/* ============================================
   PANTERA COWORK LANDING — DESIGN TOKENS
   ============================================ */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Font Families */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* ============================================
   LIGHT MODE (Pantera Purple + Amber)
   ============================================ */
:root, [data-theme="light"] {
  --color-bg:             #faf9f7;
  --color-surface:        #ffffff;
  --color-surface-2:      #f5f3f0;
  --color-surface-offset: #eeebe6;
  --color-border:         #d6d3cd;
  --color-divider:        #e2dfd9;

  --color-text:           #1a1625;
  --color-text-muted:     #6b6680;
  --color-text-faint:     #a09cad;
  --color-text-inverse:   #faf9f7;

  --color-primary:        #5B21B6;
  --color-primary-hover:  #4C1D95;
  --color-primary-light:  #EDE9FE;
  --color-primary-subtle: #DDD6FE;

  --color-accent:         #D97706;
  --color-accent-hover:   #B45309;
  --color-accent-light:   #FEF3C7;

  --color-success:        #059669;
  --color-success-light:  #D1FAE5;

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 280 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.02 280 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.02 280 / 0.12);
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] {
  --color-bg:             #0f0b1a;
  --color-surface:        #1a1528;
  --color-surface-2:      #221c33;
  --color-surface-offset: #2a2340;
  --color-border:         #3d3556;
  --color-divider:        #2f2847;

  --color-text:           #e8e5f0;
  --color-text-muted:     #a099b5;
  --color-text-faint:     #6b6480;
  --color-text-inverse:   #0f0b1a;

  --color-primary:        #8B5CF6;
  --color-primary-hover:  #A78BFA;
  --color-primary-light:  #2e2150;
  --color-primary-subtle: #3b2d63;

  --color-accent:         #F59E0B;
  --color-accent-hover:   #FBBF24;
  --color-accent-light:   #3d3020;

  --color-success:        #34D399;
  --color-success-light:  #1a3d2e;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0f0b1a;
    --color-surface:        #1a1528;
    --color-surface-2:      #221c33;
    --color-surface-offset: #2a2340;
    --color-border:         #3d3556;
    --color-divider:        #2f2847;
    --color-text:           #e8e5f0;
    --color-text-muted:     #a099b5;
    --color-text-faint:     #6b6480;
    --color-text-inverse:   #0f0b1a;
    --color-primary:        #8B5CF6;
    --color-primary-hover:  #A78BFA;
    --color-primary-light:  #2e2150;
    --color-primary-subtle: #3b2d63;
    --color-accent:         #F59E0B;
    --color-accent-hover:   #FBBF24;
    --color-accent-light:   #3d3020;
    --color-success:        #34D399;
    --color-success-light:  #1a3d2e;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* ============================================
   HEADER / NAV
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  padding: var(--space-3) 0;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
}

.logo svg,
.logo img { flex-shrink: 0; }

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.logo-text span { color: var(--color-primary); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
}

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

.lang-toggle {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
  cursor: pointer;
  transition: all var(--transition-interactive);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lang-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0 clamp(var(--space-12), 8vw, var(--space-24));
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 20%, oklch(from var(--color-primary) l c h / 0.08), transparent),
    radial-gradient(ellipse 60% 50% at 70% 80%, oklch(from var(--color-accent) l c h / 0.05), transparent);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 768px) {
  .hero .container {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-12);
  }
}

.hero-content { max-width: 640px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-6);
  letter-spacing: 0.02em;
}

.hero-badge svg {
  width: 16px;
  height: 16px;
  display: inline-block;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-8);
  max-width: 520px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  line-height: 0;
  align-self: center;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all var(--transition-interactive);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-xl);
}

/* ============================================
   SECTION BASE
   ============================================ */
.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.section-alt {
  background: var(--color-surface-2);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-12);
}

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   SERVICES GRID
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: var(--space-6);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-interactive);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition-interactive);
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.service-tag {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
}

/* ============================================
   USE CASES
   ============================================ */
.use-cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .use-cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .use-cases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.use-case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-interactive);
}

.use-case-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.use-case-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  font-size: 20px;
}

.use-case-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.use-case-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   GOVERNANCE SECTION
   ============================================ */
.governance-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 768px) {
  .governance-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.governance-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.gov-feature {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.gov-feature-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.gov-feature h4 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.gov-feature p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.governance-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}

.governance-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, oklch(from var(--color-primary) l c h / 0.05), transparent);
  pointer-events: none;
}

.gov-diagram {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  position: relative;
  z-index: 1;
}

.gov-node {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  transition: all var(--transition-interactive);
}

.gov-node:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.gov-node-icon {
  font-size: 24px;
  margin-bottom: var(--space-2);
}

.gov-node-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
}

.gov-center {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-subtle));
  border-color: var(--color-primary);
}

.gov-center .gov-node-label {
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
}

/* ============================================
   ERP COMPATIBILITY
   ============================================ */
.erp-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-8);
  padding: var(--space-8) 0;
}

.erp-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  transition: all var(--transition-interactive);
  opacity: 0.6;
}

.erp-item:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.erp-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: all var(--transition-interactive);
}

.erp-item:hover .erp-icon {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.erp-name {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ============================================
   PHASES / DEPLOYMENT
   ============================================ */
.phases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .phases-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.phase-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  position: relative;
}

.phase-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: var(--space-3);
}

[data-theme="dark"] .phase-number {
  color: var(--color-primary-subtle);
}

.phase-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.phase-timeline {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.phase-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, oklch(from var(--color-primary) l c h / 0.08), transparent);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.cta-section p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-8) 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.footer p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

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

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   MOBILE MENU
   ============================================ */
@media (max-width: 480px) {
  .hero h1 { font-size: clamp(1.75rem, 6vw, 2.5rem); }
  .hero-cta-group { flex-direction: column; }
  .hero-cta-group .btn { width: 100%; text-align: center; }
  .erp-logos { gap: var(--space-4); }
  .erp-icon { width: 48px; height: 48px; font-size: var(--text-xs); }
}

/* ============================================
   LANGUAGE SWITCH — HIDE/SHOW
   ============================================ */
[data-lang="en"] .es { display: none; }
[data-lang="es"] .en { display: none; }