/* =============================================
   PORTFOLIO — Black & Green / Balanced
   ============================================= */

:root {
    --bg:        #0c0c0c;
    --bg-card:   #131313;
    --bg-alt:    #111111;
    --bg-hover:  #181818;
    --green:     #4ade80;
    --green-dim: rgba(74,222,128,.12);
    --green-mid: rgba(74,222,128,.25);
    --ink:       #edecea;
    --ink-2:     #7d8c7d;
    --ink-3:     #3d4d3d;
    --line:      rgba(255,255,255,0.07);
    --line-green:rgba(74,222,128,0.15);
    --serif:     'Instrument Serif', Georgia, serif;
    --sans:      'DM Sans', system-ui, sans-serif;
    --mono:      'DM Mono', monospace;
    --max:       1100px;
    --ease:      cubic-bezier(.4,0,.2,1);
    --radius:    12px;
}

/* ---- Reset ---- */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { font-size:16px; scroll-behavior:smooth; }
body { font-family:var(--sans); background:var(--bg); color:var(--ink); -webkit-font-smoothing:antialiased; }
a { color:inherit; text-decoration:none; }

/* ============ NAV ============ */
.site-header {
    position: sticky; top:0; z-index:50;
    background: rgba(12,12,12,.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
}

.nav {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 40px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .85rem;
    font-weight: 500;
    color: var(--ink);
    white-space: nowrap;
}

.logo-dot {
    width: 8px; height: 8px;
    background: var(--green);
    border-radius: 50%;
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%,100% { opacity:1; transform:scale(1); }
    50%      { opacity:.4; transform:scale(.8); }
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: .82rem;
    color: var(--ink-2);
    transition: color .2s;
    letter-spacing: .01em;
}

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

.nav-cta {
    font-size: .82rem;
    font-weight: 500;
    color: var(--bg);
    background: var(--green);
    padding: 9px 22px;
    border-radius: 100px;
    transition: opacity .2s, transform .2s;
    white-space: nowrap;
}

.nav-cta:hover { opacity: .88; transform: translateY(-1px); }

/* ============ HERO ============ */
.hero {
    max-width: var(--max);
    margin: 0 auto;
    padding: 80px 40px 100px;
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 60px;
    align-items: start;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .75rem;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--green);
    background: var(--green-dim);
    border: 1px solid var(--line-green);
    padding: 7px 16px;
    border-radius: 100px;
    margin-bottom: 32px;
}

.tag-dot {
    width: 6px; height: 6px;
    background: var(--green);
    border-radius: 50%;
}

.hero-title {
    font-family: var(--serif);
    font-size: clamp(3.2rem, 6vw, 5.2rem);
    font-weight: 400;
    line-height: 1.0;
    letter-spacing: -.03em;
    color: var(--ink);
    margin-bottom: 20px;
}

.hero-title em {
    font-style: italic;
    color: var(--green);
}

.hero-role {
    font-family: var(--mono);
    font-size: .78rem;
    color: var(--ink-2);
    letter-spacing: .06em;
    margin-bottom: 24px;
}

.hero-bio {
    font-size: 1rem;
    font-weight: 300;
    color: var(--ink-2);
    line-height: 1.75;
    max-width: 460px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* -- stat cards -- */
.hero-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-top: 8px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px 22px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color .25s;
}

.stat-card:hover { border-color: var(--line-green); }

.stat-num {
    font-family: var(--serif);
    font-size: 2.8rem;
    font-weight: 400;
    color: var(--green);
    line-height: 1;
    letter-spacing: -.04em;
}

.stat-label {
    font-size: .75rem;
    color: var(--ink-2);
    line-height: 1.4;
}

.stat-card--wide {
    grid-column: span 2;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.stat-mono {
    font-family: var(--mono);
    font-size: .8rem;
    color: var(--ink-2);
}

.stat-link {
    font-size: .78rem;
    font-weight: 500;
    color: var(--green);
    transition: opacity .2s;
}

.stat-link:hover { opacity: .7; }

/* ============ BUTTONS ============ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    background: var(--green);
    color: #0c0c0c;
    font-weight: 500;
    font-size: .88rem;
    padding: 13px 28px;
    border-radius: 100px;
    transition: opacity .2s, transform .2s;
}

