/* ============================================================
   Sohaka App Portal — Design System & Styles
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* --- Design Tokens --- */
:root {
  /* Color Palette */
  --color-bg-primary: hsl(225, 25%, 8%);
  --color-bg-secondary: hsl(225, 20%, 12%);
  --color-bg-card: hsla(225, 20%, 14%, 0.6);
  --color-bg-card-hover: hsla(225, 20%, 18%, 0.8);
  --color-border: hsla(225, 30%, 30%, 0.4);
  --color-border-hover: hsla(225, 50%, 50%, 0.5);

  --color-text-primary: hsl(0, 0%, 95%);
  --color-text-secondary: hsl(225, 15%, 65%);
  --color-text-muted: hsl(225, 10%, 45%);

  /* Accent Gradients */
  --gradient-accent: linear-gradient(135deg, hsl(250, 80%, 65%), hsl(200, 90%, 55%));
  --gradient-glow: linear-gradient(135deg, hsla(250, 80%, 65%, 0.15), hsla(200, 90%, 55%, 0.15));
  --gradient-hero: radial-gradient(ellipse at 50% 0%, hsla(250, 60%, 40%, 0.25) 0%, transparent 60%);

  /* Card accent colors */
  --accent-files: hsl(200, 85%, 55%);
  --accent-market: hsl(145, 70%, 50%);
  --accent-orgchart: hsl(280, 70%, 60%);
  --accent-security: hsl(350, 75%, 55%);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.75rem;
  --font-size-5xl: 3.5rem;

  /* 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;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 4px 24px hsla(0, 0%, 0%, 0.3);
  --shadow-card-hover: 0 8px 40px hsla(0, 0%, 0%, 0.4);
  --shadow-glow: 0 0 60px hsla(250, 80%, 50%, 0.15);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* --- Background Effects --- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(hsla(225, 30%, 20%, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, hsla(225, 30%, 20%, 0.08) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  height: 60vh;
  background: var(--gradient-hero);
  z-index: 0;
  pointer-events: none;
  filter: blur(40px);
}

/* --- Layout --- */
.page-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* --- Header / Hero --- */
.hero {
  text-align: center;
  padding: var(--space-4xl) 0 var(--space-3xl);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: var(--gradient-glow);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xl);
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: hsl(145, 70%, 50%);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Service Grid --- */
.services {
  padding-bottom: var(--space-4xl);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

/* --- Service Card --- */
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-2xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base),
    background var(--transition-base);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  cursor: pointer;
}

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

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
}

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

.service-card:focus-visible {
  outline: 2px solid hsl(250, 80%, 65%);
  outline-offset: 2px;
}

.service-card__icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--card-accent-bg, var(--gradient-glow));
  margin-bottom: var(--space-lg);
  transition: transform var(--transition-base);
}

.service-card:hover .service-card__icon-wrapper {
  transform: scale(1.08);
}

.service-card__icon {
  width: 24px;
  height: 24px;
  color: var(--card-accent-color, hsl(250, 80%, 65%));
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.service-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.service-card__domain {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  font-family: 'SF Mono', 'Fira Code', monospace;
  padding: var(--space-xs) var(--space-sm);
  background: hsla(225, 20%, 20%, 0.5);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.service-card:hover .service-card__domain {
  color: var(--color-text-secondary);
}

.service-card__arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.service-card:hover .service-card__arrow {
  transform: translateX(3px);
}

/* Card accent variants */
.service-card--files {
  --card-accent: hsl(200, 85%, 55%);
  --card-accent-color: hsl(200, 85%, 55%);
  --card-accent-bg: hsla(200, 85%, 55%, 0.12);
}

.service-card--market {
  --card-accent: hsl(145, 70%, 50%);
  --card-accent-color: hsl(145, 70%, 50%);
  --card-accent-bg: hsla(145, 70%, 50%, 0.12);
}

.service-card--orgchart {
  --card-accent: hsl(280, 70%, 60%);
  --card-accent-color: hsl(280, 70%, 60%);
  --card-accent-bg: hsla(280, 70%, 60%, 0.12);
}

.service-card--security {
  --card-accent: hsl(350, 75%, 55%);
  --card-accent-color: hsl(350, 75%, 55%);
  --card-accent-bg: hsla(350, 75%, 55%, 0.12);
}

/* --- Footer --- */
.footer {
  margin-top: auto;
  padding: var(--space-xl) 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer__text {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* --- Animation: Fade-in on load --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
  }

  .hero__title {
    font-size: var(--font-size-3xl);
  }

  .hero__subtitle {
    font-size: var(--font-size-base);
  }

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

  .container {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: var(--font-size-2xl);
  }

  .service-card {
    padding: var(--space-lg);
  }
}