/* ====================
   Variables & Colors
   ==================== */
:root {
    /* Color Scheme - Updated to be more cyberpunk */
    --primary-dark: #000000; /* True black background */
    --secondary-dark: #0a0a0a; /* Very dark, almost black */
    --tertiary-dark: #101010; /* Slightly lighter dark */
    --accent-color: #00eeff; /* Bright cyan/blue */
    --accent-hover: #00aaff; /* Slightly darker cyan for hover */
    --accent-color-2: #00ff66; /* Bright green */
    --accent-color-3: #ff00aa; /* Bright pink/magenta */
    --text-primary: #ffffff; /* Pure white */
    --text-secondary: #e0e0e0; /* Very light gray */
    --text-muted: #8b949e; /* Unchanged */
    --border-color: #333333; /* Dark gray for borders */
    --success-color: #00ff66; /* Same as accent-color-2 */
    --warning-color: #f0e100; /* Bright yellow */
    --error-color: #ff0055; /* Bright red */

    /* Typography */
    --font-family: 'Poppins', sans-serif;
    --fs-xl: 3.5rem;
    --fs-l: 2.5rem;
    --fs-m: 1.5rem;
    --fs-s: 1.125rem;
    --fs-xs: 0.875rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-s: 1rem;
    --spacing-m: 2rem;
    --spacing-l: 3rem;
    --spacing-xl: 5rem;

    /* Other */
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;
    --box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.9);
    --container-max-width: 1200px;
    --glow-effect: 0 0 10px rgba(0, 238, 255, 0.7);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) var(--primary-dark);
}

body {
    font-family: var(--font-family);
    background-color: var(--primary-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-dark);
}

::-webkit-scrollbar-thumb {
    background-color: var(--accent-color);
    border-radius: 6px;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-s);
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: var(--fs-xl);
    background: linear-gradient(45deg, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    text-shadow: var(--glow-effect);
}

h2 {
    font-size: var(--fs-l);
}

h3 {
    font-size: var(--fs-m);
}

p {
    margin-bottom: var(--spacing-s);
}

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

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

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

ul, ol {
    list-style: none;
    padding-left: 0;
}

button, .btn {
    cursor: pointer;
    border: none;
    font-family: var(--font-family);
    font-size: var(--fs-xs);
    transition: var(--transition);
}

.container {
    width: 90%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-m) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-l);
}

.underline {
    height: 4px;
    width: 80px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-color-2));
    margin: 0 auto;
    margin-top: -10px;
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(0, 238, 255, 0.5);
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    margin-right: var(--spacing-s);
    font-size: var(--fs-xs);
}

.primary-btn {
    background-color: var(--accent-color);
    color: var(--primary-dark);
    box-shadow: 0 0 10px rgba(0, 238, 255, 0.5);
}

.primary-btn:hover {
    background-color: var(--accent-hover);
    color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(0, 238, 255, 0.8);
}

.secondary-btn {
    background-color: transparent;
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    box-shadow: 0 0 10px rgba(0, 238, 255, 0.3);
}

.secondary-btn:hover {
    background-color: rgba(0, 238, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(0, 238, 255, 0.5);
}

/* ====================
   Header & Navigation
   ==================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    font-size: var(--fs-m);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--accent-color);
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: var(--spacing-s);
}

.nav-links li a {
    color: var(--text-secondary);
    font-size: var(--fs-xs);
    font-weight: 500;
    padding: 0.5rem 0.8rem;
    position: relative;
}

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

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

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

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .line {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 6px 0;
    transition: var(--transition);
}

/* Header scroll state */
.header-scroll {
    background-color: var(--secondary-dark);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* ====================
   Hero Section
   ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: radial-gradient(circle at 10% 20%, rgba(0, 238, 255, 0.08) 0%, rgba(0, 0, 0, 1) 80%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 238, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 238, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 1;
}

.hero-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-l);
    position: relative;
    z-index: 2;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    margin-bottom: var(--spacing-xs);
}

.hero-text h2 {
    font-size: var(--fs-m);
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: var(--spacing-s);
}

.hero-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-m);
    max-width: 600px;
}

.cta-buttons {
    margin-bottom: var(--spacing-m);
}

.social-icons {
    display: flex;
    gap: var(--spacing-s);
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--tertiary-dark);
    border-radius: 50%;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 0 15px var(--accent-color);
}

