/* ============================================
   OptAmazon Design System — Dark Adtech Theme
   ============================================ */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Font families */
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;
  --font-display: 'Inter', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ============================================
   Dark Theme (default) — Deep Navy Adtech
   ============================================ */
:root, [data-theme="dark"] {
  --color-bg:             #0a0e1a;
  --color-surface:        #0f1629;
  --color-surface-2:      #141c33;
  --color-surface-offset: #0d1220;
  --color-surface-offset-2: #1a2340;
  --color-surface-dynamic: #1e2a4a;
  --color-divider:        #1e2a4a;
  --color-border:         #243052;
  --color-border-subtle:  rgba(59, 130, 246, 0.12);

  --color-text:           #e2e8f0;
  --color-text-muted:     #94a3b8;
  --color-text-faint:     #475569;
  --color-text-inverse:   #0f172a;

  /* Primary — Electric Blue */
  --color-primary:        #3b82f6;
  --color-primary-hover:  #2563eb;
  --color-primary-active: #1d4ed8;
  --color-primary-muted:  rgba(59, 130, 246, 0.15);
  --color-primary-highlight: #1e3a5f;

  /* Accent — Cyan/Teal */
  --color-accent:         #06b6d4;
  --color-accent-hover:   #0891b2;
  --color-accent-muted:   rgba(6, 182, 212, 0.15);

  /* Success */
  --color-success:        #22c55e;
  --color-success-muted:  rgba(34, 197, 94, 0.15);

  /* Warning */
  --color-warning:        #f59e0b;

  /* Error */
  --color-error:          #ef4444;
  --color-error-muted:    rgba(239, 68, 68, 0.15);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.15);
}

/* ============================================
   Light Theme (opt-in via toggle)
   ============================================ */
[data-theme="light"] {
  --color-bg:             #f8fafc;
  --color-surface:        #ffffff;
  --color-surface-2:      #f1f5f9;
  --color-surface-offset: #e2e8f0;
  --color-surface-offset-2: #f1f5f9;
  --color-surface-dynamic: #e2e8f0;
  --color-divider:        #e2e8f0;
  --color-border:         #cbd5e1;
  --color-border-subtle:  rgba(59, 130, 246, 0.15);

  --color-text:           #0f172a;
  --color-text-muted:     #64748b;
  --color-text-faint:     #94a3b8;
  --color-text-inverse:   #f8fafc;

  --color-primary:        #2563eb;
  --color-primary-hover:  #1d4ed8;
  --color-primary-active: #1e40af;
  --color-primary-muted:  rgba(37, 99, 235, 0.08);
  --color-primary-highlight: #dbeafe;

  --color-accent:         #0891b2;
  --color-accent-hover:   #0e7490;
  --color-accent-muted:   rgba(8, 145, 178, 0.08);

  --color-success:        #16a34a;
  --color-success-muted:  rgba(22, 163, 74, 0.08);

  --color-warning:        #d97706;

  --color-error:          #dc2626;
  --color-error-muted:    rgba(220, 38, 38, 0.08);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.08);
}

/* ============================================
   Global Styles
   ============================================ */

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 1000;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  text-decoration: none;
}
.skip-link:focus { top: var(--space-4); }

/* Container */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}
.container--narrow { max-width: var(--content-narrow); }
.container--default { max-width: var(--content-default); }

/* ============================================
   Navigation
   ============================================ */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-subtle);
}
[data-theme="light"] .site-nav {
  background: rgba(248, 250, 252, 0.85);
}
.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}
.site-nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: var(--text-lg);
}
.site-nav__logo svg { flex-shrink: 0; }
.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.site-nav__links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition-interactive);
}
.site-nav__links a:hover { color: var(--color-text); }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
}
.theme-toggle:hover {
  background: var(--color-primary-muted);
  color: var(--color-primary);
  border-color: var(--color-border-subtle);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .site-nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--space-4) var(--space-6);
    gap: var(--space-4);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
  }
  .site-nav__links.active { display: flex; }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  min-height: 44px;
}
.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: var(--shadow-glow);
}
.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--secondary:hover {
  background: var(--color-primary-muted);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
  padding: var(--space-2) var(--space-4);
}
.btn--ghost:hover {
  color: var(--color-text);
  background: var(--color-primary-muted);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  padding-top: clamp(var(--space-24), 12vw, var(--space-32));
  padding-bottom: clamp(var(--space-16), 8vw, var(--space-24));
  text-align: left;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.08), transparent 70%);
  pointer-events: none;
}
.hero__content {
  max-width: 680px;
  position: relative;
  z-index: 1;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-primary-muted);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-6);
}
.hero__title {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.hero__title .gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  line-height: 1.5;
  max-width: 560px;
}
.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ============================================
   Section Styles
   ============================================ */
.section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}
.section__header {
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-12));
}
.section__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.section__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.section__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
  max-width: 560px;
}

