/* menu-responsive.css */

:root {
    --menu-bg: rgba(21, 27, 46, 0.95);
    --menu-border: #2d3748;
    --menu-accent: #00d4ff;
    --menu-text: #e8edf5;
    --menu-text-hover: #00d4ff;
}

/* Header */
header {
    background: linear-gradient(135deg, rgba(21, 27, 46, 0.98) 0%, rgba(21, 27, 46, 0.9) 100%);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--menu-border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--menu-accent);
    text-decoration: none;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    transition: all 0.3s ease;
}

.logo:hover {
    text-shadow: 0 0 30px var(--menu-accent);
    transform: scale(1.05);
}

/* Hamburger Menu Button */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0.5rem;
    z-index: 1001;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--menu-accent);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 3px;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Navigation */
nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-section {
    position: relative;
}

.nav-title {
    color: var(--menu-accent);
    font-weight: 600;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-title::after {
    content: '▼';
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}

.nav-title:hover {
    background: rgba(0, 212, 255, 0.1);
}

.nav-section.active .nav-title::after {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--menu-bg);
    border: 1px solid var(--menu-border);
    border-radius: 12px;
    padding: 1rem;
    min-width: 250px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    margin-top: 0.5rem;
    z-index: 100;
}

.nav-section.active .nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-links a {
    color: var(--menu-text);
    text-decoration: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--menu-text-hover);
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--menu-accent);
    transform: translateX(5px);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .menu-toggle {
        display: flex;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        height: 100vh;
        background: var(--menu-bg);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        transition: right 0.4s ease;
        box-shadow: -5px 0 25px rgba(0, 0, 0, 0.5);
        overflow-y: auto;
        gap: 1rem;
    }

    nav.active {
        right: 0;
    }

    .nav-section {
        width: 100%;
    }

    .nav-title {
        width: 100%;
        justify-content: space-between;
        font-size: 1.1rem;
        padding: 1rem;
        background: rgba(0, 212, 255, 0.05);
    }

    .nav-links {
        position: static;
        width: 100%;
        margin-top: 0;
        border: none;
        border-left: 2px solid var(--menu-accent);
        border-radius: 0;
        padding: 0.5rem 0 0.5rem 1rem;
        box-shadow: none;
        background: transparent;
    }

    .nav-section.active .nav-links {
        display: flex;
    }

    .nav-links a {
        padding: 0.6rem 1rem;
    }

    /* Overlay when menu is open */
    body.menu-open::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        z-index: 999;
        animation: fadeIn 0.3s ease;
    }

    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }
}

@media (max-width: 480px) {
    header {
        padding: 1rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    nav {
        width: 100%;
        right: -100%;
    }
}