/* Reset */

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

/* Variables */
:root {
    --navy: #0a192f;
    --navy-light: #112240;
    --white: #e6f1ff;
    --slate: #8892b0;
    --accent: #64ffda;
    --font-main: 'Segoe UI', system-ui, sans-serif;
}

/* Base */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font--main);
    background-color: var(--navy);
    color: var(--white);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Nav Bar */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background-color: rgba(10, 25, 47, 0.92);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    z-index: 1000;
    border-bottom: 1px solid rgba(100, 255, 218, 0.1);
}

.nav.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
}

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

.nav-links a {
    color: var(--white);
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--accent);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    padding-top: 80px;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero-greeting {
    color: var(--accent);
    font-size: 1rem;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.hero-name {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.hero-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 400;
    color: var(--slate);
    margin-bottom: 1.5rem;
}

.hero-sub {
    font-size: 1rem;
    color: var(--slate);
    max-width: 540px;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Buttons  */
.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.2s ease;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: transparent;
    outline: 1px solid var(--accent);
    color: var(--accent);
}

.btn-outline {
    background-color: transparent;
    outline: 1px solid var(--accent);
    color: var(--accent);
}

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

/* Layout */

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.section-alt {
    background-color: var(--navy-light);
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--accent);
    margin-top: 0.5rem;
}

/* Skills */
.skill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    background-color: var(--navy);
    border: 1px solid rgba(100, 255, 218, 0.15);
    border-radius: 6px;
    padding: 1.5rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.skill-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.skill-card h3 {
    color: var(--accent);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.skill-card li {
    color: var(--slate);
    font-size: 0.95rem;
    padding: 0.35rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-card li:last-child {
    border-bottom: none;
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid: 1.5rem
}

.project-card {
    background-color: var(--navy-light);
    border: 1px solid rgba(100, 255, 218, 0.1);
    border-radius: 6px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.project-header h3 {
    color: var(--white);
    font-size: 1.1rem;
    line-height: 1.3;
}

.project-status {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 20px;
    padding: 0.25rem 0.6rem;
    white-space: nowrap;
}

.project-card p {
    color: var(--slate);
    font-size: 0.95rem;
    line-height: 1.7;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tags span {
    font-size: 0.75rem;
    color: var(--accent);
    background-color: rgba(100, 255, 218, 0.08);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    letter-spacing: 1px;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-links .btn {
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
}

/* Timeline */

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: rgba(100, 255, 218, 0.2);
}

.timeline-item {
    position: relative;
    padding-bottom: 3rem;
}

.timeline-item::last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.4rem;
    top: 0.4rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent);
    border: 2px solid var(--navy);
}

.timeline-date {
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    color: var(--white);
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.timeline-content h4 {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 400;
    margin-bottom: 0.75rem;
}

.timeline-content p {
    color: var(--slate);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Contact */

.contact-container {
    text-align: center;
    max-width: 600px;
}

.content-sub {
    color: var(--slate);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Footer */

.footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid rgba(100, 255, 218, 0.1);
    color: var(--slate);
    font-size: 0.85rem;
}

.footer-sub {
    margin-top: 0.5rem;
    color: rgba(136, 146, 176, 0.6);
    font-size: 0.8rem;
}

/* ACTIVE NAV LINK  */
.nav-links a.active {
    color: var(--accent);
}

/*  MOBILE  */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background-color: var(--navy-light);
        padding: 1.5rem 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid rgba(100, 255, 218, 0.1);
    }

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

    .hero-cta {
        flex-direction: column;
    }

    .project-header {
        flex-direction: column;
    }
}