/* ==========================================================================
   نَبْض | NABD — Kinetic Interior Design
   ملف: /css/layout.css
   الهيكل والتخطيط والشبكات التحريرية والتجاوب
   ========================================================================== */

/* مسافة رأسية لتعويض شريط التنقل الثابت */
body {
  padding-top: var(--header-height);
}

/* ==========================================================================
   أ) الحاويات (Containers)
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.5rem, 5vw, 4rem);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: clamp(1.5rem, 5vw, 4rem);
}

.container-text {
  width: 100%;
  max-width: var(--container-text);
  margin-inline: auto;
  padding-inline: clamp(1.5rem, 6vw, 4.5rem);
}

/* ==========================================================================
   ب) حشوات الأقسام (Sections)
   ========================================================================== */

.section-pad {
  padding-block: clamp(4rem, 10vw, 8rem);
}

.section-pad-sm {
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.section-pad-lg {
  padding-block: clamp(6rem, 14vw, 12rem);
}

.section-dark {
  background-color: var(--jet);
  color: var(--bone);
}

/* ==========================================================================
   ج) الشبكات التحريرية (Grids)
   ========================================================================== */

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
}

/* توزيعات منقسمة */
.split-60-40 {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.split-40-60 {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.split-50-50 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

/* اللاتماثل التحريري */
.asymmetric {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}

/* شبكة أرشيف المشاريع — أول كل 5 كروت عريض */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.portfolio-grid .project-card {
  grid-column: span 6;
}

.portfolio-grid .project-card:nth-child(5n+1) {
  grid-column: span 12;
}

.portfolio-grid .project-card:nth-child(5n+1) .project-card-media {
  aspect-ratio: 16 / 9;
}

/* شبكة الفريق */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(2rem, 4vw, 3rem);
}

/* شبكة المدونة */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.blog-grid .journal-card {
  grid-column: span 6;
}

.blog-grid .journal-card:first-child {
  grid-column: span 12;
}

/* شريط بيانات المشروع */
.project-meta-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding-block: var(--space-lg);
  border-block: 2px solid var(--border-strong);
  margin-block: var(--space-xl);
}

.project-meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.project-meta-value {
  font-family: var(--font-subheading);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--jet);
}

/* التنقل بين المشاريع */
.project-nav-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--space-xl);
  border-top: 2px solid var(--border-strong);
  gap: var(--space-lg);
}

.project-nav-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transition: color var(--duration-hover) var(--ease-out-expo);
}

.project-nav-item:hover .project-nav-title {
  color: var(--acid);
}

/* ==========================================================================
   د) الخط الزمني التحريري (Timeline)
   ========================================================================== */

.timeline {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  gap: clamp(1rem, 2vw, 2rem);
  position: relative;
  align-items: center;
}

.timeline-track {
  grid-column: 2 / 3;
  position: relative;
  width: 2px;
  height: 100%;
  min-height: 100%;
  margin-inline: auto;
  background-color: var(--border-thin);
}

.timeline-line-svg {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  pointer-events: none;
}

/* TODO: verify alignment against center line in browser — RTL may need flip */
.timeline-step-right {
  grid-column: 1 / 2;
  text-align: right;
}

.timeline-step-left {
  grid-column: 3 / 4;
  text-align: right;
}

/* ==========================================================================
   هـ) التجاوب (Media Queries)
   ========================================================================== */

@media (max-width: 960px) {
  .split-60-40,
  .split-40-60,
  .split-50-50 {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .project-meta-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .timeline {
    grid-template-columns: 40px 1fr;
    gap: var(--space-md);
  }
  .timeline-track {
    grid-column: 1 / 2;
  }
  .timeline-step-right,
  .timeline-step-left {
    grid-column: 2 / 3;
    text-align: right;
    margin-bottom: var(--space-xl);
  }
}

@media (max-width: 768px) {
  .portfolio-grid .project-card,
  .portfolio-grid .project-card:nth-child(5n+1) {
    grid-column: span 12;
  }
  .portfolio-grid .project-card:nth-child(5n+1) .project-card-media {
    aspect-ratio: 4 / 3;
  }
  .blog-grid .journal-card,
  .blog-grid .journal-card:first-child {
    grid-column: span 12;
  }
  .project-meta-bar {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .project-nav-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .grid-12,
  .asymmetric {
    grid-template-columns: 1fr;
  }
  .team-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   و) فئات مساعدة عامة (Utilities)
   ========================================================================== */

.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-left   { text-align: left; }

.flex         { display: flex; }
.flex-col     { display: flex; flex-direction: column; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-wrap    { flex-wrap: wrap; }

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.mt-0   { margin-top: 0; }
.mb-0   { margin-bottom: 0; }
.mt-sm  { margin-top: var(--space-sm); }
.mt-md  { margin-top: var(--space-md); }
.mt-lg  { margin-top: var(--space-lg); }
.mt-xl  { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-sm  { margin-bottom: var(--space-sm); }
.mb-md  { margin-bottom: var(--space-md); }
.mb-lg  { margin-bottom: var(--space-lg); }
.mb-xl  { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.hidden {
  display: none !important;
}