/* alceu.io Modern Design System - The Kinetic Observatory */
:root {
  /* Surface Layers (The Depth) */
  --color-surface-lowest: #000000;
  --color-surface: #0b0e14;
  --color-surface-container-low: #10131a;
  --color-surface-container: #161a21;
  --color-surface-container-highest: #22262f;
  --color-surface-bright: #282c36;

  /* Primary (Neon Blue) */
  --color-primary: #6fd6ff;
  --color-primary-container: #2acafd;
  --color-primary-dim: #00bcee;
  --color-on-primary: #00485d;

  /* Accent & Status */
  --color-tertiary: #a28dff; /* Pulse/Web */
  --color-error: #ff716c;

  /* Text & Outline */
  --color-on-surface: #ecedf6;
  --color-on-surface-variant: #c0c2ca; /* Brightened for better contrast */
  --color-outline-variant: #45484f;

  /* Fonts */
  --font-headline: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Manrope', sans-serif;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-surface);
  color: var(--color-on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body ::selection {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
}

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

button {
  all: unset;
  box-sizing: border-box;
  cursor: pointer;
  font-family: var(--font-body);
}

ul {
  list-style: none;
}

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

/* Utilities */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 3rem; /* 48px */
}

@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }
}

.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  vertical-align: middle;
}

/* Base Components - The "No-Line" Rule */
.section {
  padding: 3rem 0; /* Aggressively reduced from 5rem (80px) to 3rem (48px) */
}

.surface-container-low {
  background-color: var(--color-surface-container-low);
}

.surface-container {
  background-color: var(--color-surface-container);
  border-radius: 0.75rem; /* xl */
}

/* Typography styles */
.text-primary { color: var(--color-primary); }
.text-tertiary { color: var(--color-tertiary); }
.text-error { color: var(--color-error); }
.text-on-surface-variant { color: var(--color-on-surface-variant); }

.label-bold {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.heading-xl {
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.heading-lg {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.heading-md {
  font-size: 1.875rem;
  font-weight: 700;
}

.body-lg {
  font-size: 1.25rem;
  color: var(--color-on-surface-variant);
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  padding: 1rem 2rem;
  border-radius: 0.5rem; 
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: inset 0 0 10px rgba(255,255,255,0.2);
}
.btn-primary:hover {
  background-color: var(--color-primary-container);
}

.btn-secondary {
  border: 1px solid rgba(69, 72, 79, 0.5); /* outline-variant at 50% */
  color: var(--color-on-surface);
}
.btn-secondary:hover {
  border-color: rgba(111, 214, 255, 0.5); /* primary at 50% */
}

/* Ghost borders & Glass */
.ghost-border {
  border: 1px solid rgba(69, 72, 79, 0.15); /* outline-variant 15% */
}

.glass-panel {
  background: rgba(22, 26, 33, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Top Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  height: 5rem;
  transition: background-color 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
  background: rgba(11, 14, 20, 0.8);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 40px rgba(111,214,255,0.04);
}

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

.logo-text {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.05em;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}
.nav-links a {
  color: var(--color-on-surface-variant);
  font-weight: 500;
  transition: color 0.3s;
}
.nav-links a:hover {
  color: var(--color-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-login {
  color: var(--color-on-surface-variant);
  font-weight: 500;
  transition: color 0.3s;
}
.nav-login:hover {
  color: var(--color-on-surface);
}

.footer-link-disabled {
  color: var(--color-on-surface-variant);
  opacity: 0.5;
  font-size: 0.875rem;
  cursor: default;
  user-select: none;
}

.btn-demo {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  padding: 0.625rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 700;
  font-size: 0.875rem;
  transition: transform 0.1s;
}
.btn-demo:active {
  transform: scale(0.95);
}

/* Mobile Nav Hide */
@media (max-width: 768px) {
  .nav-links { display: none; }
}

/* Hero Section */
.hero {
  position: relative;
  padding-top: 8rem;
  padding-bottom: 2rem;
  background: radial-gradient(circle at 50% 50%, rgba(111, 214, 255, 0.08) 0%, transparent 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.hero-pill {
  display: inline-block;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  background: rgba(111, 214, 255, 0.05); /* primary/5 */
  border: 1px solid rgba(111, 214, 255, 0.2); /* primary/20 */
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  font-size: 0.75rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 3rem;
}

.hero-visual-wrapper {
  position: relative;
}

.hero-glow {
  position: absolute;
  inset: 0;
  background: rgba(111, 214, 255, 0.1); /* primary/10 */
  filter: blur(120px);
  border-radius: 50%;
}

.hero-image-container {
  position: relative;
  z-index: 10;
  padding: 0.5rem;
  border-radius: 1rem;
  overflow: hidden;
}

/* UI Overlays (Stay on top of Dashboard Images) */
.floating-card {
  position: absolute;
  z-index: 20;
  background: rgba(22, 26, 33, 0.85); /* Slightly darker/more opaque */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1.5rem;
  border-radius: 0.75rem;
  border-left: 4px solid var(--color-primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.floating-card .material-symbols-outlined {
  background: rgba(111, 214, 255, 0.1);
  padding: 0.75rem;
  border-radius: 0.5rem;
}

.hero-img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: 0.75rem;
  filter: grayscale(0.2) brightness(0.75);
  transition: all 0.7s;
}
.hero-image-container:hover .hero-img {
  filter: grayscale(0) brightness(1);
}

/* Product Bento Grid */
.bento-header {
  margin-bottom: 5rem;
}
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}
.bento-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.5s;
  border: 1px solid rgba(69, 72, 79, 0.1);
}
.bento-card:hover {
  background-color: var(--color-surface-bright);
  transform: translateY(-2px);
  transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.5s ease;
}

.bento-card-content {
  padding: 2.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.bento-icon-wrapper {
  width: 3rem;
  height: 3rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

/* Specific Card Layouts */
.card-sodalis { grid-column: span 7; }
.card-sodalis:hover { border-color: rgba(111, 214, 255, 0.3); } /* primary border */
.card-opushub { grid-column: span 5; }
.card-opushub:hover { border-color: rgba(162, 141, 255, 0.3); } /* tertiary border */
.card-atlante { grid-column: span 5; }
.card-atlante:hover { border-color: rgba(255, 113, 108, 0.3); } /* error border */
.card-digitization { grid-column: span 7; display: grid; grid-template-columns: 1fr 1fr; padding: 0; }
.card-digitization:hover { border-color: rgba(111, 214, 255, 0.3); }

@media(max-width: 1024px) {
  .card-sodalis, .card-opushub, .card-atlante, .card-digitization {
    grid-column: span 12;
  }
  .card-digitization { grid-template-columns: 1fr; }
}

/* Card Imagery */
.card-image-box {
  position: relative;
  border-radius: 0.5rem;
  overflow: hidden;
  border: 1px solid rgba(69, 72, 79, 0.1);
  margin-bottom: -2.5rem; /* to pull it to the bottom if there is padding on parent */
}
.card-sodalis .card-image-box { margin: 0 2.5rem -2.5rem 2.5rem; height: 16rem; }
.card-opushub .card-image-box { margin: auto 2.5rem -2.5rem 2.5rem; height: 12rem; }

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s, filter 0.7s;
}

.card-sodalis .card-img { filter: brightness(0.5); }
.card-sodalis:hover .card-img { transform: scale(1.05); }

.card-opushub .card-img { filter: brightness(0.5) grayscale(1); }
.card-opushub:hover .card-img { filter: brightness(0.5) grayscale(0); }

.card-digit-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 2s;
}
.card-digitization:hover .card-digit-img { transform: scale(1.1); }
.card-digit-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-surface-container), transparent);
}
@media (max-width: 1024px) {
  .card-digit-gradient {
    background: linear-gradient(to bottom, var(--color-surface-container), transparent);
  }
}

/* Unified Product CTAs */
.product-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px; /* Pill */
  font-size: 0.875rem;
  font-weight: 700;
  border: 1px solid rgba(69, 72, 79, 0.3);
  background: rgba(22, 26, 33, 0.4);
  color: var(--color-on-surface);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-top: auto;
  align-self: flex-start;
  cursor: pointer;
}

.product-cta .material-symbols-outlined {
  font-size: 1rem;
  transition: transform 0.3s ease;
}

.product-cta:hover .material-symbols-outlined {
  transform: translateX(4px);
}

/* Card Specific Hovers */
.card-sodalis:hover .product-cta,
.card-digitization:hover .product-cta {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(111, 214, 255, 0.3);
}

.card-opushub:hover .product-cta {
  background: var(--color-tertiary);
  color: #fff;
  border-color: var(--color-tertiary);
  box-shadow: 0 0 20px rgba(162, 141, 255, 0.3);
}

.card-atlante:hover .product-cta {
  background: var(--color-error);
  color: #fff;
  border-color: var(--color-error);
  box-shadow: 0 0 20px rgba(255, 113, 108, 0.3);
}

.bento-card-link {
  display: contents;
  text-decoration: none;
  color: inherit;
}

/* Coming Soon (Watermark) States */
.card-coming-soon {
  opacity: 0.8 !important; /* Slightly faded */
  filter: grayscale(0.5);  /* Desaturated */
  cursor: default !important; /* Not clickable */
  pointer-events: none; /* No interaction */
}

.watermark-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-15deg); /* Diagonal for that stamp look */
  font-family: var(--font-headline);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  color: rgba(255, 255, 255, 0.15); /* Very faint watermark */
  letter-spacing: 0.2em;
  text-transform: uppercase;
  z-index: 30; /* Over everything */
  pointer-events: none;
  white-space: nowrap;
  user-select: none;
  border: 4px solid rgba(255, 255, 255, 0.1); /* Optional border for stamp effect */
  padding: 1rem 3rem;
}

/* CTA */
.cta-section {
  position: relative;
  text-align: center;
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: rgba(111, 214, 255, 0.05); /* primary/5 */
  filter: blur(160px);
  border-radius: 50%;
  z-index: 0;
}
.cta-content {
  position: relative;
  z-index: 10;
  max-width: 48rem; /* 2xl max w */
  margin: 0 auto;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 3rem;
}
@media (max-width: 768px) {
  .cta-actions { flex-direction: column; }
}

.btn-white {
  background: #fff;
  color: #000;
  padding: 1.25rem 2.5rem;
  border-radius: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  transition: all 0.3s;
  box-shadow: 0 10px 15px -3px rgba(111, 214, 255, 0.1);
}
.btn-white:hover {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn-highest {
  background: var(--color-surface-container-highest);
  color: var(--color-on-surface);
  padding: 1.25rem 2.5rem;
  border-radius: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  transition: all 0.3s;
}
.btn-highest:hover {
  background: var(--color-surface-bright);
}

/* Footer */
.footer {
  border-top: 1px solid rgba(34, 38, 47, 0.15); /* highest/15 */
  background: var(--color-surface);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding: 6rem 0;
}
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-on-surface);
  margin-bottom: 1rem;
  display: block;
}
.footer-desc {
  color: var(--color-on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  max-width: 20rem;
}
.social-icons {
  display: flex;
  gap: 1rem;
}
.social-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--color-surface-container);
  color: var(--color-on-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s;
  cursor: pointer;
}
.social-icon:hover { color: #fff; }

.footer-column h4 {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}
.footer-column ul {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-column a {
  color: var(--color-on-surface-variant);
  font-size: 0.875rem;
  transition: color 0.2s;
}
.footer-column a:hover { color: #fff; }

.footer-bottom {
  padding: 2rem 0;
  border-top: 1px solid rgba(34, 38, 47, 0.05); /* highest/5 */
  display: flex;
  justify-content: space-between;
  align-items: center;
}
@media (max-width: 640px) {
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}
.footer-copyright {
  color: var(--color-on-surface-variant);
  font-size: 0.75rem;
  letter-spacing: 0.025em;
}
.footer-meta {
  display: flex;
  gap: 1.5rem;
}
.meta-tag {
  color: var(--color-on-surface-variant);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: -0.05em;
}