/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav.scrolled {
  background: rgba(10, 14, 23, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo img {
  height: 28px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--gap-xl);
}

.nav__link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  position: relative;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__cta {
  margin-left: var(--gap-md);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu overlay */
.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 23, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--gap-xl);
}

.nav__mobile.open {
  display: flex;
}

.nav__mobile a {
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.nav__mobile a:hover {
  color: var(--accent);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 23, 0.75);
  z-index: 1;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.hero__canvas canvas {
  width: 100%;
  height: 100%;
}

.hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 800px;
  padding: 0 var(--container-px);
}

.hero__badge {
  margin-bottom: var(--gap-xl);
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: var(--fw-extrabold);
  letter-spacing: -0.02em;
  margin-bottom: var(--gap-lg);
  line-height: 1.1;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--gap-2xl);
  line-height: 1.7;
}

.hero__ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap-lg);
  flex-wrap: wrap;
}

/* ===== SERVICES ===== */
.services .card__icon svg {
  width: 48px;
  height: 48px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.5;
}

/* ===== ABOUT ===== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-2xl);
  align-items: center;
}

.about__text h2 {
  font-size: var(--fs-h2);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--gap-lg);
}

.about__text p {
  color: var(--text-secondary);
  margin-bottom: var(--gap-lg);
  line-height: 1.8;
}

.about__visual {
  position: relative;
  height: 400px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border);
}

.about__visual-inner {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__visual-text {
  font-size: 4rem;
  font-weight: var(--fw-extrabold);
  opacity: 0.08;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.about__anim {
  width: 90%;
  height: 90%;
}

.about__vision {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  margin-top: var(--gap-2xl);
}

.vision-card {
  padding: var(--gap-lg);
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
}

.vision-card__title {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--gap-sm);
  background: linear-gradient(135deg, #10b981, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.vision-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-xl);
  margin-top: var(--gap-2xl);
  padding-top: var(--gap-2xl);
  border-top: 1px solid var(--border);
}

/* ===== CASE STUDIES ===== */
.projects__video {
  margin-bottom: var(--gap-2xl);
}

.projects__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-surface);
}

.projects__video-wrapper iframe,
.projects__video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

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

.project-card__image {
  height: 200px;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.project-card__image-inner {
  position: absolute;
  inset: 0;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-card__image-inner {
  transform: scale(1.05);
}

.project-card__image-gradient {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(to top, var(--bg-surface), transparent);
  z-index: 1;
}

.project-card__badge {
  position: absolute;
  top: var(--gap-md);
  left: var(--gap-md);
  z-index: 2;
}

.project-card__body {
  padding: var(--gap-lg);
}

.project-card__title {
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: var(--gap-sm);
}

.project-card__metric {
  font-size: var(--fs-small);
  color: var(--success);
  font-weight: var(--fw-medium);
  margin-bottom: var(--gap-md);
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-sm);
  color: var(--accent);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
}

/* Project card placeholder gradients */
.project-card__image-inner--1 {
  background: linear-gradient(135deg, #0f172a, #1e3a5f, #0d4f6e);
}

.project-card__image-inner--2 {
  background: linear-gradient(135deg, #0f172a, #2d1b4e, #1a1145);
}

.project-card__image-inner--3 {
  background: linear-gradient(135deg, #0f172a, #1b3d2f, #0d4a3b);
}

/* ===== AI DEMO ===== */
.demo__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-2xl);
  align-items: start;
}

.demo__upload {
  background: var(--bg-surface);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: var(--gap-2xl);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-base), background var(--transition-base);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.demo__upload:hover,
.demo__upload.dragover {
  border-color: var(--accent);
  background: rgba(16, 185, 129, 0.05);
}

.demo__upload-icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--gap-lg);
  color: var(--text-secondary);
}

.demo__upload-text {
  color: var(--text-secondary);
  margin-bottom: var(--gap-sm);
}

.demo__upload-hint {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  opacity: 0.6;
}

.demo__preview {
  display: none;
  width: 100%;
}

.demo__preview img {
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  border-radius: var(--radius-md);
  margin-bottom: var(--gap-md);
}

.demo__samples {
  display: flex;
  gap: var(--gap-md);
  margin-top: var(--gap-lg);
  justify-content: center;
}

.demo__sample {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

.demo__sample:hover {
  border-color: var(--accent);
}

.demo__results {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--gap-xl);
}

.demo__results h3 {
  font-size: var(--fs-h3);
  margin-bottom: var(--gap-lg);
}

.demo__loading {
  text-align: center;
  padding: var(--gap-2xl) 0;
  color: var(--text-secondary);
}

.demo__loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto var(--gap-md);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.demo__chart-container {
  display: none;
  height: 250px;
}

.demo__status {
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--fs-small);
  padding: var(--gap-xl) 0;
}

/* ===== BLOG ===== */
.blog-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

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

.blog-card__bar {
  height: 4px;
}

.blog-card__bar--1 { background: var(--accent); }
.blog-card__bar--2 { background: var(--accent-secondary); }
.blog-card__bar--3 { background: var(--success); }

.blog-card__body {
  padding: var(--gap-xl);
}

.blog-card__meta {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  margin-bottom: var(--gap-md);
}

