/* =========================================================
   Site Base CSS
   ASP.NET Core Razor Pages frontend starter

   Purpose:
   - Provide a clean base for business websites, boutique hotels,
     cafe/chocolate websites and small admin-supported projects.
   - Use with DesignSystem/design-tokens.css.
   - Adapt values to the current brand and existing project CSS.
========================================================= */

/* =========================================================
   1. Base Reset
========================================================= */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(
    --font-body,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif
  );
  font-size: var(--text-base, 1rem);
  line-height: var(--line-normal, 1.6);
  color: var(--color-text, #1f2933);
  background: var(--color-background, #f7f8fa);
  text-rendering: optimizeLegibility;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

/* =========================================================
   2. Typography Base
========================================================= */

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  font-family: var(--font-heading, inherit);
  color: var(--color-text, #1f2933);
  line-height: var(--line-tight, 1.15);
}

h1 {
  font-size: clamp(2.5rem, 6vw, var(--text-5xl, 4rem));
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(2rem, 4vw, var(--text-4xl, 3.25rem));
  letter-spacing: -0.035em;
}

h3 {
  font-size: clamp(1.5rem, 2.5vw, var(--text-2xl, 2rem));
  letter-spacing: -0.025em;
}

h4 {
  font-size: var(--text-xl, 1.5rem);
}

h5 {
  font-size: var(--text-lg, 1.25rem);
}

h6 {
  font-size: var(--text-md, 1.125rem);
}

p {
  margin-top: 0;
  margin-bottom: var(--space-4, 1rem);
  color: var(--color-text-muted, #667085);
}

strong {
  color: var(--color-text, #1f2933);
  font-weight: var(--weight-semibold, 600);
}

small {
  font-size: var(--text-sm, 0.875rem);
}

/* =========================================================
   3. Links
========================================================= */

a {
  color: var(--color-primary, #1f3a5f);
  text-decoration: none;
  transition: color var(--transition-base, 220ms ease);
}

a:hover {
  color: var(--color-primary-dark, #142740);
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid
    color-mix(in srgb, var(--color-primary, #1f3a5f) 35%, transparent);
  outline-offset: 3px;
}

/* =========================================================
   4. Layout Helpers
========================================================= */

.container-custom {
  width: min(var(--container-lg, 1120px), calc(100% - 2rem));
  margin-inline: auto;
}

.container-wide {
  width: min(var(--container-xl, 1280px), calc(100% - 2rem));
  margin-inline: auto;
}

.container-narrow {
  width: min(var(--container-sm, 760px), calc(100% - 2rem));
  margin-inline: auto;
}

.section {
  padding-block: var(--section-padding-md, clamp(3.5rem, 7vw, 6rem));
}

.section-sm {
  padding-block: var(--section-padding-sm, clamp(2.5rem, 5vw, 4rem));
}

.section-lg {
  padding-block: var(--section-padding-lg, clamp(5rem, 9vw, 8rem));
}

.section-header {
  max-width: 720px;
  margin-bottom: var(--space-6, 2rem);
}

.section-header.center {
  margin-inline: auto;
  text-align: center;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2, 0.5rem);
  margin-bottom: var(--space-3, 0.75rem);
  font-size: var(--text-xs, 0.75rem);
  font-weight: var(--weight-bold, 700);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary, #1f3a5f);
}

.section-title {
  margin: 0;
  font-family: var(--font-heading, inherit);
  font-size: clamp(2rem, 4vw, var(--text-4xl, 3.25rem));
  line-height: var(--line-tight, 1.15);
  color: var(--color-text, #1f2933);
}

.section-description {
  max-width: 680px;
  margin-top: var(--space-3, 0.75rem);
  margin-bottom: 0;
  font-size: var(--text-md, 1.125rem);
  line-height: var(--line-relaxed, 1.75);
  color: var(--color-text-muted, #667085);
}

.section-header.center .section-description {
  margin-inline: auto;
}

/* =========================================================
   5. Grid Helpers
========================================================= */

.grid {
  display: grid;
  gap: var(--space-5, 1.5rem);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.auto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-5, 1.5rem);
}

