/*!
 * Copyright (c) 2026 AbuEin Technologies — Salaheddin AbuEin <salaheddin@abuein.dev>
 * https://abuein.dev/
 * SPDX-License-Identifier: MIT
 */

@layer components {

    /* ===== Header & Navigation ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: var(--z-fixed);
        background-color: var(--color-background);
        border-bottom: 1px solid var(--color-border);
        transition: all var(--transition-base);
    }

    .header.scrolled {
        background-color: var(--color-header-scrolled);
        backdrop-filter: blur(10px);
    }

    .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 4rem;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .logo-icon {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 2px;
        width: 28px;
        height: 28px;
    }

    .logo-square {
        background-color: var(--color-primary);
        border-radius: 2px;
    }

    .logo-square:nth-child(3) {
        grid-column: span 2;
    }

    .logo-text {
        font-family: var(--font-display);
        font-size: var(--text-xl);
        font-weight: 700;
        color: var(--color-primary);
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: var(--spacing-xl);
    }

    .nav-links a {
        font-size: var(--text-sm);
        font-weight: 500;
        color: var(--color-text-secondary);
        transition: color var(--transition-fast);
    }

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

    .nav-actions {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
    }

    .theme-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: var(--radius-md);
        color: var(--color-text-secondary);
        transition: all var(--transition-fast);
    }

    .theme-toggle:hover {
        background-color: var(--color-primary-muted);
        color: var(--color-primary);
    }

    .icon-sun,
    .icon-moon {
        transition: opacity var(--transition-fast);
    }

    /* Icon swap is the ONLY legitimate use of [data-theme] in components */
    [data-theme="light"] .icon-moon {
        display: none;
    }

    [data-theme="dark"] .icon-sun {
        display: none;
    }

    .mobile-toggle {
        display: none;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 40px;
        height: 40px;
        padding: 8px;
    }

    .mobile-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--color-text);
        transition: all var(--transition-fast);
    }

}