/* =========================================
   Reset & Core
   ========================================= */
:root {
    /* Color System - Dark Mode (Default) */
    --bg-body: #0f172a;
    /* Slate 900 */
    --bg-alt: #1e293b;
    /* Slate 800 */
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    /* Slate 50 */
    --text-muted: #94a3b8;
    /* Slate 400 */
    --accent: #6366f1;
    /* Indigo 500 */
    --accent-hover: #4f46e5;
    --border: #334155;

    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px 0;

    /* Fonts */
    --font-heading: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition: all 0.3s ease;
}

[data-theme="light"] {
    --bg-body: #ffffff;
    --bg-alt: #f8fafc;
    /* Slate 50 */
    --bg-card: #ffffff;
    --text-main: #0f172a;
    /* Slate 900 */
    --text-muted: #64748b;
    /* Slate 500 */
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --border: #e2e8f0;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* =========================================
   Typography
   ========================================= */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 2px;
}

/* =========================================
   Container & Layout
   ========================================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--section-padding);
}

.bg-alt {
    background-color: var(--bg-alt);
}

.bg-accent {
    background-color: var(--accent);
}

.text-white {
    color: #ffffff !important;
}

.text-center {
    text-align: center;
}

/* =========================================
   Components
   ========================================= */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent);
    color: var(--text-main);
    margin-left: 1rem;
}

.btn-outline:hover {
    background-color: var(--accent);
    color: white;
}

/* =========================================
   Navigation
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 23, 42, 0.9);
    /* Dark translucent default */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    height: 80px;
    display: flex;
    align-items: center;
}

[data-theme="light"] .navbar {
    background-color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

.logo .highlight {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    position: relative;
    font-size: 0.95rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s;
}

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

/* Theme Toggle */
#theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-main);
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

#theme-toggle:hover {
    color: var(--accent);
}

.sun-icon {
    display: none;
}

.moon-icon {
    display: block;
}

[data-theme="light"] .sun-icon {
    display: block;
}

[data-theme="light"] .moon-icon {
    display: none;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.greeting {
    font-size: 1.25rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.hero-name {
    font-size: 4.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--text-main), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: 2rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-description {
    margin-bottom: 3rem;
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-main);
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background-color: var(--text-main);
    border-radius: 50%;
    animation: scrollMouse 2s infinite;
}

@keyframes scrollMouse {
    0% {
        top: 8px;
        opacity: 1;
    }

    100% {
        top: 18px;
        opacity: 0;
    }
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0) translateX(-50%);
    }

    40% {
        transform: translateY(-10px) translateX(-50%);
    }

    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* =========================================
   About Section
   ========================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    animation: subtleFloat 6s ease-in-out infinite;
}

@keyframes subtleFloat {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0);
    }
}

.about-content p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* =========================================
   Skills Section
   ========================================= */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-category {
    background-color: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.skill-category h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
}

.skill-list li {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
}

.skill-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* =========================================
   Projects Section
   ========================================= */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-alt);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.project-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-content h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.project-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-meta {
    border-top: 1px solid var(--border);
    padding-top: 1rem;
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 500;
}

/* =========================================
   Experience Section
   ========================================= */
.experience-container {
    max-width: 800px;
    margin: 0 auto;
}

.experience-item {
    background-color: var(--bg-card);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
}

.experience-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.experience-body ul {
    list-style: none;
}

.experience-body li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
}

.experience-body li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* =========================================
   Services Section
   ========================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--bg-alt);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.service-card p {
    color: var(--text-muted);
}

/* =========================================
   Career Objective
   ========================================= */
.objective-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.6;
    color: #ffffff;
}

/* =========================================
   Contact Section
   ========================================= */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.contact-info h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.contact-info p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-alt);
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: var(--transition);
    font-weight: 500;
}

.social-link:hover {
    background-color: var(--accent);
    color: white;
    padding-left: 2rem;
}

/* =========================================
   Footer
   ========================================= */
.footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.back-to-top {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--accent);
}

/* =========================================
   Responsiveness
   ========================================= */
@media (max-width: 968px) {

    .about-grid,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-name {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Hide default nav */
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-body);
        flex-direction: column;
        padding: 2rem 0;
        border-bottom: 1px solid var(--border);
        animation: slideDown 0.3s ease forwards;
    }

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

    .hamburger {
        display: flex;
    }

    .hero-name {
        font-size: 2.8rem;
    }

    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .btn-outline {
        margin-left: 0;
    }

    .section-title {
        font-size: 2rem;
    }
}

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

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

/* =========================================
   Animations Utilities
   ========================================= */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.visible {
    opacity: 1;
    transform: translateY(0) translateX(0);
}

/* =========================================
   RTL Support
   ========================================= */
[dir="rtl"] {
    direction: rtl;
    text-align: right;
}

[dir="rtl"] .nav-links a::after {
    left: auto;
    right: 0;
}

[dir="rtl"] .skill-list li,
[dir="rtl"] .experience-body li {
    padding-left: 0;
    padding-right: 1.5rem;
}

[dir="rtl"] .skill-list li::before,
[dir="rtl"] .experience-body li::before {
    left: auto;
    right: 0;
}

[dir="rtl"] .experience-item {
    border-left: 0 solid transparent;
    border-right: 4px solid var(--accent);
}

[dir="rtl"] .social-link:hover {
    padding-left: 1.5rem;
    /* Reset LTR style */
    padding-right: 2rem;
}

[dir="rtl"] .btn-outline {
    margin-left: 0;
    margin-right: 1rem;
}

[dir="rtl"] .fade-in-left {
    transform: translateX(30px);
    /* Behave like right */
}

[dir="rtl"] .fade-in-right {
    transform: translateX(-30px);
    /* Behave like left */
}

[dir="rtl"] .visible {
    transform: translateY(0) translateX(0);
}

@media (max-width: 968px) {
    [dir="rtl"] .btn-outline {
        margin-right: 0;
    }
}

/* Language Switcher */
.lang-switch {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 20px;
    margin-left: 1rem;
    transition: var(--transition);
}

[dir="rtl"] .lang-switch {
    margin-left: 0;
    margin-right: 1rem;
}

.lang-switch:hover {
    border-color: var(--accent);
    color: var(--accent);
}