/* === LETLADI BUSINESS SERVICES — 2025 MODERN STYLESHEET === */
/* Navy, Orange, White | Arcta-Class Visual System | Hero + Logo + Gallery Strict Rules */

:root {
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-display: 'Clash Display', var(--font-main);

  --color-navy: #001A3A;
  --color-navy-dark: #000F24;
  --color-navy-light: #1A2E4A;

  --color-orange: #FF6B00;
  --color-orange-light: #FF9E4D;
  --color-orange-dark: #D45A00;

  --color-white: #FFFFFF;
  --color-white-90: rgba(255, 255, 255, 0.9);
  --color-white-60: rgba(255, 255, 255, 0.6);

  --color-bg: var(--color-navy);
  --color-bg-dark: var(--color-navy-dark);
  --color-bg-light: var(--color-navy-light);

  --glass: rgba(255, 255, 255, 0.08);
  --glass-heavy: rgba(255, 255, 255, 0.2);

  --color-accent: var(--color-orange);
  --color-text: var(--color-white-90);
  --color-text-secondary: var(--color-white-60);

  --border-radius: 16px;
  --border-radius-sm: 8px;
  --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  --box-shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.1);

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3rem;
  --space-xl: 4rem;

  --max-panel-width: 960px;
  --header-height: 80px;

  --transition-fast: 0.15s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 100%;
}

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

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  background: linear-gradient(90deg, var(--color-orange), var(--color-orange-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p, li {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  font-size: clamp(1rem, 2vw, 1.125rem);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-orange-light);
}

/* === NAVIGATION === */
header {
  background: var(--color-bg-dark);
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid var(--glass-heavy);
  backdrop-filter: blur(8px);
}

.nav-container {
  max-width: var(--max-panel-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-medium);
}

.logo img:hover {
  transform: scale(1.05);
}

nav ul {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

nav ul li a {
  color: var(--color-white);
  font-weight: 500;
  position: relative;
}

nav ul li a::after {
  content: '';
  display: block;
  width: 0%;
  height: 2px;
  background: var(--color-orange);
  transition: width var(--transition-medium);
}

nav ul li a:hover::after {
  width: 100%;
}

/* === HERO === */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
  position: relative;
  background: url('/projects/letladi/assets/img/hero.png') center center / cover no-repeat;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-panel-width);
  text-align: center;
  padding-bottom: var(--space-xl);
}

/* === PANELS === */
.container {
  max-width: var(--max-panel-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

.glass-panel {
  background: var(--glass);
  backdrop-filter: blur(12px);
  padding: var(--space-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  border: 1px solid var(--glass-heavy);
  margin: var(--space-lg) auto;
  max-width: var(--max-panel-width);
}

/* === IMAGES === */
img:not(.logo):not(.gallery-thumb):not(.gallery-preview) {
  width: 100%;
  height: auto;
  max-width: var(--max-panel-width);
  border-radius: var(--border-radius-sm);
  display: block;
  margin: 0 auto var(--space-md);
}

/* === GALLERY === */
.gallery-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-lg);
}

.gallery-item {
  flex: 1 1 220px;
  max-width: 240px;
  background: var(--glass);
  border: 1px solid var(--glass-heavy);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--box-shadow-sm);
  overflow: hidden;
  transition: transform var(--transition-medium);
}

.gallery-item:hover {
  transform: scale(1.02);
}

.gallery-thumb {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
  border-radius: var(--border-radius-sm);
}

/* === BUTTONS === */
.button-primary {
  background-color: var(--color-orange);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: background var(--transition-medium);
  border: none;
  text-transform: uppercase;
  font-weight: 600;
}

.button-primary:hover {
  background-color: var(--color-orange-light);
}

/* === FOOTER === */
footer {
  padding: var(--space-lg) var(--space-md);
  background: var(--color-bg-dark);
  color: var(--color-white-60);
  text-align: center;
  font-size: 0.875rem;
  border-top: 1px solid var(--glass);
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--color-orange);
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-orange-light);
}

/* === HAMBURGER === */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  height: 3px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* === NAVIGATION MOBILE COLLAPSE === */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg-dark);
    flex-direction: column;
    align-items: center;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.4s ease-in-out;
  }

  .nav-links.active {
    max-height: 600px;
  }

  .nav-links li {
    margin: 1rem 0;
  }

  nav ul {
    flex-direction: column;
    width: 100%;
  }

  nav ul li a {
    display: block;
    width: 100%;
    text-align: center;
    padding: var(--space-sm) 0;
  }
}