/* =========================================================
   6. Surface Helpers
========================================================= */

.surface-card {
  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border, #e4e7ec);
  border-radius: var(--radius-xl, 1.5rem);
  box-shadow: var(--shadow-sm, 0 4px 12px rgba(16, 24, 40, 0.08));
}

.surface-soft {
  background: var(--color-surface-soft, #f9fafb);
}

.text-muted-custom {
  color: var(--color-text-muted, #667085);
}

.text-primary-custom {
  color: var(--color-primary, #1f3a5f);
}

/* =========================================================
   7. Simple Utility Classes
========================================================= */

.d-flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.d-flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4, 1rem);
}

.stack-sm > * + * {
  margin-top: var(--space-3, 0.75rem);
}

.stack-md > * + * {
  margin-top: var(--space-4, 1rem);
}

.stack-lg > * + * {
  margin-top: var(--space-6, 2rem);
}

.rounded-soft {
  border-radius: var(--radius-lg, 1rem);
}

.rounded-large {
  border-radius: var(--radius-2xl, 2rem);
}

.shadow-soft {
  box-shadow: var(--shadow-sm, 0 4px 12px rgba(16, 24, 40, 0.08));
}

.shadow-premium {
  box-shadow: var(--shadow-md, 0 12px 28px rgba(16, 24, 40, 0.1));
}

/* =========================================================
   8. Images
========================================================= */

.image-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-rounded {
  border-radius: var(--radius-xl, 1.5rem);
}

.image-frame {
  overflow: hidden;
  border-radius: var(--radius-2xl, 2rem);
  background: var(--color-surface, #ffffff);
  box-shadow: var(--shadow-md, 0 12px 28px rgba(16, 24, 40, 0.1));
}

/* =========================================================
   9. Empty State
========================================================= */

.empty-state {
  padding: var(--space-7, 3rem);
  text-align: center;
  background: var(--color-surface, #ffffff);
  border: 1px dashed var(--color-border-strong, #d0d5dd);
  border-radius: var(--radius-xl, 1.5rem);
}

.empty-state-title {
  margin-bottom: var(--space-2, 0.5rem);
  font-size: var(--text-xl, 1.5rem);
  font-weight: var(--weight-semibold, 600);
  color: var(--color-text, #1f2933);
}

.empty-state-text {
  margin-bottom: 0;
  color: var(--color-text-muted, #667085);
}

/* =========================================================
   10. Alerts
========================================================= */

.alert-custom {
  padding: var(--space-4, 1rem);
  border-radius: var(--radius-lg, 1rem);
  border: 1px solid transparent;
  font-size: var(--text-sm, 0.875rem);
}

.alert-success-custom {
  color: var(--color-success, #2f7d4f);
  background: var(--color-success-light, #e7f6ed);
  border-color: color-mix(
    in srgb,
    var(--color-success, #2f7d4f) 20%,
    transparent
  );
}

.alert-warning-custom {
  color: var(--color-warning, #b7791f);
  background: var(--color-warning-light, #fff4df);
  border-color: color-mix(
    in srgb,
    var(--color-warning, #b7791f) 20%,
    transparent
  );
}

.alert-danger-custom {
  color: var(--color-danger, #b42318);
  background: var(--color-danger-light, #feeceb);
  border-color: color-mix(
    in srgb,
    var(--color-danger, #b42318) 20%,
    transparent
  );
}

.alert-info-custom {
  color: var(--color-info, #2563eb);
  background: var(--color-info-light, #eaf1ff);
  border-color: color-mix(in srgb, var(--color-info, #2563eb) 20%, transparent);
}

/* =========================================================
   11. Responsive Rules
========================================================= */

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .section-header {
    margin-bottom: var(--space-5, 1.5rem);
  }

  .d-flex-between {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .container-custom,
  .container-wide,
  .container-narrow {
    width: min(100% - 1.25rem, var(--container-lg, 1120px));
  }

  .empty-state {
    padding: var(--space-5, 1.5rem);
  }
}

/* =========================================================
   12. Reduced Motion
========================================================= */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}