/* ========================================
   7ZZIP MAIN STYLES
   ======================================== */

/* ========================================
   CSS Variables
   ======================================== */
:root {
    /* Colors */
    --color-bg: #000;
    --color-text: #fff;
    --color-text-muted: rgba(255, 255, 255, 0.7);
    --color-accent: #fff;
    --color-overlay: rgba(0, 0, 0, 0.95);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Typography */
    --font-sans: Arial, sans-serif;
    --font-weight-normal: 600;
    --font-weight-bold: 900;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* ========================================
   HEADER / NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    max-width: 1440px;
    margin: 0 auto;
}

/* Logo */
.logo {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    letter-spacing: 1px;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

/* Menu Toggle Button */
.menu-toggle {
    background: none;
    border: none;
    width: 30px;
    height: 24px;
    position: relative;
    z-index: 1100;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    position: absolute;
    left: 0;
    transition: all var(--transition-normal);
}

.menu-toggle span:nth-child(1) {
    top: 0;
}

.menu-toggle span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.menu-toggle span:nth-child(3) {
    bottom: 0;
}

/* Menu Toggle Active State */
.menu-toggle.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-overlay);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow);
    z-index: 999;
}

.nav-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* Navigation Links */
.nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-links a {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    letter-spacing: -2px;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
}

.nav-links a:hover {
    transform: translateY(-5px);
}

.nav-links a:hover::after {
    width: 100%;
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
    transform: scale(1.1) rotate(5deg);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: #0a0a0a;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer Info */
.footer-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-logo {
    font-size: 28px;
    font-weight: var(--font-weight-bold);
    letter-spacing: 1px;
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 14px;
}

/* Footer Links */
.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column h3 {
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: var(--color-text-muted);
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-text);
}

/* Footer Bottom */
.footer-bottom {
    max-width: 1440px;
    margin: 0 auto;
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--color-text-muted);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--color-text);
}

/* ========================================
   RESPONSIVE
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }

    .nav-links a {
        font-size: 36px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .logo {
        font-size: 20px;
    }

    .nav-links a {
        font-size: 32px;
        letter-spacing: -1px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-links a {
        font-size: 28px;
    }

    .social-links a {
        width: 40px;
        height: 40px;
    }

    .social-links svg {
        width: 18px;
        height: 18px;
    }
}