/* ============================================================
   BASE.CSS — Variables, reset, componentes compartidos
   Portafolio v2 — Fabián Albornoz
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500&family=JetBrains+Mono:wght@400;500&display=swap');

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

/* ── VARIABLES ── */
:root {
    --bg:          #0A0A0A;
    --bg2:         #111111;
    --bg3:         #1A1A1A;
    --bg4:         #222222;

    --gold:        #C9A84C;
    --gold-light:  #E8C97A;
    --gold-dim:    rgba(201, 168, 76, 0.12);
    --gold-border: rgba(201, 168, 76, 0.25);

    --text:        #F5F0E8;
    --muted:       #6B6B6B;
    --muted-light: #9A9A9A;
    --border:      rgba(255, 255, 255, 0.06);

    --font-display: 'Playfair Display', serif;
    --font-body:    'Inter', sans-serif;
    --font-mono:    'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── NAVBAR ── */
nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 3.5rem;
    height: 72px;
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: border-color 0.3s;
}

nav.scrolled { border-bottom-color: var(--gold-border); }

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.nav-logo-img {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--gold-border);
}

.nav-logo-text {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.01em;
}

.nav-logo-text span { color: var(--gold); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--muted-light);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.2s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1px;
    background: var(--gold);
    transition: width 0.3s ease;
}

.nav-links a:hover            { color: var(--gold); }
.nav-links a:hover::after,
.nav-links a.active::after    { width: 100%; }
.nav-links a.active           { color: var(--gold); }

.nav-cta {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--gold-border);
    border-radius: 2px;
    color: var(--gold);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: all 0.25s;
}

.nav-cta:hover {
    background: var(--gold);
    color: var(--bg);
}

/* ── PAGE HEADER ── */
.page-header {
    position: relative;
    z-index: 1;
    padding: 130px 3.5rem 4rem;
    border-bottom: 1px solid var(--border);
    max-width: 1200px;
    margin: 0 auto;
}

.page-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--gold);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.2rem;
    opacity: 0;
    transform: translateY(14px);
    animation: fadein 0.6s 0.1s forwards;
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.1;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(14px);
    animation: fadein 0.6s 0.25s forwards;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--muted-light);
    max-width: 520px;
    line-height: 1.8;
    opacity: 0;
    transform: translateY(14px);
    animation: fadein 0.6s 0.4s forwards;
}

/* ── CONTENT ── */
.page-content {
    position: relative;
    z-index: 1;
    padding: 5rem 3.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* ── SECTION HEADERS ── */
.section-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    color: var(--gold);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 3rem;
    color: var(--text);
}

.section-title .gold { color: var(--gold); }

/* ── DIVIDER ── */
.gold-line {
    width: 48px;
    height: 1px;
    background: var(--gold);
    margin: 1.5rem 0;
    opacity: 0.6;
}

/* ── BOTONES ── */
.btn-gold {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 14px 32px;
    background: var(--gold);
    color: var(--bg);
    border: none;
    border-radius: 2px;
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    display: inline-block;
    transition: background 0.2s, transform 0.2s;
}

.btn-gold:hover { background: var(--gold-light); transform: translateY(-2px); }

.btn-outline {
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 14px 32px;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 2px;
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: inline-block;
    transition: all 0.2s;
}

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

/* ── ANIMACIONES ── */
@keyframes fadein { to { opacity: 1; transform: translateY(0); } }

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── FOOTER ── */
footer {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    padding: 4rem 3.5rem 2.5rem;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.footer-brand .name {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.footer-brand .name span { color: var(--gold); }

.footer-brand p {
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.8;
    max-width: 260px;
}

.footer-col h4 {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.2rem;
}

.footer-col ul { list-style: none; }

.footer-col ul li { margin-bottom: 0.65rem; }

.footer-col ul li a {
    font-size: 0.85rem;
    color: var(--muted-light);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-col ul li a:hover { color: var(--gold); }

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 0.08em;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
    nav            { padding: 0 1.5rem; }
    .nav-links     { gap: 1.5rem; }
    .page-header   { padding: 110px 1.5rem 3rem; }
    .page-content  { padding: 3rem 1.5rem; }
    footer         { padding: 3rem 1.5rem 2rem; }
    .footer-inner  { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 640px) {
    .nav-links { display: none; }
    .nav-cta   { display: none; }
}
/* ── HAMBURGER BUTTON ── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid rgba(201, 168, 76, 0.25);
    border-radius: 3px;
    cursor: pointer;
    padding: 8px;
    transition: border-color 0.2s;
}

.nav-hamburger:hover { border-color: #C9A84C; }

.nav-hamburger span {
    display: block;
    width: 100%;
    height: 1px;
    background: #C9A84C;
    transition: all 0.3s ease;
    transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ── MOBILE MENU ── */
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(201, 168, 76, 0.25);
    z-index: 99;
    padding: 2rem 1.5rem;
    flex-direction: column;
    gap: 0;
    transform: translateY(-10px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu.open {
    display: flex;
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu a {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: #9A9A9A;
    text-decoration: none;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: color 0.2s;
    display: block;
}

.mobile-menu a:last-child { border-bottom: none; }

.mobile-menu a:hover,
.mobile-menu a.active { color: #C9A84C; }

.mobile-menu .mobile-cta {
    margin-top: 1.5rem;
    padding: 14px;
    background: #C9A84C;
    color: #0A0A0A;
    text-align: center;
    border-radius: 2px;
    font-weight: 600;
    border-bottom: none;
    letter-spacing: 0.1em;
}

.mobile-menu .mobile-cta:hover { background: #E8C97A; color: #0A0A0A; }

/* ── MOSTRAR HAMBURGER EN MÓVIL ── */
@media (max-width: 640px) {
    .nav-links     { display: none; }
    .nav-cta       { display: none; }
    .nav-hamburger { display: flex; }
}