/* ========================================
   CSS Variables
   ======================================== */
:root {
    --color-primary: #00d4ff;
    --color-primary-dark: #00b8d4;
    --color-secondary: #b794f6;
    --color-bg-dark: #0a0015;
    --color-bg-gradient-start: #1a0033;
    --color-bg-gradient-end: #0a0015;
    --color-nav: #0f0f0f;
    --color-text-primary: #ffffff;
    --color-text-secondary: #e0e0e0;
    --color-card-bg: rgba(15, 15, 15, 0.6);
    --color-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s ease;
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-nav);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo a {
    color: var(--color-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
}

.logo a:hover {
    color: var(--color-primary-dark);
}

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

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text-primary);
}

.nav-link.active::after,
.nav-link:hover::after {
    width: 100%;
}

.contact-btn {
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    padding: 0.6rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.contact-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--color-bg-gradient-start) 0%, var(--color-bg-gradient-end) 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
    z-index: 0;
}

/* Animated lines/particles background */
.hero-background::before,
.hero-background::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(90deg, transparent 79px, rgba(255, 255, 255, 0.1) 81px, rgba(255, 255, 255, 0.1) 82px, transparent 84px),
        linear-gradient(0deg, transparent 79px, rgba(255, 255, 255, 0.1) 81px, rgba(255, 255, 255, 0.1) 82px, transparent 84px);
    background-size: 100px 100px;
    animation: gridMove 20s linear infinite;
}

.hero-background::after {
    background-image: 
        linear-gradient(45deg, transparent 48px, rgba(0, 212, 255, 0.05) 50px, rgba(0, 212, 255, 0.05) 52px, transparent 54px),
        linear-gradient(-45deg, transparent 48px, rgba(0, 212, 255, 0.05) 50px, rgba(0, 212, 255, 0.05) 52px, transparent 54px);
    background-size: 60px 60px;
    animation: gridMove 15s linear infinite reverse;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(100px, 100px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 2rem;
}

.hero-subtitle {
    color: var(--color-primary);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.title-primary {
    color: var(--color-secondary);
}

.title-secondary {
    color: var(--color-text-primary);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-text-secondary);
}

.btn-secondary:hover {
    border-color: var(--color-text-primary);
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 1.2rem;
}

/* ========================================
   Sections
   ======================================== */
.section {
    padding: 5rem 0;
    position: relative;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

/* ========================================
   About Section
   ======================================== */
.about {
    background-color: rgba(10, 0, 21, 0.5);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* ========================================
   Education Section
   ======================================== */
.education-content {
    max-width: 700px;
    margin: 0 auto;
}

.education-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    text-align: center;
    transition: var(--transition);
}

.education-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.2);
}

.education-card h3 {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.education-institution {
    font-size: 1.2rem;
    color: var(--color-text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.education-status {
    color: var(--color-secondary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.education-details {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Skills Section
   ======================================== */
.skills {
    background-color: rgba(10, 0, 21, 0.5);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.skill-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.2);
}

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

.skill-item p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   Experience Section
   ======================================== */
.experience-timeline {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.experience-item {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    padding-left: 3rem;
}

.experience-item::before {
    content: '';
    position: absolute;
    left: 1.5rem;
    top: 2.5rem;
    width: 12px;
    height: 12px;
    background-color: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-bg-dark), 0 0 0 6px var(--color-primary);
}

.experience-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 1.94rem;
    top: 3.5rem;
    width: 2px;
    height: calc(100% + 2rem);
    background-color: var(--color-border);
}

.experience-item:hover {
    transform: translateX(10px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.2);
}

.experience-item h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.experience-organization {
    font-size: 1.1rem;
    color: var(--color-secondary);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.experience-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Projects Section
   ======================================== */
.projects {
    background-color: rgba(10, 0, 21, 0.5);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

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

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: 0 12px 35px rgba(0, 212, 255, 0.3);
}

.project-card h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.project-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Certifications Section
   ======================================== */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cert-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.cert-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.2);
}

.cert-card h3 {
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.cert-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.cert-download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    margin-top: auto;
}

.cert-download-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

.cert-download-btn .btn-icon {
    font-size: 1.1rem;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background-color: rgba(10, 0, 21, 0.5);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-email {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.contact-email strong {
    color: var(--color-text-primary);
}

.email-link {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

.email-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.gmail-btn {
    width: fit-content;
    margin-top: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-primary);
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

.social-link svg {
    width: 24px;
    height: 24px;
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1rem;
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

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

.form-message {
    padding: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    display: none;
}

.form-message.show {
    display: block;
}

.form-message.success {
    background-color: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.form-message.error {
    background-color: rgba(255, 0, 0, 0.1);
    border: 1px solid #ff4444;
    color: #ff4444;
}

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

.footer p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
    .nav-menu {
        gap: 1.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

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

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: var(--color-nav);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transition: left 0.3s ease;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        font-size: 1.1rem;
    }

    .contact-btn {
        display: none;
    }

    .hero-content {
        padding: 1rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .section {
        padding: 3rem 0;
    }

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

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

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

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

    .experience-item {
        padding-left: 2.5rem;
    }

    .experience-item::before {
        left: 1rem;
    }

    .experience-item:not(:last-child)::after {
        left: 1.44rem;
    }

    .about-content p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 15px;
    }

    .logo a {
        font-size: 1.3rem;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .container {
        padding: 0 15px;
    }

    .education-card,
    .skill-item,
    .project-card,
    .cert-card,
    .experience-item {
        padding: 1.5rem;
    }
}

.ephesis-regular {
  font-family: "Ephesis", cursive;
  font-weight: 400;
  font-style: normal;
}