/* ============================================================
   Surf City Blinds — Main Stylesheet
   ============================================================
   Organised by section. All colours, sizes and spacing use
   CSS custom properties defined in :root below.
   No gradients. No carousels. Mobile-first.
   ============================================================ */


/* ============================================================
   Custom properties
   ============================================================ */

:root {
  /* Colours — TODO: Replace with designer-confirmed values once delivered */
  --color-bg-warm:    #F5F0E8;
  --color-bg-deep:    #2A2520;
  --color-bg-white:   #FFFFFF;
  --color-text:       #2A2520;
  --color-text-muted: #6B5D4F;
  --color-text-inv:   #F5F0E8;
  --color-accent:     #7A8B5C;
  --color-accent-dk:  #5C6E42;
  --color-border:     #D4C7B5;

  /* Typography — TODO: Replace with designer-confirmed typefaces once delivered */
  --font-body:    system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Font sizes */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  clamp(1.375rem, 2.5vw, 1.75rem);
  --text-3xl:  clamp(1.75rem, 3.5vw, 2.5rem);
  --text-hero: clamp(2.25rem, 5vw, 4rem);

  /* Spacing */
  --space-xs:      0.5rem;
  --space-sm:      1rem;
  --space-md:      1.5rem;
  --space-lg:      2.5rem;
  --space-xl:      4rem;
  --space-section: clamp(3.5rem, 7vw, 7rem);

  /* Layout */
  --max-width: 1200px;
  --gutter:    clamp(1rem, 4vw, 2rem);
}


/* ============================================================
   Reset / base
   ============================================================ */

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-warm);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

ul {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}


/* ============================================================
   Skip link
   ============================================================ */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--gutter);
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-accent);
  color: #fff;
  font-weight: 600;
  font-size: var(--text-sm);
}

.skip-link:focus {
  top: var(--gutter);
}


/* ============================================================
   Container
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}


/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1;
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  min-height: 44px;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-accent-dk);
  border-color: var(--color-accent-dk);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-inv);
  border-color: rgba(212, 199, 181, 0.5);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--color-border);
  background-color: rgba(212, 199, 181, 0.1);
}


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

.site-header {
  background-color: var(--color-bg-warm);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: 0.875rem;
}

.site-logo img {
  width: auto;
  height: 48px;
}

.site-nav {
  /* Horizontally scrollable on small screens — no hamburger */
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.site-nav ul {
  display: flex;
  white-space: nowrap;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  min-height: 44px;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-accent);
}


/* ============================================================
   Hero
   ============================================================ */

.hero {
  background-color: var(--color-bg-deep);
  color: var(--color-text-inv);
  padding-block: var(--space-section);
}

.hero .container {
  max-width: 860px;
}

.hero-identity {
  margin-bottom: var(--space-lg);
}

.hero-business-name {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-inv);
}

.hero-divider {
  border: none;
  border-top: 1px solid rgba(212, 199, 181, 0.35);
  margin-block: var(--space-md);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-inv);
  margin-bottom: var(--space-md);
}

.hero-tagline {
  font-size: var(--text-lg);
  color: rgba(245, 240, 232, 0.7);
  max-width: 54ch;
  margin-bottom: var(--space-lg);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

@media (min-width: 480px) {
  .hero-ctas {
    flex-wrap: nowrap;
  }
}


/* ============================================================
   Section base styles
   ============================================================ */

.section {
  padding-block: var(--space-section);
}

.section--white {
  background-color: var(--color-bg-white);
}

.section--deep {
  background-color: var(--color-bg-deep);
  color: var(--color-text-inv);
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.2;
}

.section-header .section-intro {
  margin-top: var(--space-sm);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
}

.section--deep .section-header .section-intro {
  color: rgba(245, 240, 232, 0.65);
}


/* ============================================================
   About
   ============================================================ */

.about-body {
  font-size: var(--text-lg);
  line-height: 1.75;
  max-width: 72ch;
  color: var(--color-text-muted);
}

.about-body strong {
  color: var(--color-text);
  font-weight: 600;
}

.about-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.about-stat-number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.about-stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: 0.375rem;
}


/* ============================================================
   Services
   ============================================================ */

.services-list {
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 7vw, 5.5rem);
}

.service-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.service-image {
  aspect-ratio: 4 / 3;
  background-color: var(--color-bg-warm);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.service-image svg {
  display: block;
  width: 100%;
  height: 100%;
}

.service-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-text h3 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.service-text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 46ch;
}