.btn-primary:hover { opacity:.88; transform:translateY(-1px); }

.btn-ghost {
    display: inline-flex;
    align-items: center;
    background: transparent;
    color: var(--ink-2);
    font-size: .88rem;
    padding: 13px 28px;
    border-radius: 100px;
    border: 1px solid var(--line);
    transition: border-color .2s, color .2s;
}

.btn-ghost:hover { border-color: var(--line-green); color: var(--green); }

.btn-lg { padding: 16px 40px; font-size: .95rem; }

/* ============ SECTIONS ============ */
.section {
    border-top: 1px solid var(--line);
    padding: 100px 0;
}

.section--alt { background: var(--bg-alt); }

.section-head {
    max-width: var(--max);
    margin: 0 auto 64px;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: end;
}

.section-num {
    font-family: var(--mono);
    font-size: .7rem;
    color: var(--green);
    letter-spacing: .12em;
    margin-bottom: 10px;
}

.section-title {
    font-family: var(--serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -.02em;
    color: var(--ink);
}

.section-title em { font-style:italic; color:var(--green); }

.section-desc {
    font-size: .95rem;
    color: var(--ink-2);
    line-height: 1.7;
    font-weight: 300;
    align-self: end;
    padding-bottom: 4px;
}

/* ============ EXPERIENCE ============ */
.exp-grid {
    max-width: var(--max);
    margin: 0 auto 48px;
    padding: 0 40px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.exp-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 28px 32px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: border-color .25s, transform .25s var(--ease);
    position: relative;
    overflow: hidden;
}

.exp-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green), transparent);
    opacity: 0;
    transition: opacity .25s;
}

.exp-card:hover { border-color:var(--line-green); transform:translateY(-3px); }
.exp-card:hover::before { opacity:1; }

.exp-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exp-index {
    font-family: var(--mono);
    font-size: .7rem;
    color: var(--green);
    letter-spacing: .08em;
}

.exp-period {
    font-family: var(--mono);
    font-size: .72rem;
    color: var(--ink-3);
    letter-spacing: .04em;
}

.exp-cargo {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.3;
}

.exp-empresa {
    font-size: .85rem;
    color: var(--ink-2);
}

/* ============ ADD FORM ============ */
.add-block {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 40px;
}

.add-details {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color .25s;
}

.add-details[open] { border-color: var(--line-green); }

.add-details summary {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 28px;
    font-size: .88rem;
    font-weight: 500;
    color: var(--ink-2);
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: color .2s;
}

.add-details summary::-webkit-details-marker { display: none; }
.add-details summary:hover { color: var(--green); }
.add-details[open] summary { color: var(--green); border-bottom: 1px solid var(--line); }

.add-icon {
    width: 24px; height: 24px;
    background: var(--green-dim);
    border: 1px solid var(--line-green);
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
    color: var(--green);
    line-height: 1;
}

.add-form {
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.form-field label {
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .07em;
    text-transform: uppercase;
    color: var(--ink-2);
}

.form-field input {
    background: var(--bg-alt);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 11px 16px;
    font-family: var(--sans);
    font-size: .88rem;
    color: var(--ink);
    outline: none;
    transition: border-color .2s;
}

.form-field input::placeholder { color: var(--ink-3); }
.form-field input:focus { border-color: rgba(74,222,128,.4); }

.add-form button {
    align-self: flex-start;
    background: var(--green);
    color: #0c0c0c;
    border: none;
    border-radius: 8px;
    padding: 12px 28px;
    font-family: var(--sans);
    font-size: .88rem;
    font-weight: 500;
    cursor: pointer;
    transition: opacity .2s;
}

.add-form button:hover { opacity: .85; }

/* ============ TOAST ============ */
.toast {
    max-width: var(--max);
    margin: 0 auto 32px;
    padding: 0 40px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast > span:first-child,
.toast-dot {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(74,222,128,.08);
    border: 1px solid rgba(74,222,128,.22);
    border-radius: 100px;
    padding: 10px 20px;
    font-size: .82rem;
    color: var(--green);
    animation: fadeUp .4s var(--ease) both;
}

.toast {
    display: block;
    padding: 0 40px;
    margin-bottom: 32px;
}

.toast-dot {
    display: inline-flex;
}

/* ============ SKILLS ============ */
.skills-grid {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: border-color .25s;
}

