/* ============================================================
   RESUME SITE — STYLE.CSS
   Aesthetic: Editorial / Refined Minimal with warm accent
   Fonts: DM Serif Display (headings) + Manrope (body)
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
    --color-bg: #FAFAF7;
    --color-surface: #FFFFFF;
    --color-text: #1A1A1A;
    --color-text-secondary: #6B6B6B;
    --color-accent: #2D5A3D;
    --color-accent-light: #E8F0EB;
    --color-accent-hover: #1E3F2B;
    --color-border: #E5E5E0;
    --color-dark-bg: #1A1A1A;
    --color-dark-text: #FAFAF7;

    --font-heading: 'DM Serif Display', Georgia, serif;
    --font-body: 'Manrope', -apple-system, sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 10rem;

    --max-width: 1200px;
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

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

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

/* ---------- Utilities ---------- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-xl) 0;
}

.section-label {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.section-heading {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

/* ---------- Reveal Animations ---------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

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

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.nav.scrolled {
    background: rgba(250, 250, 247, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 var(--color-border);
    padding: 0.6rem 0;
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-links a {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: var(--color-text-secondary);
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-accent);
    transition: width var(--transition);
}

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

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

.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(--color-text);
    transition: var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--color-dark-bg);
    color: var(--color-dark-text);
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(45, 90, 61, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(45, 90, 61, 0.1) 0%, transparent 40%);
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: var(--space-md);
}

.hero-greeting {
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(250, 250, 247, 0.6);
    margin-bottom: var(--space-sm);
}

.hero-name {
    font-family: var(--font-heading);
    font-size: clamp(3.5rem, 10vw, 8rem);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.hero-lastname {
    color: var(--color-accent);
}

.hero-title {
    font-size: 1.25rem;
    font-weight: 300;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(250, 250, 247, 0.7);
    margin-bottom: var(--space-sm);
}

.hero-tagline {
    font-size: 1.1rem;
    font-weight: 300;
    color: rgba(250, 250, 247, 0.5);
    max-width: 500px;
    margin: 0 auto var(--space-md);
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.85rem 2rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 4px;
    transition: all var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border: 2px solid var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-dark-text);
    border: 2px solid rgba(250, 250, 247, 0.3);
}

.btn-outline:hover {
    border-color: var(--color-dark-text);
    transform: translateY(-2px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.scroll-indicator span {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(250, 250, 247, 0.4);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(250, 250, 247, 0.4), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.about-text h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

.about-text h2 em {
    color: var(--color-accent);
    font-style: normal;
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
    font-size: 1.05rem;
}

.about-details {
    display: grid;
    gap: var(--space-sm);
}

.detail-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--space-sm) 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.detail-label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.detail-value {
    font-weight: 500;
    font-size: 0.95rem;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills {
    background: var(--color-dark-bg);
    color: var(--color-dark-text);
}

.skills .section-label {
    color: rgba(250, 250, 247, 0.5);
}

.skills .section-heading {
    color: var(--color-dark-text);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.skill-category h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
    color: var(--color-accent);
}

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

.tag {
    background: rgba(250, 250, 247, 0.08);
    border: 1px solid rgba(250, 250, 247, 0.12);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 400;
    color: rgba(250, 250, 247, 0.8);
    transition: all var(--transition);
}

.tag:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

/* ============================================================
   EXPERIENCE
   ============================================================ */
.timeline {
    position: relative;
    padding-left: var(--space-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-lg);
}

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

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--space-lg) + 2px);
    top: 8px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 2px solid var(--color-accent);
}

.timeline-date {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.timeline-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.timeline-company {
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.timeline-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-details li {
    color: var(--color-text-secondary);
    padding-left: 1.25rem;
    position: relative;
    font-size: 0.95rem;
}

.timeline-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 6px;
    height: 1px;
    background: var(--color-accent);
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
    border-color: var(--color-accent);
}

.project-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-accent-light);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.project-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.project-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    flex-grow: 1;
    margin-bottom: var(--space-sm);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: var(--space-sm);
}

.project-tech span {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    padding: 0.25rem 0.6rem;
    background: var(--color-accent-light);
    color: var(--color-accent);
    border-radius: 4px;
}

.project-link-text {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    transition: letter-spacing var(--transition);
}

.project-card:hover .project-link-text {
    letter-spacing: 0.05em;
}

/* ============================================================
   EDUCATION
   ============================================================ */
.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.edu-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-md);
    transition: all var(--transition);
}

.edu-card:hover {
    border-color: var(--color-accent);
}

.edu-year {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.edu-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 0.25rem;
}

.edu-school {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
    background: var(--color-dark-bg);
    color: var(--color-dark-text);
}

.contact .section-label {
    color: rgba(250, 250, 247, 0.5);
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--space-sm);
}

.contact-content p {
    color: rgba(250, 250, 247, 0.6);
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.05rem;
    color: rgba(250, 250, 247, 0.7);
    transition: all var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.contact-link:hover {
    color: var(--color-dark-text);
    background: rgba(250, 250, 247, 0.05);
}

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

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    text-align: center;
    padding: var(--space-md) 0;
    background: var(--color-dark-bg);
    border-top: 1px solid rgba(250, 250, 247, 0.08);
    color: rgba(250, 250, 247, 0.3);
    font-size: 0.85rem;
}

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

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

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

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

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 600px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-md);
        transition: right var(--transition);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-name {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .section {
        padding: var(--space-lg) 0;
    }

    .timeline {
        padding-left: var(--space-md);
    }

    .timeline-marker {
        left: calc(-1 * var(--space-md) + 2px);
    }

    .detail-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
}