/* ==========================================================================
   XZOSUP — Minimalist Modern Agency Design System
   Aesthetic: Clean editorial, generous whitespace, crisp dividers, high contrast.
   ========================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Colors */
  --bg-primary: #FFFFFF;
  --bg-secondary: #FAFAFA;
  --bg-tertiary: #F4F4F5;
  --bg-subtle: #F8F9FA;
  
  --text-primary: #09090B;
  --text-secondary: #3F3F46;
  --text-muted: #71717A;
  --text-light: #A1A1AA;
  
  --brand-blue: #0056D2;
  --brand-blue-hover: #0043A8;
  --brand-blue-light: #EFF6FF;
  --brand-blue-border: #BFDBFE;
  
  --border-color: #E4E4E7;
  --border-subtle: #EEEEF0;
  --border-dark: #18181B;

  --card-bg: #FFFFFF;
  --card-border: #E4E4E7;
  --card-hover-border: #A1A1AA;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Spacing */
  --container-max: 1200px;
  --container-wide: 1320px;
  --container-narrow: 840px;
  --container-pad: 1.5rem;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;

  /* Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  letter-spacing: -0.01em;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -999px;
  left: 1rem;
  background: var(--text-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 10000;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.875rem;
}
.skip-link:focus {
  top: 1rem;
}

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

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

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

button {
  cursor: pointer;
  background: none;
  border: none;
}

ul, ol {
  list-style: none;
}

/* Focus States */
:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 2px;
}

/* --- Container & Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

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

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

.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  border-bottom: 1px solid var(--border-color);
}

.section-hero {
  padding-top: 5.5rem;
  padding-bottom: 5rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-primary);
}

.section-light {
  background-color: var(--bg-secondary);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  font-weight: 600;
}

h3 {
  font-size: 1.35rem;
  font-weight: 600;
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.65;
}

p.lead {
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.6;
}

.text-muted {
  color: var(--text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--brand-blue);
  border-radius: 50%;
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-header.text-center {
  text-align: center;
}

.section-header.text-center .eyebrow {
  justify-content: center;
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  max-width: 680px;
}

.section-header.text-center p {
  margin-left: auto;
  margin-right: auto;
}

/* Thin horizontal separator */
.divider {
  width: 100%;
  height: 1px;
  background-color: var(--border-color);
  margin: 3.5rem 0;
  border: none;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  text-align: center;
  white-space: nowrap;
  min-height: 44px;
}

.btn:hover {
  transform: translateY(-1.5px);
}

.btn:active {
  transform: translateY(0.5px);
}

.btn-primary {
  background-color: var(--text-primary);
  color: #FFFFFF;
  border: 1px solid var(--text-primary);
}
.btn-primary:hover {
  background-color: #27272A;
  border-color: #27272A;
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(9, 9, 11, 0.12);
}

.btn-brand {
  background-color: var(--brand-blue);
  color: #FFFFFF;
  border: 1px solid var(--brand-blue);
}
.btn-brand:hover {
  background-color: var(--brand-blue-hover);
  border-color: var(--brand-blue-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(0, 86, 210, 0.2);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-outline:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-primary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  min-height: 38px;
}

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF;
  border: 1px solid #25D366;
  font-weight: 500;
}
.btn-whatsapp:hover {
  background-color: #1EBE5D;
  border-color: #1EBE5D;
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.25);
}

.btn-icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Button Group */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
}

/* --- Header & Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.site-header.nav-hidden {
  transform: translateY(-100%);
}

.scroll-progress-bar {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 2px;
  width: 0%;
  background-color: var(--brand-blue);
  z-index: 1001;
  pointer-events: none;
  transition: width 0.08s ease-out;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.navbar-logo-img {
  height: 48px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  display: block;
}

.navbar-logo-mark {
  height: 32px;
  width: 32px;
  object-fit: contain;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link.active {
  color: var(--brand-blue);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--brand-blue);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  padding: 0.5rem;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: transparent;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-toggle svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
}

/* --- Hero Section Specifics --- */
.hero-content {
  max-width: 900px;
}

.hero-content h1 {
  margin-bottom: 1.5rem;
}

.hero-content p.lead {
  margin-bottom: 2.25rem;
  max-width: 740px;
}

.hero-meta {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.hero-meta-item h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  font-weight: 600;
}

.hero-meta-item p {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* --- Simple Grid Systems --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

/* Editorial Minimalist Cards */
.editorial-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
}

.editorial-card:hover {
  border-color: #A1A1AA;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