.skill-card:hover { border-color: var(--line-green); }

.skill-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skill-name {
    font-size: 1rem;
    font-weight: 500;
    color: var(--ink);
}

.skill-pct {
    font-family: var(--mono);
    font-size: .78rem;
    color: var(--green);
    letter-spacing: .04em;
}

.skill-desc {
    font-size: .82rem;
    color: var(--ink-2);
    line-height: 1.5;
}

.skill-bar {
    height: 3px;
    background: rgba(255,255,255,.06);
    border-radius: 100px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    background: var(--green);
    border-radius: 100px;
    width: 0;
    transition: width 1s cubic-bezier(.4,0,.2,1);
}

/* ============ PROJECTS ============ */
.projects-list {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.project-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 32px;
    transition: border-color .25s, background .25s, transform .25s var(--ease);
    margin-bottom: 10px;
}

.project-row:hover {
    border-color: var(--line-green);
    background: var(--bg-hover);
    transform: translateX(4px);
}

.project-left {
    display: flex;
    align-items: center;
    gap: 28px;
    flex: 1;
    min-width: 0;
}

.project-num {
    font-family: var(--mono);
    font-size: .7rem;
    color: var(--green);
    letter-spacing: .1em;
    flex-shrink: 0;
}

.project-info h3 {
    font-family: var(--serif);
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -.01em;
    margin-bottom: 5px;
}

.project-info p {
    font-size: .83rem;
    color: var(--ink-2);
    line-height: 1.5;
}

.project-right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

.project-tags {
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.project-tags span {
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .04em;
    color: var(--ink-2);
    background: rgba(255,255,255,.05);
    border: 1px solid var(--line);
    padding: 4px 12px;
    border-radius: 100px;
}

.project-arrow {
    font-size: 1rem;
    color: var(--ink-3);
    transition: transform .25s var(--ease), color .2s;
    flex-shrink: 0;
}

.project-row:hover .project-arrow {
    transform: translate(3px,-3px);
    color: var(--green);
}

/* ============ CONTACT ============ */
.section--contact {
    background: var(--bg-alt);
    text-align: center;
}

.contact-inner {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 40px;
}

.contact-inner .section-num { margin-bottom: 16px; }

.contact-title {
    font-family: var(--serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -.03em;
    color: var(--ink);
    margin-bottom: 20px;
}

.contact-title em { font-style:italic; color:var(--green); }

.contact-sub {
    font-size: .95rem;
    color: var(--ink-2);
    line-height: 1.7;
    font-weight: 300;
    margin-bottom: 40px;
}

.contact-links {
    margin-top: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    font-size: .85rem;
    color: var(--ink-3);
}

.contact-links a {
    color: var(--ink-2);
    transition: color .2s;
}

.contact-links a:hover { color: var(--green); }

/* ============ FOOTER ============ */
.footer {
    max-width: var(--max);
    margin: 0 auto;
    padding: 28px 40px;
    border-top: 1px solid var(--line);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-name {
    font-size: .8rem;
    font-weight: 500;
    color: var(--ink-2);
}

.footer-copy {
    font-size: .75rem;
    color: var(--ink-3);
    font-family: var(--mono);
}

/* ============ ANIMATIONS ============ */
@keyframes fadeUp {
    from { opacity:0; transform:translateY(14px); }
    to   { opacity:1; transform:translateY(0); }
}

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .55s var(--ease), transform .55s var(--ease);
}

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

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-hover); border-radius:4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(74,222,128,.2); }

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; gap: 48px; }
    .hero-right { grid-template-columns: repeat(3, 1fr); }
    .stat-card--wide { grid-column: span 3; }
    .section-head { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 640px) {
    .nav { padding: 0 20px; }
    .nav-links { display: none; }
    .hero { padding: 60px 20px 80px; }
    .section-head, .exp-grid, .skills-grid, .projects-list, .add-block, .contact-inner { padding-left:20px; padding-right:20px; }
    .hero-right { grid-template-columns: 1fr 1fr; }
    .stat-card--wide { grid-column: span 2; flex-direction: column; align-items: flex-start; }
    .project-row { flex-direction: column; align-items: flex-start; }
    .project-right { width: 100%; justify-content: space-between; }
    .footer { padding: 24px 20px; }
}