.social-icons i {
    color: var(--text-primary);
    font-size: 1.2rem;
}

.social-icons a:hover i {
    color: var(--primary-dark);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.security-graphic {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.shield {
    position: relative;
    font-size: 8rem;
    color: var(--accent-color);
    animation: pulse 2s infinite;
    text-shadow: 0 0 15px var(--accent-color), 0 0 30px var(--accent-color);
}

.ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: ripple 2s linear infinite;
}

.binary {
    position: absolute;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--accent-color);
    opacity: 0.8;
    transform: rotate(-30deg);
    bottom: 50px;
    right: 0;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        text-shadow: 0 0 10px rgba(0, 238, 255, 0.5);
    }
    50% {
        transform: scale(1.05);
        text-shadow: 0 0 20px rgba(0, 238, 255, 0.8);
    }
    100% {
        transform: scale(1);
        text-shadow: 0 0 10px rgba(0, 238, 255, 0.5);
    }
}

@keyframes ripple {
    0% {
        width: 0;
        height: 0;
        opacity: 0.8;
    }
    100% {
        width: 200px;
        height: 200px;
        opacity: 0;
    }
}

/* ====================
   About Section
   ==================== */
.about {
    background-color: var(--secondary-dark);
    padding: var(--spacing-xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: var(--spacing-l);
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-s);
}

.contact-info {
    background-color: var(--tertiary-dark);
    padding: var(--spacing-m);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-s);
}

.contact-item i {
    color: var(--accent-color);
    font-size: 1.2rem;
    margin-right: var(--spacing-s);
    width: 20px;
}

.contact-item span {
    color: var(--text-secondary);
}

/* ====================
   Skills Section
   ==================== */
.skills {
    padding: var(--spacing-xl) 0;
    background-color: var(--primary-dark);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-l);
}

.skill-category h3 {
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-m);
    padding-bottom: var(--spacing-xs);
}

.skill-category h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-color-3));
    border-radius: 2px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-s);
}

.skill-item {
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    padding: var(--spacing-s);
    text-align: center;
    transition: var(--transition);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-color), var(--accent-color-2));
    transition: var(--transition);
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow), 0 0 15px rgba(0, 238, 255, 0.5);
}

.skill-item span {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--fs-xs);
}

/* ====================
   Projects Section
   ==================== */
.projects {
    background-color: var(--secondary-dark);
    padding: var(--spacing-xl) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-l);
}

.project-card {
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px -15px rgba(0, 0, 0, 0.7), 0 0 15px rgba(0, 238, 255, 0.5);
    border: 1px solid rgba(0, 238, 255, 0.3);
}

.project-header {
    padding: var(--spacing-s);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.project-header h3 {
    margin-bottom: 0;
    color: var(--accent-color);
}

.project-links {
    display: flex;
    gap: var(--spacing-xs);
}

.project-links a {
    color: var(--text-muted);
    font-size: 1.2rem;
}

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

.project-body {
    padding: var(--spacing-s);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-s);
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: auto;
}

.project-tech span {
    background-color: rgba(0, 238, 255, 0.1);
    color: var(--accent-color);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
}

/* ====================
   Timeline Styles (for Experience and Education)
   ==================== */
.experience, .education {
    padding: var(--spacing-xl) 0;
}

.experience {
    background-color: var(--primary-dark);
}

.education {
    background-color: var(--secondary-dark);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--accent-color);
    top: 0;
    bottom: 0;
    left: 20px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    margin-bottom: var(--spacing-m);
}

.timeline-icon {
    position: absolute;
    width: 40px;
    height: 40px;
    left: 0;
    background-color: var(--tertiary-dark);
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-icon i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.timeline-content {
    padding: var(--spacing-m);
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8);
}

.timeline-content h3 {
    color: var(--accent-color);
    margin-bottom: 5px;
}

.timeline-content h4 {
    color: var(--text-secondary);
    font-size: var(--fs-s);
    margin-bottom: 10px;
    font-weight: 500;
}

.timeline-date {
    display: inline-block;
    padding: 4px 10px;
    background-color: rgba(0, 238, 255, 0.1);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: var(--spacing-s);
}

.timeline-content ul {
    list-style-type: disc;
    padding-left: 20px;
    color: var(--text-secondary);
}

