/* ==========================================================================
   CodeTak Premium Design System
   ========================================================================== */

/* 1. Global Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-canvas);
  color: var(--text-secondary);
  overflow-x: hidden;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
}

/* 2. Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.display-title {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--text-highlight);
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text-highlight);
  margin-bottom: var(--space-xs);
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: var(--space-xl);
  line-height: 1.55;
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--radius-full);
  background: var(--bg-surface-2);
  color: var(--accent-emerald);
  border: 1px solid var(--border-subtle);
  margin-bottom: var(--space-sm);
}

.tag-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.mono-spec {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* 3. Containers & Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  max-width: var(--container-narrow);
}

.site-section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  position: relative;
}

.site-section-border {
  border-top: 1px solid var(--border-subtle);
}

/* 4. Buttons & Interactive Links */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--text-highlight);
  color: #000000;
  border-color: rgba(255, 255, 255, 0.9);
}

.btn-primary:hover {
  background-color: #E2E8F0;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(255, 255, 255, 0.2);
}

.btn-secondary {
  background-color: var(--bg-surface-2);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-3);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  color: var(--text-highlight);
}

.btn-whatsapp {
  background-color: #25D366;
  color: #072612;
  font-weight: 700;
  border-color: #25D366;
}

.btn-whatsapp:hover {
  background-color: #20BA5A;
  box-shadow: 0 10px 25px -5px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
}

.btn-text {
  padding: 0.5rem 0;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  border-bottom: 1px solid transparent;
}

.btn-text:hover {
  color: var(--accent-emerald);
  border-bottom-color: var(--accent-emerald);
}

/* 5. Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(8, 11, 16, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.1rem 0;
  transition: padding var(--transition-fast);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-highlight);
  letter-spacing: -0.03em;
}

.site-logo-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent-azure), var(--accent-emerald));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 800;
}

.main-navigation {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-navigation ul {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.main-navigation a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a {
  color: var(--text-highlight);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* 6. Hero Section & Browser Mockup */
.hero-section {
  padding-top: clamp(3.5rem, 7vw, 6rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
  position: relative;
  overflow: hidden;
}

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

.hero-content {
  max-width: 780px;
}

.hero-subhead {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  color: var(--text-secondary);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--space-xl);
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
}

.trust-item {
  display: flex;
  flex-direction: column;
}

.trust-number {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-highlight);
  font-family: var(--font-mono);
}

.trust-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Browser Mockup Component */
.browser-mockup {
  background: var(--bg-surface-1);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-mockup);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  position: relative;
}

.browser-header {
  background: var(--bg-surface-2);
  padding: 0.8rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background-color: #EF4444; }
.dot-yellow { background-color: #F59E0B; }
.dot-green { background-color: #10B981; }

.browser-url-bar {
  flex: 1;
  max-width: 420px;
  background: var(--bg-surface-1);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border-subtle);
}

.browser-status-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-emerald);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
}

.browser-body {
  padding: 1.5rem;
  background-color: var(--bg-canvas);
  position: relative;
  min-height: 380px;
}

/* 7. Selected Work / Projects */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.project-card {
  background: var(--bg-surface-1);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

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

.project-visual-slot {
  background: var(--bg-surface-2);
  padding: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  border-right: 1px solid var(--border-subtle);
}

.project-info-slot {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-meta-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-sm);
}

.project-category {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-azure);
  text-transform: uppercase;
}

.project-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-3);
  color: var(--text-muted);
}

.project-title {
  font-size: 1.85rem;
  margin-bottom: 0.75rem;
  color: var(--text-highlight);
}

.project-excerpt {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.tech-stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-surface-2);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

/* 8. Featured Case Study */
.case-study-banner {
  background: radial-gradient(circle at 100% 0%, rgba(59, 130, 246, 0.08), transparent 50%), var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
}

.case-study-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.case-breakdown-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.breakdown-step {
  display: flex;
  gap: 1.25rem;
}

.step-number {
  font-family: var(--font-mono);
  font-weight: 800;
  color: var(--accent-emerald);
  font-size: 1.1rem;
}

.step-body h4 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.step-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* 9. Capabilities Matrix */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.capability-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition-fast);
}

.capability-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-surface-2);
  transform: translateY(-3px);
}

.capability-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-emerald);
  margin-bottom: 1.25rem;
}

.capability-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-highlight);
}

.capability-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

.capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.capability-tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.45rem;
  background: var(--bg-canvas);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* 10. Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.service-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--text-highlight);
}

.service-deliverables {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.service-deliverables li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.service-deliverables li::before {
  content: "✓";
  color: var(--accent-emerald);
  font-weight: bold;
}

/* 11. Founder Spotlight */
.founder-card {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 3.5rem;
  align-items: center;
}

.founder-photo-wrapper {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-medium);
  background: var(--bg-surface-2);
}

.founder-photo {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  object-position: top center;
}

.founder-lead-badge {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  right: 0.75rem;
  background: rgba(8, 11, 16, 0.9);
  backdrop-filter: blur(8px);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-emerald);
  border: 1px solid var(--border-subtle);
  text-align: center;
}

.founder-content h3 {
  font-size: 2rem;
  color: var(--text-highlight);
  margin-bottom: 0.5rem;
}

.founder-role-title {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-azure);
  margin-bottom: 1.25rem;
}

.founder-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

/* 12. Process Pipeline */
.process-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
}

.process-step {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  position: relative;
}

.process-number {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent-azure);
  margin-bottom: 0.75rem;
}

.process-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-highlight);
  margin-bottom: 0.4rem;
}

.process-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 13. FAQ Component */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--border-medium);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-highlight);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--accent-azure);
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
  color: var(--accent-emerald);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 14. Final Conversion CTA */
.cta-banner {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(16, 185, 129, 0.12)), var(--bg-surface-1);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: clamp(3rem, 6vw, 5rem);
  text-align: center;
}

.cta-banner h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--text-highlight);
  margin-bottom: 1rem;
}

.cta-banner p {
  font-size: 1.15rem;
  max-width: 620px;
  margin: 0 auto 2rem auto;
  color: var(--text-secondary);
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

/* 15. Semantic Footer */
.site-footer {
  background: var(--bg-surface-1);
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-lg);
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: var(--space-2xl);
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 1rem;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  font-family: var(--font-mono);
  color: var(--text-primary);
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--text-highlight);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
}