/* app.css — Stemara App Shell (logged-in product area) */
/* Distinct product-shell identity layered onto the Stemara brand:      */
/* navy + gold accents, off-white surfaces, calm and premium feel.      */
/* Reuses existing spacing/radius tokens + fonts from style.css/base.css */

:root {
  /* Off-white surfaces */
  --app-bg:            #f7f5f0;
  --app-surface:       #ffffff;
  --app-surface-2:     #fbfaf7;
  --app-surface-sunken:#f0ede5;
  --app-divider:       #e3ddd0;
  --app-border:        #d8d0bd;

  /* Navy */
  --app-navy:          #0f2647;
  --app-navy-2:        #16335e;
  --app-navy-hover:    #1c3f70;
  --app-navy-tint:     #eaeef4;

  /* Text */
  --app-text:          #14202e;
  --app-text-muted:    #5b6572;
  --app-text-faint:    #9aa2ac;
  --app-text-inverse:  #f7f5f0;

  /* Gold accent (sparingly — highlights, focus states, key CTAs) */
  --app-gold:          #b3872f;
  --app-gold-hover:    #9c7527;
  --app-gold-tint:     #f6ecd6;

  /* Functional */
  --app-success:       #2d7a4f;
  --app-success-tint:  #e5f3ea;
  --app-error:         #b3402f;
  --app-error-tint:    #fbe9e5;

  /* Shadows */
  --app-shadow-sm: 0 1px 2px rgba(15, 38, 71, 0.06);
  --app-shadow-md: 0 4px 20px rgba(15, 38, 71, 0.08);
  --app-shadow-lg: 0 16px 48px rgba(15, 38, 71, 0.12);
}

/* ═══ Base ═══ */
.app-shell, .auth-shell {
  background: var(--app-bg);
  color: var(--app-text);
  min-height: 100dvh;
  font-family: var(--font-body);
}

.app-shell *, .auth-shell * { box-sizing: border-box; }

.app-shell a, .auth-shell a { color: inherit; text-decoration: none; }

.app-shell button, .auth-shell button { font-family: inherit; }

/* ═══ Auth pages (login / signup) ═══ */
.auth-shell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.auth-topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-8);
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--app-navy);
}

.auth-topbar-link {
  font-size: var(--text-sm);
  color: var(--app-text-muted);
  font-weight: 500;
}
.auth-topbar-link:hover { color: var(--app-navy); }

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--app-surface);
  border: 1px solid var(--app-divider);
  border-radius: var(--radius-xl);
  box-shadow: var(--app-shadow-md);
  padding: var(--space-8);
}

.auth-card h1 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--app-navy);
  margin-bottom: var(--space-2);
}

.auth-card p.auth-subtitle {
  color: var(--app-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
  max-width: none;
}

.auth-field {
  margin-bottom: var(--space-4);
}

.auth-field label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--app-text);
  margin-bottom: var(--space-2);
}

.auth-field input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--app-border);
  border-radius: var(--radius-md);
  background: var(--app-surface-2);
  color: var(--app-text);
  font-size: var(--text-sm);
}

.auth-field input:focus-visible {
  outline: 2px solid var(--app-gold);
  outline-offset: 1px;
  border-color: var(--app-gold);
}

.auth-submit {
  width: 100%;
  padding: 0.8rem;
  border-radius: var(--radius-md);
  background: var(--app-navy);
  color: var(--app-text-inverse);
  font-weight: 600;
  font-size: var(--text-sm);
  margin-top: var(--space-2);
  transition: background var(--transition-interactive);
}
.auth-submit:hover { background: var(--app-navy-hover); }
.auth-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.auth-switch {
  text-align: center;
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--app-text-muted);
}
.auth-switch a { color: var(--app-navy); font-weight: 600; }
.auth-switch a:hover { color: var(--app-gold); }

.auth-error {
  background: var(--app-error-tint);
  color: var(--app-error);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  display: none;
}
.auth-error.visible { display: block; }

.auth-loading-gate {
  position: fixed;
  inset: 0;
  background: var(--app-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.2s ease;
}
.auth-loading-gate.hidden { opacity: 0; pointer-events: none; }
.auth-spinner {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid var(--app-divider);
  border-top-color: var(--app-navy);
  animation: app-spin 0.7s linear infinite;
}
@keyframes app-spin { to { transform: rotate(360deg); } }

