/* Reset and global styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    scroll-behavior: smooth;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Background ambient blur decorations */
body::before, body::after {
    content: '';
    position: fixed;
    width: 450px;
    height: 450px;
    border-radius: 50%;
    z-index: -1;
    filter: blur(100px);
    opacity: 0.15;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

body::before {
    top: -100px;
    left: -100px;
    background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
}

body::after {
    bottom: -100px;
    right: -100px;
    background: radial-gradient(circle, var(--color-info) 0%, transparent 70%);
}

[data-theme="light"]::before, [data-theme="light"]::after {
    opacity: 0.08;
}

/* Custom premium scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-glass);
    border-radius: 99px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-glass-hover);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

button {
    font-family: var(--font-sans);
    cursor: pointer;
    border: none;
    background: none;
}

/* Layout containers */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-glass);
}

footer {
    text-align: center;
    padding: 2rem 0 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-glass);
    margin-top: 4rem;
}