/* ==========================================================================
   Studio Six — Components
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Global Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: var(--z-header);
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), border-color var(--transition-normal), transform var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(7, 7, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

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

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.logo-symbol {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent-primary) 0%, #3026a6 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.05em;
  box-shadow: 0 4px 12px rgba(85, 72, 242, 0.35);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.1;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Desktop Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.4vw, 2.85rem);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding-block: var(--space-xs);
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition-normal);
  border-radius: var(--radius-pill);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--text-primary);
}

/* Header Action Group */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-phone-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.header-phone-link:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.header-phone-link svg {
  width: 14px;
  height: 14px;
  color: var(--accent-cyan);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  position: relative;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: calc(var(--z-header) + 1);
}

.hamburger-line {
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.mobile-menu-toggle.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(7, 7, 10, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: var(--z-header);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-nav-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--text-primary);
  transform: translateX(8px);
}

.mobile-nav-footer {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   2. Buttons & Interactive Controls
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.6rem 1.2rem;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 1.1rem 2.2rem;
  font-size: var(--text-base);
}

/* Primary Magnetic Glow Button */
.btn-primary {
  background: linear-gradient(135deg, #6452f7 0%, #4c3be6 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 0 1px rgba(124, 77, 255, 0.22), 0 6px 24px -2px rgba(85, 72, 242, 0.45), inset 0 1px 0 0 rgba(255, 255, 255, 0.32);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-normal), background var(--transition-fast);
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.55), transparent);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #7160f8 0%, #5544ee 100%);
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(124, 77, 255, 0.4), 0 12px 32px rgba(85, 72, 242, 0.65), inset 0 1px 0 0 rgba(255, 255, 255, 0.45);
  color: #ffffff;
}

.btn-primary .arrow-icon {
  transition: transform var(--transition-fast);
}

.btn-primary:hover .arrow-icon {
  transform: translateX(4px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Secondary Translucent Dark Glass Button */
.btn-secondary {
  background: rgba(14, 16, 26, 0.5);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.06);
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-2px);
  color: #ffffff;
}

/* Technical Design Accents & Hairlines */
.tech-coord-stamp {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.tech-crosshair {
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 0.75rem;
}

.tech-sep {
  opacity: 0.3;
}

.tech-corner-bracket {
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
  border-color: rgba(255, 255, 255, 0.18);
  border-style: solid;
}

.tech-corner-bracket.tl {
  top: 1rem;
  left: 1rem;
  border-width: 1px 0 0 1px;
}

.tech-corner-bracket.br {
  bottom: 1rem;
  right: 1rem;
  border-width: 0 1px 1px 0;
}

/* Single Glass Information Element */
.hero-glass-chip {
  position: absolute;
  bottom: 2rem;
  left: 0;
  z-index: 25;
  background: rgba(14, 16, 28, 0.82);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(124, 77, 255, 0.45);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.06) inset,
    0 0 25px rgba(124, 77, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.35rem;
  width: max-content;
  max-width: 320px;
  pointer-events: auto;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-glass-chip:hover {
  border-color: rgba(0, 240, 255, 0.6);
  transform: translateY(-3px);
  box-shadow: 
    0 24px 48px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(0, 240, 255, 0.2) inset,
    0 0 35px rgba(124, 77, 255, 0.4);
}

.chip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.chip-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse-dot 2.2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.5; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
}

.chip-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  font-weight: 600;
}

.chip-title {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.01em;
  margin-bottom: 0.3rem;
}

.chip-capabilities {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.6875rem;
  color: var(--text-secondary);
}

.chip-capabilities span {
  font-family: var(--font-mono);
}

.chip-sep {
  color: rgba(255, 255, 255, 0.2);
}

/* Refined Vertical Scroll Indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.65rem;
  z-index: 8;
  pointer-events: none;
}

