/* ===== CSS Variables & Reset ===== */
:root {
    --dark-green: #1C3826;
    --medium-green: #506148;
    --sage-green: #83937F;
    --light-cream: #DCDBD5;
    --white: #ffffff;
    --text-dark: #1a1a1a;
    --text-light: #f0f0ec;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 70px;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--light-cream);
    color: var(--text-dark);
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--dark-green);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    transition: background 0.3s;
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--light-cream);
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-link {
    color: var(--light-cream);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: background 0.2s, color 0.2s;
}

.nav-link:hover {
    background: var(--medium-green);
    color: var(--white);
}

.nav-link.external {
    opacity: 0.85;
}

.nav-link.external:hover {
    opacity: 1;
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--light-cream);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--dark-green) 0%, var(--medium-green) 100%);
    color: var(--text-light);
    padding: 100px 24px 60px;
}

.hero-greeting {
    font-size: 1.1rem;
    opacity: 0.8;
    margin-bottom: 8px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-name {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.hero-title {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 400;
    color: var(--light-cream);
    margin-bottom: 20px;
}

.hero-contact {
    margin-bottom: 32px;
    font-size: 0.95rem;
    opacity: 0.85;
}

.hero-contact a {
    color: var(--light-cream);
    transition: opacity 0.2s;
}

.hero-contact a:hover {
    opacity: 1;
    text-decoration: underline;
}

.separator {
    margin: 0 12px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: var(--light-cream);
    color: var(--dark-green);
}

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

.btn-outline {
    border: 2px solid var(--light-cream);
    color: var(--light-cream);
    background: transparent;
}

.btn-outline:hover {
    background: var(--light-cream);
    color: var(--dark-green);
}

/* ===== Sections ===== */
.section {
    padding: 80px 0;
}

.section-alt {
    background: rgba(131, 147, 127, 0.1);
}

.section-title {
    font-size: 2rem;
    color: var(--dark-green);
    margin-bottom: 40px;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--sage-green);
    margin: 12px auto 0;
    border-radius: 2px;
}

/* ===== About ===== */
.about-content p {
    font-size: 1.05rem;
    color: var(--medium-green);
    margin-bottom: 16px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

/* ===== Skills ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.skill-category h3 {
    font-size: 1.1rem;
    color: var(--dark-green);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--sage-green);
}

.skill-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pill {
    display: inline-block;
    padding: 6px 14px;
    background: var(--dark-green);
    color: var(--light-cream);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background 0.2s, transform 0.2s;
}

.pill:hover {
    background: var(--medium-green);
    transform: translateY(-1px);
}

/* ===== Experience Timeline ===== */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--sage-green);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

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

.timeline-marker {
    position: absolute;
    left: -32px;
    top: 24px;
    width: 16px;
    height: 16px;
    background: var(--dark-green);
    border: 3px solid var(--light-cream);
    border-radius: 50%;
    box-shadow: 0 0 0 2px var(--sage-green);
}

.timeline-card {
    background: var(--white);
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s, transform 0.3s;
}

.timeline-card:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.card-header h3 {
    font-size: 1.25rem;
    color: var(--dark-green);
    margin-bottom: 4px;
}

.card-header .company {
    display: block;
    font-size: 1.05rem;
    color: var(--medium-green);
    font-weight: 600;
    margin-bottom: 4px;
}

.card-header .date {
    display: block;
    font-size: 0.9rem;
    color: var(--sage-green);
    margin-bottom: 4px;
}

.card-header .promotion {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--dark-green);
    background: rgba(28, 56, 38, 0.08);
    padding: 3px 10px;
    border-radius: 4px;
    margin-bottom: 8px;
    font-weight: 600;
}

.card-bullets {
    list-style: disc;
    padding-left: 20px;
    margin-top: 12px;
}

.card-bullets li {
    font-size: 0.95rem;
    color: #444;
    margin-bottom: 8px;
    line-height: 1.5;
}

/* ===== Education ===== */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.edu-card {
    background: var(--white);
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    text-align: center;
    transition: transform 0.3s;
}

.edu-card:hover {
    transform: translateY(-2px);
}

.edu-card h3 {
    color: var(--dark-green);
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.edu-field {
    color: var(--medium-green);
    font-weight: 600;
    margin-bottom: 4px;
}

.edu-school {
    color: var(--sage-green);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.edu-status,
.edu-date {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(28, 56, 38, 0.08);
    color: var(--dark-green);
}

.certifications {
    text-align: center;
}

.certifications h3 {
    font-size: 1.2rem;
    color: var(--dark-green);
    margin-bottom: 16px;
}

.cert-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.pill-cert {
    background: var(--medium-green);
    font-size: 0.9rem;
    padding: 8px 18px;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-green);
    color: var(--light-cream);
    text-align: center;
    padding: 60px 24px 32px;
}

.footer-title {
    font-size: 1.6rem;
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-links a {
    color: var(--light-cream);
    font-size: 1rem;
    padding: 8px 16px;
    border: 1px solid rgba(220, 219, 213, 0.3);
    border-radius: 6px;
    transition: background 0.2s, border-color 0.2s;
}

.footer-links a:hover {
    background: var(--medium-green);
    border-color: var(--medium-green);
}

.footer-copy {
    font-size: 0.85rem;
    opacity: 0.6;
}

/* ===== Fade-in Animation ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--dark-green);
        flex-direction: column;
        padding: 16px 24px 24px;
        gap: 4px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.3s, opacity 0.3s;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-link {
        padding: 12px 16px;
        width: 100%;
    }

    .section {
        padding: 60px 0;
    }

    .timeline {
        padding-left: 24px;
    }

    .timeline-marker {
        left: -24px;
        width: 12px;
        height: 12px;
    }

    .timeline-card {
        padding: 20px;
    }
}