/* ============================================
   How It Works — Steps
   ============================================ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 768px) {
  .steps-grid { grid-template-columns: 1fr; }
}
.step-card {
  position: relative;
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
}
.step-card__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: var(--color-primary-muted);
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-bottom: var(--space-4);
}
.step-card__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.step-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   Features Grid
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .features-grid { grid-template-columns: 1fr; }
}
.feature-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}
.feature-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.feature-card__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.feature-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   Security / Trust Section
   ============================================ */
.trust-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
@media (max-width: 768px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .trust-grid { grid-template-columns: 1fr; }
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
}
.trust-item__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-success);
  margin-top: 2px;
}
.trust-item__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  padding-block: var(--space-12);
  border-top: 1px solid var(--color-border-subtle);
  color: var(--color-text-muted);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-8);
}
.footer-brand {
  max-width: 300px;
}
.footer-brand__name {
  font-weight: 700;
  color: var(--color-text);
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}
.footer-brand__company {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}
.footer-brand__email a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}
.footer-brand__email a:hover { color: var(--color-primary); }
.footer-links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-bottom a {
  color: var(--color-text-faint);
  text-decoration: none;
}
.footer-bottom a:hover { color: var(--color-primary); }

@media (max-width: 600px) {
  .footer-inner { flex-direction: column; }
  .footer-links { flex-direction: column; gap: var(--space-3); }
}

/* ============================================
   Legal / Content Pages
   ============================================ */
.legal-page {
  padding-top: clamp(var(--space-20), 10vw, var(--space-32));
  padding-bottom: var(--space-16);
}
.legal-page h1 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.legal-page .effective-date {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  margin-bottom: var(--space-8);
}
.legal-page h2 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}
.legal-page h3 {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}
.legal-page p,
.legal-page li {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}
.legal-page ul {
  list-style: none;
  padding-left: var(--space-4);
}
.legal-page ul li {
  position: relative;
  padding-left: var(--space-4);
}
.legal-page ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-text-faint);
}
.legal-page a {
  color: var(--color-primary);
  text-decoration: none;
}
.legal-page a:hover { text-decoration: underline; }

/* ============================================
   App / Login Styles
   ============================================ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: var(--space-6);
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.login-card__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  color: var(--color-text);
  font-weight: 700;
  font-size: var(--text-lg);
}
.login-card__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}
.form-group {
  margin-bottom: var(--space-4);
}
.form-group label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.form-group input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  min-height: 44px;
}
.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-muted);
}
.form-group input::placeholder { color: var(--color-text-faint); }
.login-error {
  display: none;
  padding: var(--space-3) var(--space-4);
  background: var(--color-error-muted);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}
.login-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-4);
  text-align: center;
}

/* ============================================
   Dashboard Layout
   ============================================ */
.dashboard {
  display: none;
  min-height: 100dvh;
}
.dashboard.active { display: flex; }
.login-view.hidden { display: none; }

/* Sidebar */
.sidebar {
  width: 240px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
}
.sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
  padding: var(--space-3) var(--space-3);
  margin-bottom: var(--space-4);
  text-decoration: none;
}
.sidebar__nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.sidebar__link:hover {
  background: var(--color-primary-muted);
  color: var(--color-text);
}
.sidebar__link.active {
  background: var(--color-primary-muted);
  color: var(--color-primary);
}
.sidebar__link svg { flex-shrink: 0; }
.sidebar__footer {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
}
.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  font-size: var(--text-sm);
}
.sidebar__user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-primary-muted);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 700;
}
.sidebar__user-info {
  flex: 1;
  min-width: 0;
}
.sidebar__user-name {
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar__user-role {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* Dashboard Main */
.dashboard-main {
  flex: 1;
  margin-left: 240px;
  padding: var(--space-6);
  min-height: 100dvh;
}
.dashboard-header {
  margin-bottom: var(--space-6);
}
.dashboard-header h1 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}
.dashboard-header p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
@media (max-width: 900px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
}
.kpi-card {
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
}
.kpi-card__label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}
.kpi-card__value {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}
.kpi-card__change {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-top: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}
.kpi-card__change--up {
  color: var(--color-success);
  background: var(--color-success-muted);
}
.kpi-card__change--down {
  color: var(--color-error);
  background: var(--color-error-muted);
}

/* Placeholder content area */
.dashboard-placeholder {
  padding: var(--space-16);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--color-text-faint);
}
.dashboard-placeholder h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
}
.dashboard-placeholder p {
  font-size: var(--text-sm);
  max-width: none;
}

/* Mobile sidebar */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .dashboard-main { margin-left: 0; }
  .mobile-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border-subtle);
    margin: calc(-1 * var(--space-6));
    margin-bottom: var(--space-6);
  }
}
@media (min-width: 769px) {
  .mobile-header { display: none; }
}

/* ============================================
   Data Deletion Form
   ============================================ */
.deletion-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-top: var(--space-6);
}
.deletion-form .form-group { margin-bottom: var(--space-4); }
.deletion-form .btn { width: 100%; }

/* ============================================
   Scroll Animations
   JS adds .js-fade class to <html> when observer is ready.
   Without JS, content stays fully visible.
   ============================================ */
.js-fade .fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js-fade .fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}