/* ═══ App shell (protected area) ═══ */
.app-shell {
  display: flex;
  min-height: 100dvh;
}

.app-sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--app-navy);
  color: var(--app-text-inverse);
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--space-4);
  position: sticky;
  top: 0;
  height: 100dvh;
}

.app-sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: #ffffff;
  padding: 0 var(--space-2);
  margin-bottom: var(--space-8);
}

.app-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1;
}

.app-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.65rem var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(247, 245, 240, 0.7);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}

.app-nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}

.app-nav-link.active {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.app-nav-link.active .app-nav-dot {
  background: var(--app-gold);
}

.app-nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.app-nav-icon svg { width: 100%; height: 100%; }

.app-sidebar-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-4);
  margin-top: var(--space-4);
}

.app-logout-btn {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: 0.65rem var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(247, 245, 240, 0.7);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.app-logout-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-8);
  border-bottom: 1px solid var(--app-divider);
  background: var(--app-surface);
}

.app-header h1 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--app-navy);
}

.app-header-meta {
  font-size: var(--text-xs);
  color: var(--app-text-muted);
  margin-top: 2px;
}

.app-user-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--app-text-muted);
  background: var(--app-surface-sunken);
  border-radius: var(--radius-full);
  padding: 0.4rem 0.85rem;
}

.app-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--app-gold-tint);
  color: var(--app-gold-hover);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.app-content {
  flex: 1;
  padding: var(--space-8);
  max-width: 1040px;
  width: 100%;
}

.app-mobile-topbar {
  display: none;
}

/* ═══ Content components ═══ */
.app-card {
  background: var(--app-surface);
  border: 1px solid var(--app-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--app-shadow-sm);
}

.app-welcome-card {
  background: var(--app-surface);
  border: 1px solid var(--app-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--app-shadow-sm);
  margin-bottom: var(--space-6);
}

.app-welcome-card h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--app-navy);
  margin-bottom: var(--space-2);
}

.app-welcome-card p {
  color: var(--app-text-muted);
  font-size: var(--text-sm);
  max-width: 60ch;
}

.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--app-gold-hover);
  background: var(--app-gold-tint);
  border-radius: var(--radius-full);
  padding: 0.3rem 0.75rem;
  margin-bottom: var(--space-4);
}

.app-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--space-8);
  border: 1.5px dashed var(--app-border);
  border-radius: var(--radius-xl);
  background: var(--app-surface-2);
}

.app-empty-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--app-navy-tint);
  color: var(--app-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.app-empty-icon svg { width: 24px; height: 24px; }

.app-empty-state h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--app-navy);
  margin-bottom: var(--space-2);
}

.app-empty-state p {
  color: var(--app-text-muted);
  font-size: var(--text-sm);
  max-width: 40ch;
  margin-bottom: var(--space-6);
}

.app-shell a.app-btn-primary,
.app-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-md);
  background: var(--app-navy);
  color: #ffffff !important;
  font-weight: 600;
  font-size: var(--text-sm);
  transition: background var(--transition-interactive);
}
.app-btn-primary:hover { background: var(--app-navy-hover); }
.app-btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.app-shell a.app-btn-secondary,
.app-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--app-border);
  background: var(--app-surface);
  color: var(--app-text) !important;
  font-weight: 600;
  font-size: var(--text-sm);
  transition: border-color var(--transition-interactive), background var(--transition-interactive);
}
.app-btn-secondary:hover { border-color: var(--app-navy); background: var(--app-navy-tint); }

.app-page-intro {
  margin-bottom: var(--space-6);
  max-width: 60ch;
}
.app-page-intro p {
  color: var(--app-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

/* ═══ Mobile ═══ */
@media (max-width: 860px) {
  .app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100dvh;
    z-index: 60;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    box-shadow: var(--app-shadow-lg);
  }
  .app-sidebar.open { transform: translateX(0); }

  .app-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 38, 71, 0.35);
    z-index: 50;
  }
  .app-sidebar-overlay.visible { display: block; }

  .app-mobile-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    background: var(--app-navy);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 40;
  }

  .app-hamburger {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border-radius: var(--radius-md);
  }
  .app-hamburger:hover { background: rgba(255,255,255,0.1); }

  .app-header {
    padding: var(--space-4) var(--space-5);
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .app-content {
    padding: var(--space-5);
  }
}