:root {
    --bg-color: #0a0a0e;
    --text-color: #e0e0e0;
    --text-muted: #a0a0a0;
    --primary-color: #00d4ff;
    /* Cyan/Neon Blue */
    --secondary-color: #7b2cbf;
    /* Deep Purple */
    --accent-color: #f72585;
    /* Pink/Magenta */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-hover: rgba(255, 255, 255, 0.1);
    --font-en: 'Inter', sans-serif;
    --font-heading-en: 'Outfit', sans-serif;
    --font-ar: 'Cairo', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    margin: 0;
    /* Ensure no default margin */
}

/* =========================================
   CHECKBOX HACK LOGIC
   ========================================= */

/* Hide the inputs */
#lang-ar,
#lang-en,
#menu-btn {
    display: none;
}

/* 1. Language Visibility Logic */
/* Default (Inputs NOT checked logic - handled by default check) */

/* If AR checked (default) -> Hide EN spans */
#lang-ar:checked~.page-wrapper .en {
    display: none;
}

/* If EN checked -> Hide AR spans */
#lang-en:checked~.page-wrapper .ar {
    display: none;
}

/* 2. Direction & Font Logic */
/* Default (AR): RTL, Cairo Font */
.page-wrapper {
    /* Background removed to allow fixed body bg to show */
    /* background-color: var(--bg-color); */
    background-color: transparent;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    /* Default Arabic State */
    direction: rtl;
    font-family: var(--font-ar);
}

/* Switch to EN State */
#lang-en:checked~.page-wrapper {
    direction: ltr;
    font-family: var(--font-en);
}

#lang-en:checked~.page-wrapper h1,
#lang-en:checked~.page-wrapper h2,
#lang-en:checked~.page-wrapper h3,
#lang-en:checked~.page-wrapper h4 {
    font-family: var(--font-heading-en);
}

/* 3. Language Toggle Button Logic */
/* When AR is active, show the "English" button (ar-btn), hide "Arabic" button (en-btn) */
#lang-ar:checked~.page-wrapper .en-btn {
    display: none;
}

#lang-ar:checked~.page-wrapper .ar-btn {
    display: inline-block;
}

/* When EN is active, show "Arabic" button, hide "English" */
#lang-en:checked~.page-wrapper .ar-btn {
    display: none;
}

#lang-en:checked~.page-wrapper .en-btn {
    display: inline-block;
}

/* 4. Mobile Menu Toggle Logic */
/* When menu-btn is checked, show nav-links */
/* (Mobile styles are in media query section) */


/* =========================================
   GENERAL STYLES
   ========================================= */

/* Background Image */
.background-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: url('bg.png') no-repeat center center/cover;
}

.background-glow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

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

/* Container */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    background: rgba(10, 10, 14, 0.8);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    user-select: none;
    /* Important for labels acting as buttons */
}

.lang-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #000;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
}

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

.mobile-menu-toggle {
    display: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-menu-toggle .close-icon {
    display: none;
}

/* Sections General */
section {
    padding: 100px 0;
    position: relative;
    /* Removed JS scroll animation opacity/translate for now to ensure visibility without JS */
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 120px;
}

.hero h1 {
    font-size: 3.5rem;
    background: linear-gradient(135deg, #fff 0%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 2rem;
}

.hero p.bio {
    max-width: 600px;
    margin: 0 auto 3rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    border: 1px solid var(--primary-color);
    color: #fff;
    background: rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
    margin: 0 10px;
}

.btn:hover {
    background: var(--primary-color);
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    border-color: var(--glass-border);
    background: var(--glass-bg);
}

.btn-secondary:hover {
    background: var(--glass-border);
    color: #fff;
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}

/* Cards (Glassmorphism) */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 30px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    background: var(--card-hover);
}

.card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.card h4 {
    font-size: 1.1rem;
    color: #fff;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.card .date {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: block;
}

.card ul {
    list-style: none;
    padding: 0;
}

.card ul li {
    margin-bottom: 0.5rem;
    position: relative;
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* List Item Bullets Direction Support */
/* RTL State (Default) */
.page-wrapper[style*="rtl"] .card ul li,
/* Fallback if needed */
.card ul li {
    /* Default is RTL context logic */
    padding-right: 20px;
    padding-left: 0;
}

.card ul li::before {
    content: '▹';
    position: absolute;
    right: 0;
    left: auto;
    color: var(--secondary-color);
}

/* LTR State Override */
#lang-en:checked~.page-wrapper .card ul li {
    padding-left: 20px;
    padding-right: 0;
}

#lang-en:checked~.page-wrapper .card ul li::before {
    left: 0;
    right: auto;
}


/* Skills */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 30px;
}

.skill-tag {
    background: rgba(123, 44, 191, 0.15);
    border: 1px solid rgba(123, 44, 191, 0.3);
    color: #dfaeff;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--secondary-color);
    color: #fff;
    border-color: var(--secondary-color);
}

/* Contact */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    margin-top: 40px;
}

.contact-item {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-item i {
    color: var(--primary-color);
}

/* Footer */
footer {
    text-align: center;
    padding: 50px 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
    margin-top: 50px;
}

/* Responsive & Mobile Menu */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        /* Hidden by default */
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 14, 0.95);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        border-bottom: 1px solid var(--glass-border);
    }

    /* Logic to show menu when Checkbox is Checked */
    #menu-btn:checked~.page-wrapper .nav-links {
        display: flex;
        animation: slideDown 0.3s ease-out;
    }

    /* Toggle Icon Logic */
    /* If checked, hide bars, show times */
    #menu-btn:checked~.page-wrapper .mobile-menu-toggle .open-icon {
        display: none;
    }

    #menu-btn:checked~.page-wrapper .mobile-menu-toggle .close-icon {
        display: inline-block;
    }

    /* Mobile Menu Overlay */
    .menu-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        z-index: 999;
        /* Just below Nav (1000) */
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(2px);
    }

    /* Show overlay when menu is checked */
    #menu-btn:checked~.page-wrapper .menu-overlay {
        display: block;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .container {
        padding: 0 20px;
    }

    .cta-buttons {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .btn {
        margin: 0;
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}