@media (min-width: 900px) {
  .service-row {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
  }

  /* Even rows: image moves to the right */
  .service-row:nth-child(even) .service-image {
    order: 2;
  }

  .service-row:nth-child(even) .service-text {
    order: 1;
  }
}

.brands {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.brands-label {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.brands-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.brands-list span {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-muted);
}


/* ============================================================
   Portfolio
   ============================================================ */

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.filter-btn {
  padding: 0.5rem 1.125rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  background-color: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  cursor: pointer;
  min-height: 44px;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-btn[aria-pressed="true"] {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background-color: var(--color-border);
}

@media (min-width: 600px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .portfolio-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.portfolio-item.hidden {
  display: none;
}

.portfolio-link {
  display: block;
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  background-color: var(--color-border);
}

.portfolio-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.portfolio-link:hover img,
.portfolio-link:focus-visible img {
  transform: scale(1.05);
}

.portfolio-caption {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: var(--space-sm);
  background-color: rgba(42, 37, 32, 0);
  transition: background-color 0.3s;
}

.portfolio-link:hover .portfolio-caption,
.portfolio-link:focus-visible .portfolio-caption {
  background-color: rgba(42, 37, 32, 0.6);
}

.portfolio-caption span {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  opacity: 0;
  transition: opacity 0.3s;
}

.portfolio-link:hover .portfolio-caption span,
.portfolio-link:focus-visible .portfolio-caption span {
  opacity: 1;
}

.portfolio-no-results {
  display: none;
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
  background-color: var(--color-bg-warm);
}

.portfolio-no-results.visible {
  display: block;
}


/* ============================================================
   Instagram
   ============================================================ */

.instagram-embed {
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.instagram-placeholder {
  width: 100%;
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  border: 1px dashed var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.instagram-placeholder a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}


/* ============================================================
   Contact
   ============================================================ */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-section);
}

@media (min-width: 900px) {
  .contact-layout {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: var(--space-xl);
  }
}

.contact-intro {
  font-size: var(--text-lg);
  color: rgba(245, 240, 232, 0.75);
  margin-bottom: var(--space-lg);
  max-width: 50ch;
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.contact-value a {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-inv);
  transition: color 0.2s;
}

.contact-value a:hover {
  color: var(--color-accent);
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.contact-social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(212, 199, 181, 0.2);
}

.social-link {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(245, 240, 232, 0.6);
  min-height: 44px;
  transition: color 0.2s;
}

.social-link:hover {
  color: var(--color-text-inv);
}

.service-areas {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(212, 199, 181, 0.2);
}

.service-areas-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.service-areas p {
  font-size: var(--text-sm);
  color: rgba(245, 240, 232, 0.65);
  line-height: 1.75;
}

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(245, 240, 232, 0.8);
}

.form-group input,
.form-group textarea {
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  width: 100%;
  min-height: 44px;
  appearance: none;
  -webkit-appearance: none;
  border-radius: 0;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.5;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 0;
  border-color: var(--color-accent);
}

.form-notice {
  font-size: var(--text-xs);
  color: rgba(245, 240, 232, 0.65);
  line-height: 1.5;
}

.form-field-error {
  font-size: var(--text-xs);
  color: #f87171;
  min-height: 1em;
}

.form-error-banner {
  font-size: var(--text-sm);
  color: #f87171;
}

.form-error-banner:empty {
  display: none;
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
  border-color: #f87171;
  outline-color: #f87171;
}

.form-success {
  padding: var(--space-lg);
  border: 1px solid var(--color-accent);
  color: var(--color-text-inv);
  font-size: var(--text-lg);
}

.form-success[hidden] {
  display: none;
}


/* ============================================================
   Footer
   ============================================================ */

.site-footer {
  background-color: var(--color-bg-deep);
  border-top: 1px solid rgba(212, 199, 181, 0.12);
  padding-block: var(--space-lg);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .site-footer .container {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.footer-copy {
  font-size: var(--text-sm);
  color: rgba(245, 240, 232, 0.65);
}

.footer-copy a {
  color: rgba(245, 240, 232, 0.6);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

.footer-copy a:hover {
  color: var(--color-text-inv);
}

.footer-abr {
  font-size: var(--text-xs);
  color: rgba(245, 240, 232, 0.55);
}

.footer-privacy {
  font-size: var(--text-xs);
  color: rgba(245, 240, 232, 0.35);
  line-height: 1.6;
  max-width: 70ch;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(212, 199, 181, 0.1);
}