/* ==================== RESET & BASE ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none;
    min-height: 100vh;
}

@media (max-width: 768px) {
    body { cursor: auto; }
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent);
}

ul, ol { list-style: none; }

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    border: none;
    outline: none;
    background: transparent;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.font-mono {
    font-family: var(--font-mono);
}

/* ==================== UTILITY CLASSES ==================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==================== CUSTOM CURSOR ==================== */
.cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: var(--z-cursor-ring);
    transition: transform 0.15s var(--ease-out-expo), 
                width 0.2s var(--ease-out-expo), 
                height 0.2s var(--ease-out-expo),
                background 0.2s ease;
    transform: translate(-50%, -50%);
}

.cursor.hover {
    width: 50px;
    height: 50px;
    background: var(--color-accent-glow);
}

.cursor.click {
    transform: translate(-50%, -50%) scale(0.8);
}

.cursor-dot {
    position: fixed;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: var(--z-cursor);
    transform: translate(-50%, -50%);
}

@media (max-width: 768px) {
    .cursor, .cursor-dot { display: none; }
}

/* ==================== SCROLL PROGRESS ==================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary));
    z-index: var(--z-cursor);
    transform-origin: left;
    transform: scaleX(0);
}

/* ==================== NOISE OVERLAY ==================== */
.noise {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: var(--z-noise);
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ==================== GRADIENT MESH ==================== */
.gradient-mesh {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-mesh::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(0, 255, 136, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(0, 204, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 20%, rgba(136, 0, 255, 0.04) 0%, transparent 40%);
    animation: meshFloat 30s ease-in-out infinite;
}

@keyframes meshFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, 1%) rotate(1deg); }
    66% { transform: translate(-1%, 2%) rotate(-1deg); }
}

[data-theme="light"] .gradient-mesh::before {
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(0, 170, 85, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(0, 136, 204, 0.05) 0%, transparent 50%);
}

/* ==================== REVEAL ANIMATION ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

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

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease-out-expo);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-bg);
    border: none;
}

.btn--primary:hover {
    background: var(--color-accent-dark);
    color: var(--color-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn--secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn--secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.btn--ghost {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn--ghost:hover {
    color: var(--color-text);
    border-color: var(--color-accent);
}