@layer reset, tokens, base, layout, components, utilities;

/* ==========================================================================
   PAGE SHELL, SECTION BANDS & CONTAINER-DRIVEN GRIDS
   ========================================================================== */
@layer layout {
  /* ========================================================================
     PRIVATE STUDIO PASSWORD GATE SHELL
     ======================================================================== */
  .auth-gate {
    min-block-size: 100dvh;
    display: grid;
    place-items: safe center;
    padding-block: clamp(1.5rem, 4dvh, 3.5rem);
    padding-inline: var(--container-gutter);
    background-color: var(--surface-putty-soft);
    background-image:
      radial-gradient(
        circle at 50% 24%,
        color-mix(in oklab, var(--surface-canvas) 84%, transparent) 0%,
        transparent 68%
      ),
      linear-gradient(
        180deg,
        var(--surface-canvas) 0%,
        var(--surface-putty-soft) 100%
      );
  }

  .container {
    inline-size: min(100% - (var(--container-gutter) * 2), var(--container-max));
    margin-inline: auto;
    container: section-box / inline-size;
  }

  .hero-section,
  .section {
    container: section-shell / inline-size;
  }

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

  /* Alternating architectural surface bands (alabaster <-> warm stone-linen) */
  .portfolio-section {
    background-color: var(--surface-canvas);
    border-block-start: 1px solid var(--border-hairline);
  }

  .services-section {
    background-color: var(--surface-subtle);
    border-block: 1px solid var(--border-hairline);
  }

  .process-section {
    background-color: var(--surface-putty-soft);
    border-block-end: 1px solid var(--border-hairline);
  }

  .about-section {
    background-color: var(--surface-canvas);
  }

  .sources-section {
    background-color: var(--surface-subtle);
    border-block: 1px solid var(--border-hairline);
  }

  .inquire-section {
    background-color: var(--surface-canvas);
  }

  /* Section Header Block */
  .section-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    max-inline-size: 46rem;
    margin-block-end: clamp(2.25rem, 4vw, 3.5rem);
  }

  /* ========================================================================
     STICKY SITE HEADER & PRIMARY NAVIGATION
     ======================================================================== */
  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 40;
    background-color: color-mix(in oklab, var(--surface-canvas) 88%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-block-end: 1px solid transparent;
    transition:
      background-color var(--duration-base) var(--ease-editorial),
      border-color var(--duration-base) var(--ease-editorial),
      box-shadow var(--duration-base) var(--ease-editorial);

    &[data-scrolled="true"] {
      background-color: color-mix(in oklab, var(--surface-canvas) 96%, var(--surface-elevated));
      border-block-end-color: var(--border-hairline);
      box-shadow: var(--shadow-sm);
    }
  }

  .header-inner {
    display: flex;
    align-items: safe center;
    justify-content: space-between;
    gap: 1.5rem;
    min-block-size: var(--header-height);
    padding-block: 0.625rem;
  }

  .nav-links {
    display: none;
    align-items: safe center;
    gap: clamp(1.25rem, 2.2vw, 2.25rem);
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  @media (min-width: 56rem) {
    .nav-links {
      display: flex;
    }

    .mobile-menu-btn {
      display: none;
    }
  }

  /* ========================================================================
     HERO EDITORIAL SPREAD
     ======================================================================== */
  .hero-section {
    padding-block: clamp(2.25rem, 4.5vw, 4.5rem) clamp(3.75rem, 6vw, 6.25rem);
  }

  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(2.25rem, 5vw, 4.5rem);
    align-items: center;
  }

  @media (min-width: 56rem) {
    .hero-grid {
      grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 56rem) {
      .hero-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-shell (inline-size >= 56rem) {
      .hero-grid {
        grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
      }
    }
  }

  .hero-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: clamp(1.15rem, 2vw, 1.5rem);
  }

  .hero-media {
    inline-size: 100%;
    max-inline-size: 35rem;
    margin-inline: auto;
  }

  /* ========================================================================
     PORTFOLIO FILTER BAR & GALLERY GRID
     ======================================================================== */
  .filter-bar {
    display: flex;
    flex-wrap: wrap;
    flex-wrap: balance;
    align-items: safe center;
    gap: 0.625rem;
    margin-block-end: clamp(2rem, 3.5vw, 3rem);
  }