.scroll-indicator-text {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.28em;
  color: var(--text-muted);
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.scroll-indicator-track {
  width: 1px;
  height: 44px;
  background: rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.scroll-indicator-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-primary));
  animation: scroll-indicator-anim 2.2s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

@keyframes scroll-indicator-anim {
  0% { transform: translateY(-100%); opacity: 0; }
  30% { opacity: 1; }
  70% { opacity: 1; }
  100% { transform: translateY(200%); opacity: 0; }
}

/* WhatsApp Brand Button */
.btn-whatsapp {
  background-color: var(--accent-whatsapp);
  color: #ffffff;
  box-shadow: 0 4px 20px -2px rgba(37, 211, 102, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-whatsapp:hover {
  background-color: var(--accent-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.55);
  color: #ffffff;
}

/* Arrow Icon Motion */
.btn .arrow-icon {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.btn:hover .arrow-icon {
  transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   3. Cards & Surfaces
   -------------------------------------------------------------------------- */
.glass-card {
  background: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-subtle);
  transition: border-color var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-elevated);
}

/* --------------------------------------------------------------------------
   4. Form Controls (Inquiry Configurator)
   -------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label .optional {
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--text-muted);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.95rem 1.25rem;
  background-color: rgba(14, 15, 22, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent-primary);
  background-color: var(--bg-surface-elevated);
  box-shadow: 0 0 0 3px rgba(85, 72, 242, 0.2);
}

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

/* Service Pill Radios / Selectors */
.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.pill-option {
  position: relative;
}

.pill-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.pill-label {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 1.15rem;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  user-select: none;
}

.pill-label:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.06);
}

.pill-option input[type="radio"]:checked + .pill-label {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(85, 72, 242, 0.4);
}

.pill-option input[type="radio"]:focus-visible + .pill-label {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

/* Form Feedback & Toast Messages */
.form-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
  font-size: var(--text-sm);
  line-height: 1.5;
  display: none;
}

.form-alert.success {
  display: block;
  background-color: rgba(37, 211, 102, 0.12);
  border: 1px solid rgba(37, 211, 102, 0.35);
  color: #bbf7d0;
}

.form-alert.error {
  display: block;
  background-color: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fecaca;
}

/* Modal Window for Work Previews */
.project-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: var(--z-modal);
  background-color: rgba(5, 5, 8, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 3vw, 2.5rem);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.project-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.project-modal-dialog {
  width: 100%;
  max-width: 900px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  position: relative;
  transform: translateY(20px) scale(0.98);
  transition: transform var(--transition-normal);
}

.project-modal.open .project-modal-dialog {
  transform: translateY(0) scale(1);
}

.project-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
  z-index: 10;
}

.project-modal-close:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: rotate(90deg);
}

/* Responsive Navigation Rules */
@media (max-width: 1024px) {
  .nav-menu,
  .header-actions .btn {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
}

/* ==========================================================================
   Award Recognition Badges (research.md Section 3.2 #2)
   ========================================================================== */
.award-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  background: rgba(255, 215, 0, 0.08);
  border: 1px solid rgba(255, 215, 0, 0.25);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #ffd700;
  letter-spacing: 0.04em;
}

.award-badge-pill svg {
  width: 12px;
  height: 12px;
  stroke: #ffd700;
}

/* ==========================================================================
   Live Timezone Clocks (Footer)
   ========================================================================== */
.timezone-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 3rem;
}

.tz-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.tz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tz-city {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.tz-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.tz-time {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.03em;
}

.tz-card.is-hq .tz-city {
  color: var(--accent-cyan);
}
.tz-card.is-hq .tz-time {
  color: #ffffff;
  text-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
}

@media (max-width: 768px) {
  .timezone-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

/* ==========================================================================
   Back To Top Inertial Trigger
   ========================================================================== */
.back-to-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: all var(--transition-normal);
  z-index: 90;
}

.back-to-top-btn.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-btn:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary-hover);
  box-shadow: 0 0 20px rgba(85, 72, 242, 0.4);
  transform: translateY(-3px);
}