/* ===================================================================
 * SECTIONS.CSS — Page-specific section styles
 * ------------------------------------------------------------------- */

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--clr-bg);
}

.hero-video-container {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 62%;
  overflow: hidden;
  z-index: 1;
}
.hero-video {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.88) contrast(1.1);
}
.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(255,255,255,0.2) 0%, var(--clr-bg) 100%);
}
[data-theme="dark"] .hero-video-overlay {
  background: linear-gradient(to bottom, rgba(15,15,23,0.35) 0%, var(--clr-bg) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  margin-top: 46vh;
  text-align: center;
  width: 100%;
}

.hero-pretitle {
  display: block;
  font-size: 0.9rem;
  color: var(--clr-primary);
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: var(--sp-4);
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  margin-bottom: var(--sp-4);
  line-height: 1.15;
}

.typewriter-text {
  display: inline-block;
  overflow: hidden;
  border-right: 3px solid var(--clr-primary);
  white-space: nowrap;
  animation: typewriter 3.5s steps(40, end), blink-cursor 0.8s step-end infinite;
}
@keyframes typewriter {
  from { width: 0; }
  to   { width: 100%; }
}
@keyframes blink-cursor {
  from, to { border-color: transparent; }
  50%      { border-color: var(--clr-primary); }
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.4rem);
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-8);
}

.hero-cta {
  display: flex;
  gap: var(--sp-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--sp-8);
}

.hero-social {
  display: flex;
  gap: var(--sp-3);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  color: var(--clr-primary);
  font-size: 1.8rem;
  animation: bounce 2.4s infinite;
  z-index: 3;
}

/* ── Stats ── */
.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--sp-5);
}
.stat-item {
  text-align: center;
  padding: var(--sp-6);
  background: var(--clr-bg-card);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-border);
  transition: transform var(--t-bounce), box-shadow var(--t-normal);
}
.stat-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.stat-number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--clr-primary);
  margin-bottom: var(--sp-1);
}
.stat-text { font-size: 0.95rem; color: var(--clr-text-muted); margin-bottom: 0; }

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}
.about-image { position: relative; }
.about-img {
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-xl);
  transition: transform var(--t-normal);
}
.about-image:hover .about-img { transform: scale(1.02); }
.about-badge {
  position: absolute;
  bottom: -18px; right: -18px;
  background: var(--clr-primary);
  color: #fff;
  padding: var(--sp-4) var(--sp-5);
  border-radius: var(--r-lg);
  text-align: center;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.2;
  box-shadow: var(--shadow-green);
  animation: pulse 2.5s infinite;
}
.about-badge div:first-child { font-size: 1.8rem; }
.about-badge div:last-child  { font-size: 0.85rem; opacity: 0.9; }
.about-text { color: var(--clr-text-muted); }
.about-skills { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-6); }
.about-cta    { display: flex; gap: var(--sp-4); flex-wrap: wrap; }

/* Timeline */
.timeline {
  position: relative;
  margin: var(--sp-12) 0 0;
  padding-left: var(--sp-8);
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; height: 100%;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-primary), var(--clr-primary-light));
}
.timeline-item { position: relative; margin-bottom: var(--sp-8); }
.timeline-dot {
  position: absolute;
  left: -33px; top: 4px;
  width: 14px; height: 14px;
  border-radius: var(--r-full);
  background: var(--clr-primary);
  border: 3px solid var(--clr-bg);
  box-shadow: 0 0 0 2px var(--clr-primary-light);
}
.timeline-date  { font-size: 0.82rem; color: var(--clr-primary); font-weight: 600; letter-spacing: 0.5px; margin-bottom: var(--sp-1); }
.timeline-title { font-size: 1.1rem; margin-bottom: var(--sp-2); }
.timeline-text  { color: var(--clr-text-muted); font-size: 0.95rem; margin-bottom: 0; }

/* ── Services Grid ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-6);
}

/* ── Portfolio Grid ── */
.portfolio-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-8);
}
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: var(--sp-6);
}

/* ── Project Slider ── */
.project-slide {
  background: var(--clr-bg-card);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-border);
  margin: var(--sp-3);
}
.project-slide-img {
  width: 100%; height: 240px;
  object-fit: cover;
}
.project-slide-content { padding: var(--sp-6); }
.project-slide-title   { font-size: 1.2rem; margin-bottom: var(--sp-3); }
.project-slide-desc    { color: var(--clr-text-muted); margin-bottom: var(--sp-5); font-size: 0.95rem; }

/* ── Blog Grid ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-6);
  margin-bottom: var(--sp-8);
}

/* ── Gallery Grid ── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--sp-4);
}
.tab-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}

/* ── PDF Section ── */
.pdf-section {
  padding: var(--sp-20) 0;
  overflow: hidden;
}
.pdf-swiper { padding: var(--sp-5) var(--sp-2) var(--sp-12) !important; overflow: hidden !important; }
.pdf-swiper .swiper-wrapper { display: flex; align-items: stretch; }
.pdf-swiper .swiper-slide   { height: auto; display: flex; justify-content: center; }
.pdf-next, .pdf-prev {
  color: var(--clr-primary) !important;
  background: var(--clr-bg-card) !important;
  width: 44px !important; height: 44px !important;
  border-radius: var(--r-full) !important;
  box-shadow: var(--shadow-md) !important;
}
.pdf-next:hover, .pdf-prev:hover {
  background: var(--clr-primary) !important;
  color: #fff !important;
}
.pdf-next:after, .pdf-prev:after { font-size: 1rem !important; font-weight: 800 !important; }