.blog-card__category {
  color: var(--accent);
  font-weight: var(--fw-medium);
}

.blog-card__title {
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: var(--gap-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__excerpt {
  color: var(--text-secondary);
  font-size: var(--fs-small);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--gap-lg);
}

.blog-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-sm);
  color: var(--accent);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
}

/* ===== CONTACT ===== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-2xl);
}

.contact__form-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--gap-xl);
}

.contact__form-wrapper h3 {
  font-size: var(--fs-h3);
  margin-bottom: var(--gap-xl);
}

.contact__info h3 {
  font-size: var(--fs-h3);
  margin-bottom: var(--gap-xl);
}

.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: var(--gap-md);
  margin-bottom: var(--gap-xl);
}

.contact__detail-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-md);
  background: rgba(16, 185, 129, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.contact__detail-icon svg {
  width: 20px;
  height: 20px;
}

.contact__detail-content {
  flex: 1;
}

.contact__detail-label {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.contact__detail-value {
  font-size: var(--fs-body);
  color: var(--text-primary);
  line-height: 1.6;
}

.contact__detail-value a {
  color: var(--accent);
  transition: color var(--transition-fast);
}

.contact__detail-value a:hover {
  color: var(--accent-hover);
}

.contact__map {
  margin-top: var(--gap-xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  height: 200px;
}

.contact__map iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: invert(90%) hue-rotate(180deg) brightness(0.8) contrast(1.2);
}

.form-message {
  display: none;
  padding: var(--gap-md);
  border-radius: var(--radius-md);
  font-size: var(--fs-small);
  margin-top: var(--gap-md);
}

.form-message--success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
}

.form-message--error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

/* ===== CUSTOMERS ===== */
.customers {
  padding-bottom: var(--gap-2xl);
  overflow: hidden;
}

.customers .section-header {
  margin-bottom: var(--gap-xl);
}

.customers__marquee {
  position: relative;
  width: 100%;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.customers__track {
  display: flex;
  align-items: center;
  gap: var(--gap-xl);
  width: max-content;
  animation: marquee 40s linear infinite;
}

.customers__track:hover {
  animation-play-state: paused;
}

.customers__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 160px;
  height: 80px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #ffffff;
  padding: var(--gap-sm);
  transition: all var(--transition);
  text-decoration: none;
}

.customers__logo:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
  transform: translateY(-2px);
}

.customers__logo img {
  max-width: 120px;
  max-height: 50px;
  object-fit: contain;
}

.customers__logo-text {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 0.85rem;
  color: #1e293b;
  text-align: center;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.customers__logo:hover .customers__logo-text {
  color: #10b981;
}

.customers__logo--dark {
  background: #1e293b;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: var(--gap-2xl) 0 var(--gap-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--gap-2xl);
  margin-bottom: var(--gap-2xl);
}

.footer__brand p {
  color: var(--text-secondary);
  font-size: var(--fs-small);
  margin-top: var(--gap-md);
  line-height: 1.7;
}

.footer__socials {
  display: flex;
  gap: var(--gap-md);
  margin-top: var(--gap-lg);
}

.footer__social {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.footer__social:hover {
  border-color: var(--accent);
  background: rgba(16, 185, 129, 0.1);
}

.footer__social svg {
  width: 18px;
  height: 18px;
  color: var(--text-secondary);
}

.footer__heading {
  font-size: var(--fs-small);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: var(--gap-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
}

.footer__link {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--accent);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--gap-lg);
  border-top: 1px solid var(--border);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

.footer__made {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  margin-left: var(--gap-md);
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle__sun { display: none; }
.theme-toggle__moon { display: block; }

[data-theme="light"] .theme-toggle__sun { display: block; }
[data-theme="light"] .theme-toggle__moon { display: none; }

/* ===== LIGHT MODE OVERRIDES ===== */
[data-theme="light"] .nav.scrolled {
  background: rgba(248, 250, 252, 0.95);
}

[data-theme="light"] .nav__mobile {
  background: rgba(248, 250, 252, 0.98);
}

[data-theme="light"] .hero__overlay {
  background: rgba(248, 250, 252, 0.8);
}


[data-theme="light"] .demo__upload:hover,
[data-theme="light"] .demo__upload.dragover {
  background: rgba(5, 150, 105, 0.05);
}

[data-theme="light"] .contact__detail-icon {
  background: rgba(5, 150, 105, 0.1);
}

[data-theme="light"] .footer__social:hover {
  background: rgba(5, 150, 105, 0.1);
}

[data-theme="light"] .project-card__image-inner--1 {
  background: linear-gradient(135deg, #e0f2fe, #bae6fd, #7dd3fc);
}

[data-theme="light"] .project-card__image-inner--2 {
  background: linear-gradient(135deg, #ede9fe, #ddd6fe, #c4b5fd);
}

[data-theme="light"] .project-card__image-inner--3 {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0, #6ee7b7);
}

[data-theme="light"] .customers__logo:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(5, 150, 105, 0.12);
}

[data-theme="light"] .customers__logo:hover .customers__logo-text {
  color: var(--accent);
}

[data-theme="light"] .scroll-indicator svg {
  filter: drop-shadow(0 0 6px rgba(5, 150, 105, 0.6));
}