/* ============================================
   IRONSILK — Design Tokens
   Change colors, fonts, and sizes here.
   ============================================ */
:root {
  /* --- Colors --- */
  --color-bg:           #ffffff;
  --color-bg-alt:       #f7f8fa;
  --color-bg-card:      #ffffff;
  --color-bg-card-hover:#f3f4f6;
  --color-surface:      #f1f3f5;
  --color-border:       #e2e4e8;

  --color-text:         #1a1a2e;
  --color-text-muted:   #5a5a72;
  --color-text-dim:     #9898a8;

  --color-primary:      #6366f1;
  --color-primary-light:#4f46e5;
  --color-primary-dark: #4338ca;
  --color-primary-glow: rgba(99,102,241,0.12);

  --color-accent:       #0891b2;
  --color-accent-glow:  rgba(8,145,178,0.1);

  --color-success:      #059669;
  --color-warning:      #d97706;

  /* --- Fonts --- */
  --font-heading:       'Space Grotesk', sans-serif;
  --font-body:          'Inter', sans-serif;

  /* --- Font Sizes (fluid scale) --- */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* --- Spacing --- */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* --- Radius --- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.25s;

  /* --- Layout --- */
  --max-width: 1200px;
  --header-height: 72px;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 600;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--text-sm);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 0 24px var(--color-primary-glow);
}

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

.btn-sm { padding: 0.5rem 1.25rem; font-size: var(--text-xs); }
.btn-lg { padding: 1rem 2.25rem; font-size: var(--text-base); }

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo-placeholder {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text);
  padding: var(--space-sm) 0;
  border-bottom: 2px solid var(--color-primary);
  user-select: none;
}

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

.main-nav a:not(.btn) {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--duration) var(--ease);
}
.main-nav a:not(.btn):hover {
  color: var(--color-text);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration) var(--ease);
}

/* ============================================
   SECTION HELPERS
   ============================================ */
.section-tag {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: var(--space-3xl);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-tag {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.hero h1 {
  font-size: var(--text-6xl);
  font-weight: 700;
  margin-bottom: var(--space-xl);
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 360px;
}

.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  animation: pulseGlow 4s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
  0% { opacity: 0.5; transform: scale(1); }
  100% { opacity: 0.8; transform: scale(1.1); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}

.grid-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all var(--duration) var(--ease);
}
.grid-card:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-card-hover);
  color: var(--color-text);
}

.gc-icon {
  font-size: var(--text-2xl);
  color: var(--color-primary-light);
}

.gc-1 .gc-icon { color: var(--color-primary-light); }
.gc-2 .gc-icon { color: var(--color-accent); }
.gc-3 .gc-icon { color: var(--color-success); }
.gc-4 .gc-icon { color: var(--color-warning); }

/* ============================================
   SERVICES
   ============================================ */
.services {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-alt);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: all var(--duration) var(--ease);
}
.service-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.service-icon {
  width: 48px;
  height: 48px;
  color: var(--color-primary-light);
  margin-bottom: var(--space-lg);
}
.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

.service-card > p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-lg);
}

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

.service-features li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: var(--space-lg);
  position: relative;
}
.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ============================================
   PRODUCTS
   ============================================ */
.products {
  padding: var(--space-4xl) 0;
}

.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-4xl);
}
.product-card:last-child {
  margin-bottom: 0;
}
.product-card--reverse {
  direction: rtl;
}
.product-card--reverse > * {
  direction: ltr;
}

.product-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary-light);
  background: var(--color-primary-glow);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.product-info h3 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-md);
}

.product-desc {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.product-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.product-highlights li strong {
  display: block;
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}
.product-highlights li span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Product mockups */
.product-mockup {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.mockup-header {
  display: flex;
  gap: 6px;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
}
.mockup-dot:nth-child(1) { background: #ff5f56; }
.mockup-dot:nth-child(2) { background: #ffbd2e; }
.mockup-dot:nth-child(3) { background: #27c93f; }

.mockup-body {
  padding: var(--space-xl);
}

/* Sales Agent chat mockup */
.chat-bubble {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}
.chat-bubble:last-child { margin-bottom: 0; }

.chat-user {
  background: var(--color-primary);
  color: #fff;
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

.chat-ai {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: 4px;
}

/* Perfika dashboard mockup */
.dashboard-widget {
  padding: var(--space-md);
}

.dw-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
}

.dw-stats {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.dw-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.dw-num {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary-light);
}

.dw-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dw-progress {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.dw-bar {
  width: 100%;
  height: 8px;
  background: var(--color-surface);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.dw-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width 1s var(--ease);
}

.dw-progress span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Finsica chart mockup */
.fin-widget {
  padding: var(--space-md);
}

.fin-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
}

.fin-chart {
  display: flex;
  align-items: flex-end;
  gap: var(--space-md);
  height: 180px;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.fin-bar {
  flex: 1;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: var(--space-sm);
  position: relative;
  min-height: 20%;
}

.fin-bar span:first-child {
  position: absolute;
  bottom: -24px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.fin-val {
  font-size: var(--text-xs);
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}

.fin-metrics {
  display: flex;
  gap: var(--space-xl);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-top: var(--space-lg);
}
.fin-metrics strong {
  color: var(--color-text);
}

/* ============================================
   PROCESS
   ============================================ */
.process {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-alt);
}

.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.process-step {
  flex: 1;
  text-align: center;
  padding: var(--space-xl);
}

.step-number {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.35;
  margin-bottom: var(--space-md);
}

.process-step h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
}

.process-step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 240px;
  margin: 0 auto;
}

.process-connector {
  width: 48px;
  min-width: 48px;
  height: 2px;
  background: var(--color-border);
  margin-top: 3.5rem;
}

/* ============================================
   ABOUT
   ============================================ */
.about {
  padding: var(--space-4xl) 0;
}

.about-content {
  max-width: 720px;
}

.about-content p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.about-stats {
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-2xl);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary-light);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ============================================
   CTA / CONTACT
   ============================================ */
.cta {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-alt);
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-md);
}

.cta-content > p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
}

.cta-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.cta-form input,
.cta-form textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color var(--duration) var(--ease);
}
.cta-form input::placeholder,
.cta-form textarea::placeholder {
  color: var(--color-text-dim);
}
.cta-form input:focus,
.cta-form textarea:focus {
  border-color: var(--color-primary);
}

.cta-form textarea {
  resize: vertical;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
}

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

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-md);
  max-width: 280px;
}

.footer-links h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.footer-links a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-xs) 0;
  transition: color var(--duration) var(--ease);
}
.footer-links a:hover {
  color: var(--color-text);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-xl);
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-dim);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    display: none;
  }
  .hero h1 {
    font-size: var(--text-5xl);
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .product-card,
  .product-card--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  .process-steps {
    flex-direction: column;
    align-items: center;
  }
  .process-connector {
    width: 2px;
    height: 32px;
    min-width: 2px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

@media (max-width: 640px) {
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-xl);
    gap: var(--space-lg);
  }
  .main-nav.open {
    display: flex;
  }
  .mobile-toggle {
    display: flex;
  }
  .hero {
    padding-top: calc(var(--header-height) + var(--space-2xl));
  }
  .hero h1 {
    font-size: var(--text-4xl);
  }
  .section-title {
    font-size: var(--text-3xl);
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .about-stats {
    flex-direction: column;
    gap: var(--space-xl);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}