.card-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-weight: 600;
}

.card-icon {
  width: 36px;
  height: 36px;
  stroke: var(--text-primary);
  stroke-width: 1.75;
  fill: none;
  margin-bottom: 1.25rem;
  transition: transform 0.25s ease, stroke 0.25s ease;
}

.editorial-card:hover .card-icon {
  transform: translateY(-2px);
  stroke: var(--brand-blue);
}

.editorial-card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.editorial-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-blue);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

.card-link:hover {
  color: var(--brand-blue-hover);
}

/* Arrow Slide Micro-Interaction */
.card-link .arrow,
.btn .arrow {
  display: inline-block;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-link:hover .arrow,
.btn:hover .arrow {
  transform: translateX(4px);
}

/* Feature List Inside Card */
.feature-list {
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.feature-list li svg {
  width: 16px;
  height: 16px;
  stroke: var(--brand-blue);
  stroke-width: 2;
  fill: none;
  flex-shrink: 0;
  margin-top: 3px;
}

/* --- What We Build / Capability List --- */
.capability-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--border-color);
  align-items: baseline;
}

.capability-row:first-of-type {
  border-top: 1px solid var(--border-color);
}

.capability-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.capability-desc {
  font-size: 1rem;
  color: var(--text-secondary);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-color);
}

/* --- Leadership Section (Actual Founders) --- */
.founder-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.founder-card {
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.founder-card:hover {
  border-color: #A1A1AA;
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.04);
}

.founder-photo-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 4.75;
  background-color: var(--bg-tertiary);
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.founder-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), filter 0.4s ease;
}

.founder-card:hover .founder-photo {
  transform: scale(1.03);
  filter: contrast(1.03) brightness(1.01);
}

.founder-info {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.founder-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.founder-role {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-blue);
  margin-bottom: 1rem;
}

.founder-bio {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.founder-contacts {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Filter Bar (Services & FAQ & Portfolio) --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1rem;
}

.filter-btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  border: 1px solid transparent;
  background: transparent;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

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

/* --- FAQ Accordion --- */
.faq-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-color);
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  padding: 1.5rem 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  border: none;
  gap: 1.5rem;
}

.faq-question:hover {
  color: var(--brand-blue);
}

.faq-icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
  padding: 0 0;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding-bottom: 1.5rem;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
}

/* --- Pricing Cards --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.05);
  border-color: #A1A1AA;
}

.pricing-card.featured {
  border: 2px solid var(--text-primary);
}

.pricing-card.featured:hover {
  border-color: var(--text-primary);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.08);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 2rem;
  background: var(--text-primary);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-xs);
}

.pricing-plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing-plan-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  min-height: 44px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.pricing-amount {
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
}

.pricing-features li svg {
  width: 16px;
  height: 16px;
  stroke: var(--brand-blue);
  stroke-width: 2.5;
  fill: none;
  flex-shrink: 0;
  margin-top: 3px;
}

/* Pricing Interactive Calculator */
.calculator-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2.5rem;
  margin-top: 4rem;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2.5rem;
  align-items: center;
}

.calc-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.calc-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.925rem;
  font-weight: 500;
  transition: border-color var(--transition-fast);
}

.calc-checkbox-label:hover {
  border-color: var(--text-primary);
}

.calc-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--brand-blue);
}

.calc-result-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2rem;
  text-align: center;
}

.calc-result-card .calc-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 600;
}

.calc-result-card .calc-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0.5rem 0 1rem;
}

/* --- Forms & Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.form-label .required {
  color: #DC2626;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--brand-blue);
  outline: none;
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

/* Service Checkboxes in Contact Form */
.service-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.checkbox-item input {
  accent-color: var(--brand-blue);
  width: 16px;
  height: 16px;
}

/* Contact Info Sidebar */
.contact-info-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-detail-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-detail-icon {
  width: 22px;
  height: 22px;
  stroke: var(--text-primary);
  stroke-width: 1.75;
  fill: none;
  margin-top: 2px;
  flex-shrink: 0;
}

.contact-detail-item h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-detail-item p, .contact-detail-item a {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-detail-item a:hover {
  color: var(--brand-blue);
}

.form-alert {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.925rem;
  margin-bottom: 1.5rem;
}

.form-alert.success {
  background-color: #ECFDF5;
  border: 1px solid #A7F3D0;
  color: #065F46;
  display: block;
}

.form-alert.error {
  background-color: #FEF2F2;
  border: 1px solid #FECACA;
  color: #991B1B;
  display: block;
}