  .portfolio-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    column-gap: clamp(1.25rem, 2.5vw, 2.125rem);
    row-gap: clamp(2.25rem, 4vw, 3.25rem);
    align-items: start;
  }

  @media (min-width: 38rem) {
    .portfolio-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (min-width: 62rem) {
    .portfolio-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 38rem) {
      .portfolio-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-box (inline-size >= 34rem) {
      .portfolio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @container section-box (inline-size >= 56rem) {
      .portfolio-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }
    }
  }

  /* ========================================================================
     SERVICES 4-PILLAR EDITORIAL GRID
     ======================================================================== */
  .services-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1.25rem, 2.2vw, 1.75rem);
  }

  @media (min-width: 40rem) {
    .services-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (min-width: 68rem) {
    .services-grid {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 40rem) {
      .services-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-box (inline-size >= 36rem) {
      .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @container section-box (inline-size >= 64rem) {
      .services-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
      }
    }
  }

  /* ========================================================================
     DESIGN PROCESS 8-PHASE EDITORIAL GRID & GUIDE BANNER
     ======================================================================== */
  .process-intro-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
    margin-block-end: clamp(2.25rem, 4vw, 3.5rem);

    & .section-header {
      margin-block-end: 0;
    }
  }

  .process-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1.15rem, 2vw, 1.5rem);
  }

  @media (min-width: 40rem) {
    .process-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (min-width: 68rem) {
    .process-grid {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 40rem) {
      .process-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-box (inline-size >= 36rem) {
      .process-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @container section-box (inline-size >= 64rem) {
      .process-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
      }
    }
  }

  .process-guide-banner {
    margin-block-start: clamp(2.25rem, 4vw, 3.25rem);
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 2.75rem);
    align-items: center;
  }

  @media (min-width: 52rem) {
    .process-guide-banner:not(:has(> :only-child)) {
      grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 52rem) {
      .process-guide-banner:not(:has(> :only-child)) {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-box (inline-size >= 48rem) {
      .process-guide-banner:not(:has(> :only-child)) {
        grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
      }
    }
  }

  /* ========================================================================
     ABOUT STUDIO SPREAD
     ======================================================================== */
  .about-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 5rem);
    align-items: center;
  }

  @media (min-width: 56rem) {
    .about-layout {
      grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 56rem) {
      .about-layout {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-shell (inline-size >= 56rem) {
      .about-layout {
        grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
      }
    }
  }

  /* ========================================================================
     CURATED SOURCES (SHOPMY) GRID
     ======================================================================== */
  .sources-section .section-header:has(+ .sources-header-actions) {
    margin-block-end: 1.5rem;
  }

  .sources-header-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: safe center;
    gap: 0.875rem;
    margin-block-end: clamp(2.25rem, 4vw, 3.25rem);
  }

  .sources-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1.25rem, 2.5vw, 2rem);
  }

  @media (min-width: 38rem) {
    .sources-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (min-width: 62rem) {
    .sources-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 38rem) {
      .sources-grid {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-box (inline-size >= 34rem) {
      .sources-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }
    }

    @container section-box (inline-size >= 56rem) {
      .sources-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }
    }
  }

  /* ========================================================================
     PROJECT INQUIRY SPLIT LAYOUT
     ======================================================================== */
  .inquire-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(2.5rem, 5vw, 4.75rem);
    align-items: start;
  }

  @media (min-width: 58rem) {
    .inquire-layout {
      grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    }
  }

  @supports (container-type: inline-size) {
    @media (min-width: 58rem) {
      .inquire-layout {
        grid-template-columns: minmax(0, 1fr);
      }
    }

    @container section-shell (inline-size >= 58rem) {
      .inquire-layout {
        grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
      }
    }
  }

  .form-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }

  @media (min-width: 38rem) {
    .form-row:not(:has(> :only-child)) {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  /* ========================================================================
     SITE FOOTER LAYOUT
     ======================================================================== */
  .site-footer {
    background-color: var(--surface-inverse);
    color: var(--ink-on-dark);
    padding-block: clamp(3rem, 5vw, 4.5rem);
    border-block-start: 1px solid var(--border-hairline);
  }

  .footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
  }

  @media (min-width: 52rem) {
    .footer-inner {
      grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    }

    .footer-copy {
      grid-column: 1 / -1;
    }
  }
}