
  --background: #fff8f5;
  --surface: #fff8f5;
  --surface-container: #f9ebe4;
  --surface-container-low: #fff1ea;
  --surface-container-high: #f3e5de;
  --surface-container-highest: #eee0d9;
  --surface-container-lowest: #ffffff;
  --on-surface: #211a16;
  --on-surface-variant: #474553;
  --outline: #787584;
  --outline-variant: #c8c4d5;
  --error: #ba1a1a;
  --error-container: #ffdad6;
  --on-error: #ffffff;
  --on-error-container: #93000a;
  --shadow-primary: rgba(87, 74, 190, 0.2);
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Manrope', sans-serif;
  background-color: var(--background);
  color: var(--on-surface);
  min-height: 100vh;
  margin: 0;
}

/* --- Material Symbols --- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-family: 'Material Symbols Outlined';
  font-style: normal;
  line-height: 1;
  display: inline-block;
  user-select: none;
  vertical-align: middle;
}

/* --- Sidebar Transition Logic --- */
#sidebar {
  transition: width var(--transition-base),
              padding var(--transition-base);
  overflow: hidden;
}
#main-content { transition: margin-left var(--transition-base); }
#top-app-bar { transition: left var(--transition-base), width var(--transition-base); }

.sidebar-collapsed { width: 5rem !important; padding-left: 0.75rem !important; padding-right: 0.75rem !important; }
.sidebar-collapsed .logo-text,
.sidebar-collapsed .nav-text,
.sidebar-collapsed .journey-btn-text,
.sidebar-collapsed .logo-subtext { display: none !important; }
.sidebar-collapsed .nav-item { justify-content: center !important; padding-left: 0 !important; padding-right: 0 !important; }
.sidebar-collapsed .journey-btn { width: 3.5rem !important; height: 3.5rem !important; border-radius: 9999px !important; padding: 0 !important; }
.sidebar-collapsed .logo-container { gap: 0 !important; justify-content: center !important; }
.sidebar-collapsed #collapse-btn { transform: rotate(180deg); }
.content-expanded { margin-left: 5rem !important; }
.header-expanded { left: 5rem !important; width: calc(100% - 5rem) !important; }

/* --- Toast Notification --- */
#toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--on-surface);
  color: var(--background);
  padding: 0.85rem 1.2rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  pointer-events: all;
  animation: toastIn 0.35s var(--transition-base) forwards;
  max-width: 340px;
}
.toast.toast-success { background: #176a2d; }
.toast.toast-error { background: var(--error); }
.toast.toast-info { background: var(--primary); }
.toast.toast-exit { animation: toastOut 0.3s ease forwards; }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-12px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-12px); }
}

/* --- Form Validation Styles --- */
.field-error {
  font-size: 0.75rem;
  color: var(--error);
  font-weight: 600;
  margin-top: 0.35rem;
  margin-left: 0.5rem;
  display: none;
}
.field-error.visible { display: block; }

input.input-error {
  outline: 2px solid var(--error) !important;
  outline-offset: 0;
  background-color: var(--error-container) !important;
}
input.input-success {
  outline: 2px solid var(--tertiary) !important;
  outline-offset: 0;
}

/* --- Loading Spinner --- */
.spinner {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Password Strength Bar --- */
.strength-bar {
  height: 4px;
  border-radius: 9999px;
  background: var(--surface-container-high);
  margin-top: 0.5rem;
  overflow: hidden;
}
.strength-fill {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.4s ease, background 0.4s ease;
  width: 0%;
}

/* --- Auth Modal / OTP --- */
#otp-modal {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(33,26,22,0.5);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
#otp-modal.open {
  opacity: 1;
  pointer-events: all;
}
.otp-box {
  background: white;
  border-radius: 1.5rem;
  padding: 2.5rem;
  max-width: 440px;
  width: 90vw;
  box-shadow: 0 40px 80px rgba(0,0,0,0.18);
  transform: scale(0.96);
  transition: transform 0.3s ease;
}
#otp-modal.open .otp-box { transform: scale(1); }

.otp-inputs { display: flex; gap: 0.75rem; justify-content: center; }
.otp-digit {
  width: 52px;
  height: 60px;
  border: 2px solid var(--outline-variant);
  border-radius: 0.75rem;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--on-surface);
  font-family: 'Manrope', sans-serif;
  transition: border-color var(--transition-fast);
  outline: none;
}
.otp-digit:focus { border-color: var(--primary); }

/* --- Smooth page transitions --- */
.page-content {
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- Scrollbar (webkit) --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--outline-variant); border-radius: 9999px; }

/* --- Mobile nav bottom padding --- */
@media (max-width: 768px) {
  main { padding-bottom: 5.5rem !important; }
}

/* --- Auth page specific --- */
.auth-card-glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--primary), transparent 50%, var(--secondary));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.2;
  pointer-events: none;
}

/* Glass nav effect */
.glass-nav {
  background: rgba(255, 248, 245, 0.85);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
}

/* Soft shadow utility */
.soft-shadow { box-shadow: 0 32px 64px -12px rgba(33, 26, 22, 0.08); }

/* No scrollbar utility */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }