/* 
  VOLABOND LLC - Premium Business Website Styles
  Maintained in assets/css/styles.css
*/

:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  --color-accent: #000000;
  --color-primary: #121212;
  --color-secondary: #f5f5f5;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --spacing-unit: 1rem;
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1440px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: opacity 0.3s var(--transition-smooth);
}

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

/* --- Layout Containers --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 calc(var(--spacing-unit) * 2);
}

.section {
  padding: calc(var(--spacing-unit) * 8) 0;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.h1 { font-size: clamp(3rem, 8vw, 6rem); }
.h2 { font-size: clamp(2.5rem, 5vw, 4rem); }
.h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); }

/* --- Grid Strategy 1: Classical 12-Column --- */
.grid-classical {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: calc(var(--spacing-unit) * 2);
}

/* --- Grid Strategy 2: Modular Bento Box --- */
.grid-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 300px;
  gap: var(--spacing-unit);
}

.bento-large { grid-column: span 2; grid-row: span 2; }
.bento-wide { grid-column: span 2; }
.bento-tall { grid-row: span 2; }

/* --- Grid Strategy 3: Asymmetric Split --- */
.grid-asymmetric {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: calc(var(--spacing-unit) * 4);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-secondary);
}

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

.nav-links {
  display: flex;
  gap: calc(var(--spacing-unit) * 2);
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-links a:hover {
  opacity: 0.6;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.05em;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: transform 0.3s var(--transition-smooth), background 0.3s;
}

.btn:hover {
  background: #333;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-text);
}

.btn-secondary:hover {
  background: var(--color-text);
  color: white;
}

/* --- Footer --- */
.footer {
  background: var(--color-secondary);
  padding: calc(var(--spacing-unit) * 6) 0;
  border-top: 1px solid #ddd;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: calc(var(--spacing-unit) * 4);
}

.footer-bottom {
  margin-top: calc(var(--spacing-unit) * 4);
  padding-top: var(--spacing-unit);
  border-top: 1px solid #ccc;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-asymmetric { grid-template-columns: 1fr; }
  .grid-bento { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; } /* Mobile menu toggle would go here */
  .grid-classical { grid-template-columns: 1fr; }
  .grid-bento { grid-template-columns: 1fr; }
  .bento-large, .bento-wide, .bento-tall { grid-column: span 1; grid-row: span 1; }
}

@media (max-width: 480px) {
  .h1 { font-size: 2.5rem; }
  .section { padding: calc(var(--spacing-unit) * 4) 0; }
}

/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Interactive Effects Classes (Placeholders) --- */
.reveal-on-scroll { opacity: 0; transform: translateY(30px); transition: all 0.8s var(--transition-smooth); }
.reveal-on-scroll.active { opacity: 1; transform: translateY(0); }

.magnetic-target { transition: transform 0.2s ease-out; }

.parallax-layer { will-change: transform; }