/* ── Twitter Grid ── */
.twitter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-6);
  margin-bottom: var(--sp-8);
}

/* ── Book Section ── */
.book-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--sp-16);
  align-items: start;
}
.book-cover-wrap {
  position: sticky;
  top: 120px;
  text-align: center;
}
.book-img {
  width: 100%;
  max-width: 360px;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-xl);
  margin: 0 auto;
  transition: transform var(--t-slow), box-shadow var(--t-slow);
}
.book-img:hover {
  transform: rotateY(5deg) scale(1.04);
  box-shadow: 20px 20px 40px rgba(0,0,0,0.18);
}
.book-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--clr-primary);
  color: #fff;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: var(--sp-5);
  animation: pulse 2.5s infinite;
}

.book-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: var(--sp-3);
  background: linear-gradient(135deg, var(--clr-text) 0%, var(--clr-primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
[data-theme="dark"] .book-title {
  background: linear-gradient(135deg, #fff 0%, var(--clr-primary-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.book-subtitle {
  font-size: 1.1rem;
  color: var(--clr-text-muted);
  font-style: italic;
  margin-bottom: var(--sp-6);
}
.book-description {
  padding: var(--sp-5);
  background: var(--clr-bg-alt);
  border-radius: var(--r-md);
  border-left: 4px solid var(--clr-primary);
  margin-bottom: var(--sp-6);
  color: var(--clr-text-muted);
  line-height: 1.75;
}
.book-features { margin-bottom: var(--sp-6); }
.book-features h3 {
  font-size: 1.1rem;
  margin-bottom: var(--sp-4);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.book-features h3::before {
  content: '';
  width: 28px; height: 3px;
  background: var(--clr-primary);
  display: block;
  border-radius: 2px;
  flex-shrink: 0;
}
.book-features ul { padding-left: var(--sp-5); }
.book-features li { color: var(--clr-text-muted); margin-bottom: var(--sp-2); }

.book-cta { display: flex; gap: var(--sp-4); flex-wrap: wrap; margin-bottom: var(--sp-6); }

.book-meta { display: flex; flex-direction: column; gap: var(--sp-2); }
.meta-item { display: flex; align-items: center; gap: var(--sp-3); font-size: 0.9rem; color: var(--clr-text-muted); }
.meta-item i { color: var(--clr-primary); width: 18px; text-align: center; }

/* ── Social Carousel ── */
.social-carousel .swiper-container { padding: var(--sp-4) 0; }
.social-carousel-item {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 90px;
}
.social-carousel-icon {
  font-size: 2.6rem;
  color: var(--clr-primary);
  transition: transform var(--t-bounce), color var(--t-fast);
}
.social-carousel-icon:hover {
  color: var(--clr-primary-dark);
  transform: scale(1.25);
}

/* ── Testimonials ── */
.testimonials-slider .swiper-container { padding: 0 var(--sp-3) var(--sp-8); }

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--sp-12);
  align-items: start;
}
.contact-info   { display: flex; flex-direction: column; gap: var(--sp-6); }
.contact-item   { display: flex; align-items: flex-start; gap: var(--sp-4); }
.contact-social { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

/* ── Particles ── */
.particles-js {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* ===================================================================
 * RESPONSIVE
 * ------------------------------------------------------------------- */
@media (max-width: 992px) {
  .about-grid   { grid-template-columns: 1fr; gap: var(--sp-8); }
  .about-badge  { position: relative; bottom: auto; right: auto; display: inline-block; margin-top: var(--sp-4); }
  .book-grid    { grid-template-columns: 1fr; gap: var(--sp-10); }
  .book-cover-wrap { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: var(--sp-8); }
  .book-cta     { justify-content: center; }
  .about-cta    { justify-content: flex-start; }
}

@media (max-width: 768px) {
  .hero-video-container { height: 44%; }
  .hero-content         { margin-top: 34vh; }
  .stats-container      { grid-template-columns: repeat(2, 1fr); }
  .services-grid        { grid-template-columns: 1fr; }
  .portfolio-grid       { grid-template-columns: 1fr; }
  .blog-grid            { grid-template-columns: 1fr; }
  .gallery-grid         { grid-template-columns: repeat(2, 1fr); }
  .twitter-grid         { grid-template-columns: 1fr; }
  .hero-cta             { flex-direction: column; align-items: center; }
  .hero-cta .btn        { width: 100%; max-width: 240px; justify-content: center; }
  .social-link          { width: 40px; height: 40px; }
  .stat-number          { font-size: 2.2rem; }
  .book-grid            { text-align: center; }
  .book-cta             { justify-content: center; }
  .meta-item            { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-video-container { height: 38%; }
  .hero-content         { margin-top: 28vh; }
  .stats-container      { grid-template-columns: 1fr; }
  .gallery-grid         { grid-template-columns: 1fr; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .services-grid  { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid      { grid-template-columns: repeat(2, 1fr); }
}