/* Explain: Base CSS reset and global page styles with animations. */
* {
    box-sizing: border-box;
}

html {
    background: var(--background-color);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--accent-color);
    color: var(--white);
}

::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--background-color);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--muted);
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.05;
}

p {
    line-height: 1.65;
}

img {
    max-width: 100%;
}

/* Reveal animation */
.reveal-up {
    opacity: 0;
    transform: translateY(28px) scale(0.985);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-up.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.reveal-clip {
    clip-path: inset(100% 0 0 0);
    transition: clip-path 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-clip.is-visible {
    clip-path: inset(0 0 0 0);
}

.reveal-bg {
    opacity: 0;
    transform: scale(0.94);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-bg.is-visible {
    opacity: 0.45;
    transform: scale(1);
}

/* Line-masked headline reveal */
.reveal-lines {
    opacity: 0;
    transition: opacity 0.6s ease;
}
.reveal-lines.is-visible {
    opacity: 1;
}
.reveal-lines .line-inner {
    transform: translateY(112%);
    transition: transform 0.95s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-lines.is-visible .line-inner {
    transform: translateY(0);
}

/* Hero word-by-word reveal */
.hero-title .hero-word {
    display: inline-block;
    transform: translateY(115%);
    opacity: 0;
    transition: transform 0.95s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: var(--d, 0ms);
    will-change: transform, opacity;
}
.hero-title.is-visible .hero-word {
    transform: translateY(0);
    opacity: 1;
}

/* Mask reveal for media */
.reveal-mask {
    clip-path: inset(0 0 100% 0);
    transition: clip-path 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-mask.is-visible {
    clip-path: inset(0 0 0 0);
}

/* Soft scale reveal for imagery */
.reveal-scale {
    opacity: 0;
    transform: scale(1.05);
    transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1), transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-scale.is-visible {
    opacity: 1;
    transform: scale(1);
}

@media (prefers-reduced-motion: reduce) {
    .reveal-lines { opacity: 1; transition: none; }
    .reveal-lines .line-inner { transform: none; transition: none; }
}

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }

@media (prefers-reduced-motion: reduce) {
    .reveal-up { opacity: 1; transform: none; transition: none; }
    .hero-title .hero-word { opacity: 1; transform: none; transition: none; }
    .reveal-mask { clip-path: none; transition: none; }
    .reveal-scale { opacity: 1; transform: none; transition: none; }
    html { scroll-behavior: auto; }
}