/* ==========================================================================
   LAYOUT — Structure only for headers, hero, sections, grids, footer
   ========================================================================== */

:root {
  /* Map layout helpers to the global section padding token for consistency */
  --layout-section-pad: var(--section-padding);
  --layout-section-pad-sm: var(--section-padding);
  --layout-section-pad-xs: var(--section-padding);
}

.container {
  width: min(100% - 2rem, var(--container-max));
  margin-inline: auto;
}

main {
  width: 100%;
}

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

.section-head {
  max-width: var(--content-read-width);
  margin-bottom: var(--space-5);
}

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

.section-head > * + * {
  margin-top: var(--space-2);
}

.section--alt {
  background: var(--bg-secondary);
}

/* Header and sticky navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  height: var(--header-height);
  display: flex;
  justify-content: center;
  align-items: center;
  background: transparent;
  color: var(--text-primary);
  transition: background 0.35s ease, color 0.35s ease, height 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.site-header .container {
  width: min(1280px, calc(100% - 64px));
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.site-header:not(.is-scrolled) {
  background: transparent;
  box-shadow: none;
}

.site-header.is-scrolled {
  background: var(--bg-elevated);
  color: var(--text-primary);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
  border-bottom: 1px solid var(--section-divider);
  height: calc(var(--header-height) - 12px);
}

.site-header .logo,
.site-header .nav-links a,
.site-header .theme-toggle,
.site-header .nav-toggle {
  color: inherit;
}

.site-header .nav-links a {
  text-shadow: none;
  font-size: var(--font-size-nav);
  font-weight: var(--font-weight-nav);
  letter-spacing: var(--letter-spacing-nav);
}

.site-header:not(.is-scrolled) .nav-links a {
  color: var(--text-on-primary);
  text-shadow: 0 10px 22px rgba(0, 0, 0, 0.28);
}

.site-header.is-scrolled .logo,
.site-header.is-scrolled .nav-links a,
.site-header.is-scrolled .theme-toggle,
.site-header.is-scrolled .nav-toggle {
  color: var(--text-primary);
}

.site-header.is-scrolled .nav-links a {
  text-shadow: none;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-2), 2vw, var(--space-3));
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-toggle {
  display: none;
}

/* Hero layout */
.hero {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(280px, 520px);
  gap: clamp(var(--space-5), 5vw, var(--space-7));
  align-items: center;
  min-height: 72vh;
  padding-block: clamp(3.5rem, 6vw, 6rem);
}

.hero.container {
  width: min(1280px, calc(100% - 64px));
  max-width: 1280px;
  margin-inline: auto;
}

.hero .hero-content {
  max-width: 760px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: center;
}

.hero .hero-copy {
  max-width: 700px;
  color: var(--text-secondary);
  line-height: var(--lh-relaxed);
}

.hero .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
  align-items: center;
}

.hero-panel,
.hero-visual {
  width: 100%;
  min-height: 360px;
  display: grid;
  place-items: center;
}

.hero-panel {
  padding: var(--space-4);
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, var(--bg-elevated), var(--bg-secondary));
  box-shadow: var(--shadow-md);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.hero-actions,
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.hero-meta {
  margin-top: var(--space-1);
}

.hero-visual {
  min-height: 29rem;
}

/* Main sections */
.about-grid,
.services-grid,
.projects-grid,
.contact-grid {
  display: grid;
  gap: clamp(var(--space-3), 2.8vw, var(--space-5));
}

.about-grid {
  grid-template-columns: 1.2fr 0.8fr;
}

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

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

.contact-grid {
  grid-template-columns: 0.9fr 1.1fr;
}

/* Grid system */
.grid {
  display: grid;
  gap: clamp(var(--space-2), 2vw, var(--space-3));
}

.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)); }

/* Process and timeline structure */
.process-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(var(--space-2), 2.2vw, var(--space-4));
}

.timeline {
  position: relative;
  display: grid;
  gap: var(--space-3);
}

.timeline-item {
  position: relative;
  padding-left: calc(var(--space-4) + 1.25rem);
}

/* Form and actions spacing */
.form-group,
.form-actions,
.contact-form,
.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Footer */
.site-footer {
  padding-block: clamp(4.75rem, 6vw, 6.25rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: clamp(var(--space-3), 3vw, var(--space-5));
  margin-bottom: var(--space-5);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding-top: var(--space-4);
}

/* Responsive layout */
@media (max-width: 1024px) {
  .container {
    width: min(100% - 2.25rem, var(--container-max));
  }

  /* Force single-column layouts on narrower screens even if inline styles exist */
  .services-grid,
  .projects-grid,
  .contact-grid,
  .about-grid {
    grid-template-columns: 1fr !important;
  }

  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero {
    gap: clamp(var(--space-4), 5vw, var(--space-6));
  }

  .section-head {
    margin-bottom: clamp(2.25rem, 4vw, 3rem);
  }
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    inset: calc(var(--header-height)) 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-3);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-block: clamp(4.75rem, 7vw, 6rem);
    gap: var(--space-4);
  }

  .hero-content {
    gap: var(--space-3);
  }

  .hero-actions,
  .hero-meta {
    gap: var(--space-2);
  }

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

  .site-footer {
    padding-block: clamp(4.25rem, 7vw, 5.25rem);
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 1.25rem, var(--container-max));
  }

  section {
    padding-block: var(--layout-section-pad-sm);
  }

  .section-head {
    margin-bottom: var(--space-4);
  }

  .hero {
    padding-block: var(--space-5);
    gap: var(--space-3);
  }

  .hero-actions,
  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
  }


  .grid--2,
  .grid--3,
  .grid--4,
  .process-track,
  .footer-grid {
    grid-template-columns: 1fr !important;
  }

  .footer-grid {
    gap: var(--space-3);
    margin-bottom: var(--space-4);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding-top: var(--space-3);
  }
}

/* Utility layout helpers */
.flex { display: flex; align-items: center; }
.flex-col { display: flex; flex-direction: column; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

/* ==========================================
   HERO BACKGROUND IMAGES
========================================== */
.about-hero,
.services-hero,
.portfolio-hero,
.experience-hero,
.blog-hero,
.contact-hero{
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.home-hero {
  position: relative;
  overflow: hidden;
}

.about-hero{
    background-image:
    linear-gradient(rgba(8,15,30,.72),rgba(8,15,30,.72)),
    url("../assets/images/hero-about.png");
}

.services-hero{
    background-image:
    linear-gradient(rgba(8,15,30,.72),rgba(8,15,30,.72)),
  url("../assets/images/hero-services.svg");
}

.portfolio-hero{
    background-image:
    linear-gradient(rgba(8,15,30,.72),rgba(8,15,30,.72)),
  url("../assets/images/hero-portfolio.svg");
}

.experience-hero{
    background-image:
    linear-gradient(rgba(8,15,30,.72),rgba(8,15,30,.72)),
    url("../assets/images/hero-experience.png");
}

.blog-hero{
    background-image:
    linear-gradient(rgba(8,15,30,.72),rgba(8,15,30,.72)),
    url("../assets/images/hero-blog.png");
}

.contact-hero{
    background-image:
    linear-gradient(rgba(8,15,30,.72),rgba(8,15,30,.72)),
    url("../assets/images/contact.jpg");
}


.home-hero *,
.about-hero *,
.services-hero *,
.portfolio-hero *,
.experience-hero *,
.blog-hero *,
.contact-hero *{
    color:#fff;
}