/* ==========================================================================
   TBS Co. Projects Page Style Sheet (Vanilla CSS3)
   ========================================================================== */

/* 1. Page-only projects styles. Shared tokens, reset, layout utilities, header,
   footer, and global helpers are owned by global.css. */



/* 2. Radial Glowing Backgrounds */
.bg-radial-glow {
  background-color: var(--color-white);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(0, 122, 134, 0.02) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(243, 111, 33, 0.02) 0%, transparent 40%);
}

/* 3. Cinematic Projects Hero */
.projects-hero {
  position: relative;
  background-color: var(--color-navy);
  padding-top: 10rem;
  padding-bottom: 10rem;
  overflow: hidden;
}

@media (max-width: 768px) {
  .projects-hero {
    padding-top: 8rem;
    padding-bottom: 8rem;
  }
}

.projects-hero-blueprint {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  z-index: 0;
  pointer-events: none;
}

.projects-hero-glow-1 {
  position: absolute;
  top: 25%;
  left: 25%;
  width: 350px;
  height: 350px;
  background-color: rgba(0, 122, 134, 0.15);
  border-radius: 50%;
  filter: blur(100px);
  z-index: 0;
  animation: pulse-subtle 4s ease-in-out infinite;
}

.projects-hero-glow-2 {
  position: absolute;
  bottom: 25%;
  right: 25%;
  width: 300px;
  height: 300px;
  background-color: rgba(243, 111, 33, 0.1);
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
}

@keyframes pulse-subtle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.02); }
}

.projects-hero-container {
  position: relative;
  z-index: 10;
}

.projects-hero-left {
  max-width: 56rem;
}

.projects-hero-tag {
  color: var(--color-teal);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .projects-hero-tag {
    font-size: 0.875rem;
  }
}

.projects-hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.25rem;
  color: var(--color-white);
  line-height: 1.1;
  letter-spacing: 0;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .projects-hero-title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .projects-hero-title {
    font-size: 3.75rem;
  }
}

.projects-hero-narrative {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 48rem;
}

.projects-hero-desc-en {
  color: var(--color-slate-300);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.625;
}

@media (min-width: 768px) {
  .projects-hero-desc-en {
    font-size: 1.125rem;
  }
}

.projects-hero-desc-ar {
  font-family: var(--font-arabic);
  color: var(--color-slate-400);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.625;
  text-align: right;
  direction: rtl;
}

@media (min-width: 768px) {
  .projects-hero-desc-ar {
    font-size: 1rem;
  }
}

/* 4. Interactive Cohort Switcher Navigation */
.switcher-section {
  position: relative;
  z-index: 20;
  margin-top: -4rem;
  padding-bottom: 4rem;
}

@media (min-width: 768px) {
  .switcher-section {
    margin-top: -5rem;
  }
}

.switcher-container {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  padding: 0.5rem;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 768px) {
  .switcher-container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
  }
}

.switcher-label-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-left: 0.75rem;
}

.switcher-dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background-color: var(--color-orange);
  flex-shrink: 0;
}

.switcher-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-500);
}

.filter-buttons-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  background-color: rgba(241, 245, 249, 0.8);
  padding: 0.25rem;
  border: 1px solid rgba(226, 232, 240, 0.6);
}

@media (min-width: 768px) {
  .filter-buttons-group {
    flex-wrap: nowrap;
  }
}

.filter-btn {
  width: 100%;
  padding: 0.75rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  background: transparent;
  color: var(--color-slate-600);
  cursor: pointer;
  transition: all 0.3s ease;
}

@media (min-width: 768px) {
  .filter-btn {
    width: auto;
  }
}

.filter-btn:hover {
  color: var(--color-teal);
  background-color: rgba(226, 232, 240, 0.5);
}

.filter-btn.active {
  background-color: var(--color-navy);
  color: var(--color-white);
}

/* 5. 4 High-Impact Case Study Showcase */
.portfolio-section {
  padding-bottom: 6rem;
  position: relative;
}

.projects-grid-container {
  display: flex;
  flex-direction: column;
  gap: 6rem;
}

.project-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-100);
  border-radius: 1rem;
  padding: 1.5rem;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
  opacity: 1;
  transform: scale(1);
  scroll-margin-top: 100px;
}

@media (min-width: 768px) {
  .project-card {
    padding: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .project-card {
    padding: 3rem;
  }
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px -15px rgba(15, 23, 42, 0.12);
}

.project-card.hidden-card {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
}