.timeline-content ul li {
    margin-bottom: 8px;
}

.timeline-content ul li::marker {
    color: var(--accent-color);
}

.timeline-content p {
    color: var(--text-secondary);
}

/* ====================
   Certifications Section
   ==================== */
.certifications {
    background-color: var(--secondary-dark);
    padding: var(--spacing-xl) 0;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-m);
}

.certification-card {
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    padding: var(--spacing-m);
    display: flex;
    align-items: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.certification-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8);
}

.certification-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--accent-color), var(--accent-color-3));
    margin-right: var(--spacing-s);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.certification-logo i {
    color: var(--primary-dark);
    font-size: 1.8rem;
}

.certification-content {
    flex-grow: 1;
}

.certification-content h3 {
    font-size: var(--fs-s);
    margin-bottom: 5px;
}

.certification-content p {
    color: var(--text-muted);
    font-size: var(--fs-xs);
    margin-bottom: 0;
}

/* ====================
   Achievements Section
   ==================== */
.achievements {
    background-color: var(--primary-dark);
    padding: var(--spacing-xl) 0;
}

.achievements-list {
    max-width: 800px;
    margin: 0 auto;
}

.achievement-content ul li::marker {
    color: var(--accent-color);
}

.achievement-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-m);
    padding: var(--spacing-m);
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.achievement-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8);
}

.achievement-icon {
    background: linear-gradient(145deg, var(--accent-color), var(--accent-color-3));
    color: var(--primary-dark);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-s);
    flex-shrink: 0;
}

.achievement-icon i {
    font-size: 1.5rem;
}

.achievement-content {
    flex-grow: 1;
}

.achievement-content h3 {
    margin-bottom: 5px;
    color: var(--text-primary);
}

.achievement-content p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ====================
   Trainings & Courses Section
   ==================== */
   .trainings {
    background-color: var(--secondary-dark);
    padding: var(--spacing-xl) 0;
}

.trainings-container {
    max-width: 800px;
    margin: 0 auto;
}

.training-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-m);
    padding: var(--spacing-m);
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.training-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8);
}

.training-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--accent-color-2), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-s);
    flex-shrink: 0;
}

.training-icon i {
    color: var(--primary-dark);
    font-size: 1.5rem;
}

.training-content {
    flex-grow: 1;
}

.training-content h3 {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.training-content ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin-top: 0.5rem;
    color: var(--text-secondary);
}

.training-content ul li {
    margin-bottom: 6px;
    line-height: 1.5;
}

.training-content ul li::marker {
    color: var(--accent-color);
}


/* ====================
   article Section
   ==================== */
.article {
    background-color: var(--secondary-dark);
    padding: var(--spacing-xl) 0;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-l);
    margin-bottom: var(--spacing-l);
}

.article-card {
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px -15px rgba(0, 0, 0, 0.8);
}

.article-img {
    overflow: hidden;
    height: 200px;
}

.article-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-card:hover .article-img img {
    transform: scale(1.05);
}

.article-content {
    padding: var(--spacing-m);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.article-content h3 {
    font-size: var(--fs-s);
    margin-bottom: var(--spacing-s);
    line-height: 1.4;
}

.article-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-s);
    flex-grow: 1;
}

.read-more {
    display: inline-flex;
    align-items: center;
    margin-top: auto;
    color: var(--accent-color);
    font-weight: 500;
    font-size: var(--fs-xs);
}

.read-more i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(3px);
}

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

/* ====================
   Contact Section
   ==================== */
.contact {
    background-color: var(--primary-dark);
    padding: var(--spacing-xl) 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-l);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-m);
}

.contact-info-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-m);
    background-color: var(--tertiary-dark);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.contact-info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8);
}

.contact-info-item .icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--accent-color), var(--accent-color-3));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-m);
    flex-shrink: 0;
}

.contact-info-item .icon i {
    color: var(--primary-dark);
    font-size: 1.5rem;
}

.contact-info-item .text {
    flex-grow: 1;
}

.contact-info-item .text h3 {
    margin-bottom: 5px;
    font-size: var(--fs-s);
}

.contact-info-item .text p, .contact-info-item .text a {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.contact-form-container {
    background-color: var(--tertiary-dark);
    padding: var(--spacing-m);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: var(--spacing-s);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-family);
    transition: var(--transition);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 238, 255, 0.2);
}