/* --- Portfolio Disclaimer Banner & Prototype Cards --- */
.transparent-notice {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--brand-blue);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 3rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.transparent-notice svg {
  width: 22px;
  height: 22px;
  stroke: var(--brand-blue);
  stroke-width: 2;
  fill: none;
  flex-shrink: 0;
  margin-top: 2px;
}

.transparent-notice p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

.portfolio-card {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.portfolio-card:hover {
  transform: translateY(-3px);
  border-color: #A1A1AA;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.04);
}

.portfolio-preview {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
}

.portfolio-type-badge {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.725rem;
  padding: 0.25rem 0.6rem;
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.portfolio-schematic {
  margin: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.portfolio-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-body h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.portfolio-body p {
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

/* --- How We Work Steps --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.process-step {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 2rem;
  background: #FFFFFF;
  position: relative;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.process-step:hover {
  transform: translateY(-3px);
  border-color: #A1A1AA;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
}

.process-step-num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-blue);
  margin-bottom: 1rem;
}

.process-step h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.process-step p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Clean Minimal CTA Banner --- */
.cta-banner {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4rem 3rem;
  text-align: center;
}

.cta-banner h2 {
  max-width: 650px;
  margin: 0 auto 1rem;
}

.cta-banner p {
  max-width: 580px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
}

/* --- Minimal Footer --- */
.site-footer {
  background-color: #FFFFFF;
  border-top: 1px solid var(--border-color);
  padding-top: 4.5rem;
  padding-bottom: 2.5rem;
  margin-top: auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--border-color);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-logo-img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 4px;
  background: #FFFFFF;
}

.footer-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.925rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--brand-blue);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--text-muted);
  stroke-width: 1.75;
  fill: none;
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a:hover {
  color: var(--text-primary);
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  background-color: #25D366;
  color: #FFFFFF;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
  z-index: 999;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.whatsapp-float:hover {
  background-color: #1EBE5D;
  transform: translateY(-2px);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

/* --- Tasteful Minimalist Animations & Scroll Reveal --- */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content > * {
  animation: heroFadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

.hero-content .eyebrow {
  animation-delay: 0.05s;
}

.hero-content h1 {
  animation-delay: 0.12s;
}

.hero-content p.lead {
  animation-delay: 0.2s;
}

.hero-content .btn-group {
  animation-delay: 0.28s;
}

.hero-meta {
  animation: heroFadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
  animation-delay: 0.35s;
}

/* Subtle Scroll Reveal Class */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1), transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for items in grids */
.grid-2 > .reveal:nth-child(2),
.grid-3 > .reveal:nth-child(2),
.grid-4 > .reveal:nth-child(2),
.founder-grid > .reveal:nth-child(2) {
  transition-delay: 0.08s;
}

.grid-3 > .reveal:nth-child(3),
.grid-4 > .reveal:nth-child(3) {
  transition-delay: 0.16s;
}

.grid-4 > .reveal:nth-child(4) {
  transition-delay: 0.24s;
}

/* Accessibility: respect user prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (Zero Overflow Verification)
   Tested: 320px, 360px, 375px, 390px, 414px, 768px, 1024px, 1280px, 1440px
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-meta {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }

  .footer-top {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .footer-brand {
    grid-column: span 3;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .calc-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .main-nav {
    display: none;
  }

  .nav-actions .btn-sm {
    display: none;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  /* Mobile Drawer Active State */
  .mobile-drawer {
    display: block;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #FFFFFF;
    z-index: 999;
    padding: 1.5rem;
    overflow-y: auto;
    border-top: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .mobile-drawer.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
  }

  .mobile-nav-link {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-subtle);
    display: block;
  }

  .mobile-nav-link.active {
    color: var(--brand-blue);
  }

  .mobile-drawer-cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .founder-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .capability-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .hero-meta {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .service-checkbox-grid {
    grid-template-columns: 1fr;
  }

  .calc-options {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-brand {
    grid-column: span 1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 640px) {
  :root {
    --container-pad: 1rem;
  }

  .section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .section-hero {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: 1fr;
  }

  .editorial-card {
    padding: 1.5rem;
  }

  .cta-banner {
    padding: 2.5rem 1.5rem;
  }

  .btn-group {
    flex-direction: column;
    width: 100%;
  }

  .btn-group .btn {
    width: 100%;
  }

  .calculator-box {
    padding: 1.5rem;
  }
}

/* Viewport 320px ultra-narrow check */
@media (max-width: 360px) {
  h1 {
    font-size: 1.85rem;
  }

  .navbar-logo-img {
    max-width: 130px;
  }

  .pricing-amount {
    font-size: 2.25rem;
  }
}