.project-grid-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .project-grid-columns {
    grid-template-columns: repeat(12, 1fr);
  }
  .project-grid-columns > .project-visual-wrapper {
    grid-column: span 6;
  }
  .project-grid-columns > .project-narrative-wrapper {
    grid-column: span 6;
  }
  
  /* Alternating order rules */
  .project-card.alternate-layout .project-narrative-wrapper {
    order: 1;
  }
  .project-card.alternate-layout .project-visual-wrapper {
    order: 2;
  }
}

/* Narrative content block styling */
.project-narrative-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.project-meta-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.badge-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.75rem;
  border-radius: 0.25rem;
  display: inline-block;
}

.badge-tag.teal {
  color: var(--color-teal);
  background-color: var(--color-teal-light);
}

.badge-tag.orange {
  color: var(--color-orange);
  background-color: var(--color-orange-light);
}

.project-subtag {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-slate-400);
}

.project-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-navy);
  line-height: 1.2;
}

@media (min-width: 640px) {
  .project-title {
    font-size: 1.875rem;
  }
}

.project-desc-block {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  color: var(--color-slate-600);
  font-size: 0.875rem;
  font-weight: 300;
  line-height: 1.625;
}

@media (min-width: 768px) {
  .project-desc-block {
    font-size: 0.9375rem;
  }
}

.project-desc-block strong {
  color: var(--color-navy);
  font-weight: 600;
}

.project-desc-ar {
  font-family: var(--font-arabic);
  font-weight: 600;
  color: var(--color-teal);
  text-align: right;
  direction: rtl;
  line-height: 1.625;
}

.project-specs-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  border-top: 1px solid var(--color-slate-100);
  padding-top: 1.5rem;
  list-style: none;
}

@media (min-width: 640px) {
  .project-specs-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.project-spec-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-slate-600);
}

.project-spec-icon {
  width: 1rem;
  height: 1rem;
  color: var(--color-teal);
  flex-shrink: 0;
}

.project-metrics-box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  background-color: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  padding: 1rem;
  border-radius: 0.75rem;
  text-align: center;
}

.project-metric-card {
  display: flex;
  flex-direction: column;
}

.project-metric-card.border-x {
  border-left: 1px solid var(--color-slate-200);
  border-right: 1px solid var(--color-slate-200);
}

.project-metric-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-navy);
  line-height: 1;
}

@media (min-width: 640px) {
  .project-metric-num {
    font-size: 1.5rem;
  }
}

.project-metric-num.teal {
  color: var(--color-teal);
}

.project-metric-num.orange {
  color: var(--color-orange);
}

.project-metric-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-400);
  margin-top: 0.25rem;
}

/* Visual wrapper blueprint representations styling */
.project-visual-wrapper {
  position: relative;
  background-color: #0A0F1D;
  border-radius: 0.75rem;
  border: 1px solid var(--color-slate-800);
  box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.5);
  display: block;
  min-height: 380px;
  overflow: hidden;
}

.project-background-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  display: block;
  z-index: 1;
  transition: transform var(--transition-slow);
}

/* 5.1 Project Photo Metadata Frosted Glass Bar */
.project-photo-metadata {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(14, 30, 54, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 10;
  transition: all var(--transition-normal);
}

.project-visual-wrapper:hover .project-photo-metadata {
  background: rgba(14, 30, 54, 0.95);
  border-top-color: rgba(0, 168, 204, 0.3);
}

.hud-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10B981; /* Premium Emerald Green */
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
  flex-shrink: 0;
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
  }
  50% {
    transform: scale(1.2);
    opacity: 0.8;
    box-shadow: 0 0 14px rgba(16, 185, 129, 0.9);
  }
}

.metadata-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-slate-200);
  line-height: 1.2;
}

.project-visual-wrapper:hover .metadata-text {
  color: var(--color-white);
}

/* Ensure language toggle hides/shows appropriate text */
html[lang="en"] .metadata-text.lang-ar { display: none; }
html[lang="ar"] .metadata-text.lang-en { display: none; }

.project-visual-wrapper:hover .project-background-photo {
  transform: scale(1.04);
}

/* 6. Credentials Summary Bar */
.credentials-bar {
  background-color: #F1F5F9;
  border-top: 1px solid var(--color-slate-200);
  border-bottom: 1px solid var(--color-slate-200);
  padding: 2.5rem 0;
  position: relative;
  z-index: 10;
}

.credentials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  text-align: center;
}