.form-group input::placeholder, .form-group textarea::placeholder {
    color: var(--text-muted);
}

.contact-form-container .primary-btn {
    width: 100%;
    margin-top: var(--spacing-s);
}

/* ====================
   Footer Section
   ==================== */
footer {
    background-color: var(--secondary-dark);
    padding: var(--spacing-l) 0 var(--spacing-s);
}

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

.footer-logo {
    margin-bottom: var(--spacing-m);
}

.footer-logo a {
    font-size: var(--fs-m);
    font-weight: 700;
    color: var(--text-primary);
}

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

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-s);
    margin-bottom: var(--spacing-m);
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--tertiary-dark);
    border-radius: 50%;
    transition: var(--transition);
}

.footer-social a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-social i {
    color: var(--text-primary);
    font-size: 1.2rem;
}

.footer-social a:hover i {
    color: var(--primary-dark);
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-m);
}

.footer-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

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

.footer-bottom {
    margin-top: var(--spacing-m);
    padding-top: var(--spacing-s);
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: var(--fs-xs);
    margin-bottom: 0;
}

/* Theme toggle button */
.theme-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--tertiary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.theme-toggle:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.8);
}

.theme-toggle i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.theme-toggle .fa-sun {
    display: none;
}

/* Light theme styles can be added with a .light-theme class */
.light-theme {
    /* This will be implemented in JavaScript */
}

/* ====================
   Media Queries
   ==================== */

/* Large devices (laptops/desktops, up to 1200px) */
@media only screen and (max-width: 1200px) {
    :root {
        --fs-xl: 3rem;
        --fs-l: 2.2rem;
        --fs-m: 1.3rem;
    }

    .nav-links {
        gap: var(--spacing-xs);
    }

    .container {
        width: 95%;
    }
}

/* Medium devices (tablets, up to 992px) */
@media only screen and (max-width: 992px) {
    :root {
        --fs-xl: 2.8rem;
        --fs-l: 2rem;
        --fs-m: 1.2rem;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background-color: var(--secondary-dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.5s;
        z-index: 900;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
    }

    .nav-active {
        right: 0;
    }

    .hamburger {
        display: block;
        z-index: 1000;
    }

    .hamburger.active .line:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .line:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .line:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text p {
        margin: 0 auto var(--spacing-m);
    }

    .social-icons {
        justify-content: center;
    }

    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .projects-grid,
    .article-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }

    .certifications-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

/* Small devices (mobile phones, up to 768px) */
@media only screen and (max-width: 768px) {
    :root {
        --fs-xl: 2.5rem;
        --fs-l: 1.8rem;
        --fs-m: 1.1rem;
        --fs-s: 1rem;
    }

    .section-header {
        margin-bottom: var(--spacing-m);
    }

    .skills-container {
        gap: var(--spacing-m);
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .projects-grid,
    .article-grid {
        grid-template-columns: 1fr;
    }

    .timeline::after {
        left: 15px;
    }

    .timeline-icon {
        width: 30px;
        height: 30px;
        left: 0;
    }

    .timeline-icon i {
        font-size: 0.9rem;
    }

    .timeline-item {
        padding-left: 30px;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-container {
        margin-top: var(--spacing-m);
    }
}

/* Extra small devices (small mobile phones, up to 576px) */
@media only screen and (max-width: 576px) {
    :root {
        --fs-xl: 2.2rem;
        --fs-l: 1.6rem;
        --fs-m: 1rem;
        --spacing-xl: 3rem;
        --spacing-l: 2rem;
    }

    .container {
        width: 90%;
        padding: var(--spacing-s) 0;
    }

    .hero {
        padding-top: 60px;
    }

    .hero-text h2 {
        font-size: 1rem;
    }

    .security-graphic {
        width: 200px;
        height: 200px;
    }

    .shield {
        font-size: 5rem;
    }

    .binary {
        font-size: 0.6rem;
        bottom: 30px;
    }

    .cta-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: var(--spacing-xs);
        margin-right: 0;
    }

    .achievement-item,
    .training-item,
    .contact-info-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .achievement-icon,
    .training-icon,
    .contact-info-item .icon {
        margin-bottom: var(--spacing-s);
    }

    .theme-toggle {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }

    .theme-toggle i {
        font-size: 1.2rem;
    }

    .footer-links {
        gap: var(--spacing-s);
        flex-direction: column;
    }
}