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

html, body {
    width: 100%;
    height: 100%;
    font-family: var(--font-ui);
    color: var(--color-text-primary);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-editorial);
    font-weight: 400;
    line-height: 1.1;
}

p {
    line-height: 1.6;
    font-size: 1.125rem;
}

/* Page Section Container */
.brand-book-container {
    width: 100%;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
}

/* BUTTER-SMOOTH APPLE REVEAL TRANSITION ON PAGE SECTIONS */
.page-section {
    width: 100vw;
    min-height: 100vh;
    padding: var(--container-padding);
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;

    opacity: 0.4;
    transform: scale(0.97);
    transition: transform 1.1s cubic-bezier(0.2, 1, 0.25, 1), 
                opacity 1.1s cubic-bezier(0.2, 1, 0.25, 1);
    will-change: transform, opacity;
}

/* Active Visible Page Section (Full Scale) */
.page-section.is-visible {
    opacity: 1 !important;
    transform: scale(1) !important;
}

/* DYNAMIC INTERACTIVE PAGE CANVAS BACKGROUNDS */
.page-bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.65;
}

/* CUSTOM GLOBAL INTERACTIVE CURSOR */
#global-custom-cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 10px;
    height: 10px;
    background-color: var(--color-emerald);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease, width 0.2s ease, height 0.2s ease, background-color 0.2s ease;
    box-shadow: 0 0 12px var(--color-emerald);
}

#global-cursor-aura {
    position: fixed;
    top: 0;
    left: 0;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(0, 176, 122, 0.4);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: transform 0.18s ease-out, width 0.2s ease, height 0.2s ease, border-color 0.2s ease;
}

/* Hover State on Interactive Cursor */
body.hovering-interactive #global-custom-cursor {
    width: 22px;
    height: 22px;
    background-color: var(--color-electric-blue);
    box-shadow: 0 0 20px var(--color-electric-blue);
}

body.hovering-interactive #global-cursor-aura {
    width: 54px;
    height: 54px;
    border-color: rgba(0, 85, 255, 0.6);
}

/* SCROLL REVEAL ANIMATIONS ACROSS ALL PAGES */
.reveal-up {
    opacity: 0.3;
    transform: translateY(25px);
    transition: opacity 0.9s cubic-bezier(0.2, 1, 0.25, 1), transform 0.9s cubic-bezier(0.2, 1, 0.25, 1);
    will-change: opacity, transform;
}

.reveal-left {
    opacity: 0.3;
    transform: translateX(-25px);
    transition: opacity 0.9s cubic-bezier(0.2, 1, 0.25, 1), transform 0.9s cubic-bezier(0.2, 1, 0.25, 1);
    will-change: opacity, transform;
}

.reveal-right {
    opacity: 0.3;
    transform: translateX(25px);
    transition: opacity 0.9s cubic-bezier(0.2, 1, 0.25, 1), transform 0.9s cubic-bezier(0.2, 1, 0.25, 1);
    will-change: opacity, transform;
}

.reveal-scale {
    opacity: 0.3;
    transform: scale(0.96);
    transition: opacity 0.9s cubic-bezier(0.2, 1, 0.25, 1), transform 0.9s cubic-bezier(0.2, 1, 0.25, 1);
    will-change: opacity, transform;
}

/* Active Visible Trigger */
.is-visible .reveal-up,
.is-visible .reveal-left,
.is-visible .reveal-right,
.is-visible .reveal-scale,
.is-visible.reveal-up,
.is-visible.reveal-left,
.is-visible.reveal-right,
.is-visible.reveal-scale {
    opacity: 1 !important;
    transform: translate(0, 0) scale(1) !important;
}

/* Staggered Delay Utilities */
.is-visible .delay-1 { transition-delay: 0.08s; }
.is-visible .delay-2 { transition-delay: 0.16s; }
.is-visible .delay-3 { transition-delay: 0.24s; }
.is-visible .delay-4 { transition-delay: 0.32s; }
.is-visible .delay-5 { transition-delay: 0.40s; }

/* Utility Classes */
.editorial-text {
    font-family: var(--font-editorial);
}

.ui-text {
    font-family: var(--font-ui);
}

.glass-panel {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: 24px;
}

.dark-theme {
    background-color: var(--color-charcoal-black);
    color: var(--color-text-inverse);
}

.dark-theme .glass-panel {
    background: rgba(17, 17, 17, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Global Responsive Adjustments */
@media (max-width: 900px) {
    #global-custom-cursor, #global-cursor-aura {
        display: none !important;
    }
    .profile-page {
        grid-template-columns: 1fr !important;
    }
    .philosophy-page {
        grid-template-columns: 1fr !important;
    }
    .listing-comparison {
        grid-template-columns: 1fr !important;
    }
    .case-transform {
        flex-direction: column !important;
    }
    .leadership-diagram {
        grid-template-columns: 1fr !important;
    }
    .report-grid {
        grid-template-columns: 1fr !important;
    }
    .report-widget {
        grid-column: span 1 !important;
    }
}