/* ============================================
   CORD BITCOIN ATM — Custom Styles
   Premium Dark Luxury Theme
   ============================================ */

/* ---- Reset & Base ---- */
*, *::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: #B8603C;
    color: #F5EDE0;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0D0D0D;
}
::-webkit-scrollbar-thumb {
    background: #2A2520;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #B8603C;
}

/* ---- Animations ---- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

/* ---- Reveal on Scroll (progressive enhancement) ---- */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Navbar ---- */
#navbar {
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
}

#navbar.scrolled {
    background: rgba(13, 13, 13, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 184, 150, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* ---- Mobile Menu ---- */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s 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 Toggle ---- */
.menu-line {
    display: block;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
#menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#menu-btn.active .menu-line:nth-child(3) {
    width: 6px;
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ---- Typography refinements ---- */
.font-display {
    letter-spacing: -0.01em;
}

/* ---- Button focus states ---- */
a:focus-visible, button:focus-visible {
    outline: 2px solid #C8956C;
    outline-offset: 2px;
}

/* ---- Image optimization ---- */
img {
    max-width: 100%;
    height: auto;
}

/* ---- Utility: writing-mode for scroll indicator ---- */
@media (max-width: 767px) {
    .writing-vertical {
        writing-mode: horizontal-tb;
    }
}

/* ---- Card hover glow effect ---- */
.group:hover .group-hover\:bg-cord-terracotta\/20 {
    background-color: rgba(184, 96, 60, 0.2);
}

/* ---- Smooth section transitions ---- */
section {
    position: relative;
}

/* ---- Contact form (if added later) ---- */
input, textarea, select {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid rgba(212, 184, 150, 0.15);
    color: #F5EDE0;
    border-radius: 4px;
    padding: 12px 16px;
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.9rem;
    width: 100%;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #B8603C;
    box-shadow: 0 0 0 3px rgba(184, 96, 60, 0.15);
}

input::placeholder, textarea::placeholder {
    color: rgba(245, 237, 224, 0.3);
}

/* ---- Success message ---- */
.success-message {
    background: rgba(184, 96, 60, 0.1);
    border: 1px solid rgba(184, 96, 60, 0.3);
    color: #D4B896;
    padding: 16px 20px;
    border-radius: 4px;
    font-size: 0.9rem;
    display: none;
}

.success-message.show {
    display: block;
    animation: fadeIn 0.4s ease-out;
}