@media (min-width: 768px) {
  .credentials-grid {
    grid-template-columns: repeat(3, 1fr);
    text-align: left;
  }
}

.credential-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (min-width: 768px) {
  .credential-card {
    padding: 0 1.5rem;
  }
  .credential-card:not(:first-child) {
    border-left: 1px solid rgba(203, 213, 225, 0.8);
  }
}

@media (max-width: 767px) {
  .credential-card:not(:first-child) {
    border-top: 1px solid rgba(203, 213, 225, 0.8);
    padding-top: 1.5rem;
  }
}

.credential-pretag {
  font-size: 10px;
  font-weight: 700;
  color: var(--color-slate-400);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  margin-bottom: 0.25rem;
  display: block;
}

.credential-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-navy);
  line-height: 1.2;
}

@media (min-width: 640px) {
  .credential-value {
    font-size: 1.5rem;
  }
}

.credential-value.teal {
  color: var(--color-teal);
}

.credential-subtitle {
  font-size: 9px;
  font-weight: 500;
  color: var(--color-slate-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
  display: block;
}

/* 7. Client ecosystem grid */
.clients-section {
  background-color: var(--color-white);
  padding: 5rem 0;
  position: relative;
  z-index: 10;
}

.clients-header {
  text-align: center;
  margin-bottom: 3rem;
}

.clients-pretag {
  color: var(--color-teal);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.5rem;
}

.clients-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-navy);
}

@media (min-width: 640px) {
  .clients-title {
    font-size: 1.875rem;
  }
}

.clients-divider {
  width: 3rem;
  height: 0.25rem;
  background-color: var(--color-orange);
  margin: 1rem auto 0 auto;
}

.clients-logos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  align-items: center;
  justify-items: center;
  opacity: 0.65;
  filter: grayscale(100%);
  transition: all 0.5s ease;
}

.clients-logos-grid:hover {
  filter: grayscale(0%);
  opacity: 1;
}

@media (min-width: 640px) {
  .clients-logos-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .clients-logos-grid {
    grid-template-columns: repeat(7, 1fr);
  }
}

.client-logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.client-logo-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-slate-700);
  letter-spacing: 0;
}

.client-logo-title-sub {
  font-size: 1.125rem;
}

.client-logo-badge {
  font-family: monospace;
  font-size: 7px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-slate-400);
  margin-top: 0.25rem;
  display: block;
}

/* 8. B2B RFQ Closing Section (Light Theme) */
.project-rfq-section {
  position: relative;
  background-color: var(--color-primary-tint); /* Lighter gray-blue (#F0F4F8) */
  border-top: 1px solid var(--color-primary-light);
  padding: 6rem 0;
  overflow: hidden;
  scroll-margin-top: 100px;
}

.project-rfq-blueprint {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  z-index: 0;
  pointer-events: none;
}

.project-rfq-blueprint svg rect {
  fill: url(#ctaGrid);
}

.project-rfq-container {
  position: relative;
  z-index: 10;
  max-width: 64rem;
  margin: 0 auto;
  text-align: center;
  padding: 0 1.5rem;
}

.project-rfq-tag {
  color: var(--color-teal); /* Darker teal with high contrast */
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 1rem;
}

.project-rfq-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.875rem;
  color: var(--color-primary-deep); /* High contrast dark navy */
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .project-rfq-title {
    font-size: 2.25rem;
  }
}

@media (min-width: 768px) {
  .project-rfq-title {
    font-size: 3rem;
  }
}

.project-rfq-desc {
  color: var(--color-slate-600); /* High contrast slate */
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.625;
  max-width: 48rem;
  margin: 0 auto 2.5rem auto;
}

.project-rfq-buttons-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

@media (min-width: 640px) {
  .project-rfq-buttons-group {
    flex-direction: row;
  }
}

.btn-outline-navy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 0.5rem;
  background: transparent;
  border: 2px solid var(--color-primary-base);
  color: var(--color-primary-base);
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
}

.btn-outline-navy:hover {
  background-color: var(--color-primary-base);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Projects Typography Normalization
   ========================================================================== */
.projects-hero-title {
  font-size: var(--fs-h1);
}

.project-title,
.clients-title,
.project-rfq-title {
  font-size: var(--fs-h2);
}

.projects-hero-desc-en,
.projects-hero-desc-ar,
.project-desc-block,
.project-rfq-desc {
  font-size: var(--fs-body);
}

.project-spec-item,
.metadata-text {
  font-size: var(--fs-body-secondary);
}