/* Core Design System & Shared Styles */
:root {
    /* Colors */
    --primary-color: #c41230;
    /* Magazine Red */
    --accent-color: #007aff;
    /* Tech Blue */
    --bg-light: #faf9f6;
    /* Paper White */
    --bg-dark: #1a1a1a;
    /* Dark Mode / Footer */
    --text-main: #1a1a1a;
    --text-muted: #666666;
    --text-light: #ffffff;
    --border-color: #dddddd;

    /* Typography */
    --font-serif: 'Playfair Display', 'Georgia', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

/* Base Reveal Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
    transition-duration: 0.8s;
}

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

/* Navigation Buttons Shared Style */
.nav-buttons {
    position: fixed;
    bottom: 40px;
    right: 30px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.nav-btn.visible {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

.nav-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.nav-btn i {
    font-size: 1.4rem;
    color: var(--text-main);
}

#homeBtn {
    background: var(--primary-color);
    border: none;
}

#homeBtn i {
    color: white;
}

/* Utilities */
.highlight {
    color: var(--primary-color);
    font-weight: 700;
}

.text-center {
    text-align: center;
}