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

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

body {
    overflow-x: hidden;
}

::selection {
    background: #B85C38;
    color: #FDF8F0;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #FDF8F0;
}
::-webkit-scrollbar-thumb {
    background: #D4956A;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #B85C38;
}

/* Scroll Animations */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }

/* Cabin Cards */
.cabin-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.cabin-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Scroll Line Animation */
@keyframes scrollLine {
    0% { top: 0; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

.animate-scroll-line {
    animation: scrollLine 2s ease-in-out infinite;
}

/* Navbar */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(253, 248, 240, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(61, 43, 31, 0.08);
}

#navbar.scrolled .nav-logo {
    color: #3D2B1F;
}

/* Mobile Menu */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }

/* Mobile Menu Button */
.menu-line-1 {
    transform-origin: center;
}

.menu-line-2 {
    transform-origin: center;
}

.menu-line-3 {
    transform-origin: center;
}

#mobile-menu-btn.open .menu-line-1 {
    transform: translateY(6px) rotate(45deg);
}

#mobile-menu-btn.open .menu-line-2 {
    opacity: 0;
}

#mobile-menu-btn.open .menu-line-3 {
    transform: translateY(-6px) rotate(-45deg);
    width: 24px;
}

/* Form Focus States */
input:focus, textarea:focus {
    border-bottom-color: #B85C38 !important;
}

/* Smooth image loading */
img {
    opacity: 0;
    transition: opacity 0.5s ease;
}

img.loaded {
    opacity: 1;
}

/* Experience cards stagger */
#experience .group {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.5s ease;
}

#experience .group.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Date input styling */
input[type="date"] {
    color-scheme: light;
}

/* Print styles */
@media print {
    #navbar, #mobile-menu, .animate-scroll-line { display: none; }
    body { background: white; }
}