/* ========================================
   Aroma Coffee Art Gallery
   Premium Dark Luxury Styles
   ======================================== */

/* CSS Custom Properties */
:root {
    --plum-950: #1a0a0d;
    --plum-900: #2d1117;
    --plum-800: #612934;
    --plum-700: #76303d;
    --amber-400: #fbbf24;
    --amber-500: #f59e0b;
    --amber-600: #d97706;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

/* Selection color */
::selection {
    background-color: rgba(251, 191, 36, 0.3);
    color: #fbbf24;
}

/* ========================================
   Scroll Reveal Animations
   Progressive enhancement: content visible by default,
   animated only when JS runs and motion is preferred.
   ======================================== */

/* Default state: all elements visible */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transform: none;
}

/* Animated state: applied via JS when preferred */
@media (prefers-reduced-motion: no-preference) {
    .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-left {
        opacity: 0;
        transform: translateX(-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-right {
        opacity: 0;
        transform: translateX(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.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: none;
    }
}

/* ========================================
   Navigation
   ======================================== */

#navbar {
    backdrop-filter: blur(0px);
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease, box-shadow 0.5s ease;
}

#navbar.scrolled {
    background-color: rgba(26, 10, 13, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(212, 165, 116, 0.1);
}

/* Mobile menu transitions */
#mobileMenu {
    transition: opacity 0.4s ease, pointer-events 0.4s ease;
}

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

/* Hamburger animation */
#bar1.open {
    transform: translateY(6px) rotate(45deg);
}

#bar2.open {
    opacity: 0;
}

#bar3.open {
    transform: translateY(-6px) rotate(-45deg);
}

/* ========================================
   Image hover effects
   ======================================== */

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

/* ========================================
   Form focus states
   ======================================== */

input:focus,
textarea:focus {
    box-shadow: 0 0 0 1px rgba(251, 191, 36, 0.2);
}

/* ========================================
   Scrollbar styling
   ======================================== */

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--plum-950);
}

::-webkit-scrollbar-thumb {
    background: var(--plum-700);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--amber-600);
}

/* ========================================
   Responsive adjustments
   ======================================== */

@media (max-width: 768px) {
    html {
        scroll-padding-top: 73px;
    }
    
    .font-serif {
        word-spacing: 0.05em;
    }
}