/**
 * 05 - Sections — Premium Page Sections
 * @package Stratos_One_Portfolio
 *
 * Source: robert-portfolio/assets/css/bundle.css (sections)
 * Purpose: Hero, Services, Projects, About, Contact sections
 */

/* Import section-specific styles */
@import url('sections/_hero.css');
@import url('sections/_services.css');

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--spacing-hero-top);
  padding-bottom: var(--spacing-hero-bottom);
  background-color: var(--color-bg-primary);
  position: relative;
  overflow: hidden;
}

/* Subtle radial glow behind hero content */
.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 60% 40% at 65% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  position: relative;
  z-index: 1;
}

/* Eyebrow label */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-widest);
  text-transform: uppercase;
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-lg);
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-accent-primary);
}

.hero-headline {
  font-size: clamp(var(--font-size-xl), 4.5vw, var(--font-size-2xl));
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.hero-headline em {
  font-style: normal;
  color: var(--color-accent-primary);
}

.hero-subheadline {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: 540px;
  margin-bottom: var(--spacing-xl);
}

/* Tech stack badges */
.hero-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--spacing-xl);
}

/* Hero CTA */
.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  align-items: center;
}

/* Hero Visual / Diagram */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.diagram-container {
  position: relative;
  width: 100%;
  max-width: 480px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  cursor: zoom-in;
}

.diagram-container::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius-lg) + 1px);
  background: linear-gradient(135deg, var(--color-border-accent) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

.diagram-container:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-accent);
}

.diagram-container:hover::before {
  opacity: 0.5;
}

.hero-diagram {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  transition: transform var(--transition-slow);
}

.diagram-container:hover .hero-diagram {
  transform: scale(1.015);
}

/* Zoom button */
.diagram-zoom-btn {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 36px;
  height: 36px;
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-fast);
  z-index: 10;
}

.diagram-container:hover .diagram-zoom-btn {
  opacity: 1;
}

.diagram-zoom-btn:hover {
  background-color: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
}

.diagram-zoom-btn:hover svg { fill: #fff; }

.diagram-zoom-btn svg {
  width: 18px;
  height: 18px;
  fill: var(--color-text-muted);
  transition: fill var(--transition-fast);
}

/* Tooltip */
.diagram-tooltip {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-full);
  padding: 4px 14px;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
}

.diagram-container:hover .diagram-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Animations */
.hero-text {
  animation: heroFadeIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-visual {
  animation: heroFadeIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.15s both;
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   Services / What I Do Section
   ============================================ */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--grid-gap-2);
}

.service-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-accent);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-lg);
  stroke: var(--color-accent-primary);
}

.service-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.service-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

.service-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

/* ============================================
   Projects Section
   ============================================ */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--grid-gap-2);
}

.project-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-accent);
  transform: translateY(-4px);
}

.project-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  background-color: var(--color-bg-tertiary);
}

.project-category {
  font-size: var(--font-size-xs);
  color: var(--color-accent-primary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-sm);
}

.project-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.project-excerpt {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--spacing-lg);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent-primary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.project-link:hover {
  color: var(--color-accent-hover);
  gap: 10px;
}

/* Filter buttons */
.project-filter {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

.filter-btn {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

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

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap-2);
  align-items: center;
}

.about-text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.about-text p {
  margin-bottom: var(--spacing-lg);
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 100%;
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  max-height: 400px;
  object-fit: cover;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--color-border-subtle);
}

.stat-number {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

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

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap-2);
}

.contact-info {
  padding-right: var(--spacing-2xl);
}

.contact-form {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  background-color: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-form button {
  width: 100%;
}

.contact-social {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  transition: all var(--transition-fast);
}

.social-link:hover {
  border-color: var(--color-accent-primary);
  background: var(--color-accent-subtle);
  transform: translateY(-2px);
}

.social-link svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-text-secondary);
  transition: stroke var(--transition-fast);
}

.social-link:hover svg {
  stroke: var(--color-accent-primary);
}