:root { 
    /* Silver/Metallic Color Palette - Consistent Branding */
    --primary-color: #ffffff;
    --secondary-color: rgba(20, 20, 25, 0.95);
    --accent-color: #71717a;
    --accent-hover: #a1a1aa;
    --text-color: #f3f4f6;
    --text-muted: #9ca3af;
    --card-background: rgba(30, 30, 35, 0.8);
    --container-background: #000000;
    --card-hover: rgba(40, 40, 45, 0.9);
    --transition-speed: 0.4s;
    --transition-curve: cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --max-width: 100vw;
    --background-opacity: 0.1;
    --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --box-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.4);
    --backdrop-blur: blur(20px);
    --background-gradient: radial-gradient(ellipse at center, #000814 0%, #0a0a0f 40%, #000000 100%);
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: 
        radial-gradient(ellipse at top left, rgba(113, 113, 122, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(161, 161, 170, 0.1) 0%, transparent 50%),
        var(--background-gradient);
    background-attachment: fixed;
    color: var(--text-color);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    box-sizing: border-box;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hide scrollbars only for notes page */
body.notes-page::-webkit-scrollbar {
    display: none;
}

body.notes-page {
    scrollbar-width: none;
    -ms-overflow-style: none;
    overflow-y: hidden;
}

/* Header styles - Silver/Metallic Theme */
header { 
    background: rgba(20, 20, 25, 0.8);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-bottom: 1px solid rgba(113, 113, 122, 0.2);
    display: flex;
    justify-content: flex-end;
    align-items: center;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    box-sizing: border-box;
    padding: 0 2rem;
}

.header-content {
    display: flex;
}

.header-content a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    transition: color var(--transition-speed) var(--transition-curve);
}

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

.logo {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-speed) var(--transition-curve);
    padding: 1rem 0;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

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

nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 1.25rem 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-speed) var(--transition-curve);
    position: relative;
    overflow: hidden;
}

nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
    transform: translateX(-50%);
    transition: width var(--transition-speed) var(--transition-curve);
}

nav a:hover::before,
nav a.active::before {
    width: 80%;
}

nav a::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 212, 216, 0.05), transparent);
    transition: left 0.6s ease;
}

nav a:hover::after {
    left: 100%;
}

nav a:hover, nav a.active {
    background-color: rgba(113, 113, 122, 0.1);
    color: var(--primary-color);
}

/* Main content styles */
main {
    flex: 1;
    padding: 0rem;
    max-width: 100%;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    font-weight: 700;
}

/* Footer styles - Matching homepage */
footer {
    background: linear-gradient(180deg, transparent, rgba(20, 20, 25, 0.8));
    backdrop-filter: var(--backdrop-blur);
    padding: 2rem 1rem 1.5rem;
    text-align: center;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.2);
    margin-top: auto;
}

footer a {
    color: var(--text-muted);
    text-decoration: none;
    margin: 0 0.8rem;
    transition: all var(--transition-speed) var(--transition-curve);
    font-weight: 500;
}

footer a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* Responsive design for header */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 1rem;
    }

    .logo {
        margin-bottom: 1rem;
        font-size: 2rem;
    }

    nav {
        width: 100%;
        justify-content: space-around;
        gap: 0.5rem;
    }

    nav a {
        padding: 0.75rem 0.5rem;
        font-size: 0.9rem;
    }
    
    main {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
}

/* Utility classes with silver theme */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    box-sizing: border-box;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, rgba(30, 30, 35, 0.8), rgba(40, 40, 45, 0.8));
    color: var(--text-color);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(113, 113, 122, 0.3);
    text-decoration: none;
    transition: all var(--transition-speed) var(--transition-curve);
    box-shadow: var(--box-shadow);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 212, 216, 0.1), transparent);
    transition: left 0.6s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background: linear-gradient(135deg, rgba(63, 63, 70, 0.8), rgba(82, 82, 91, 0.8));
    border-color: rgba(161, 161, 170, 0.5);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
    color: var(--primary-color);
}

/* Selection colors */
::selection {
    background: rgba(113, 113, 122, 0.3);
    color: var(--primary-color);
}

::-moz-selection {
    background: rgba(113, 113, 122, 0.3);
    color: var(--primary-color);
}