/* ========================================
   LAYOUT — Nativos América
   ======================================== */

body {
    font-family: var(--font-body);
    font-size: var(--fs-body);
    color: var(--white);
    background: var(--black-deep);
}

/* ── Container ── */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--section-pad-x);
}

.container--wide {
    max-width: var(--max-width-wide);
}

/* ── Section base ── */
section {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--section-pad-y) var(--section-pad-x);
    overflow: hidden;
}

/* ── Section heading pattern ── */
.section-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: var(--fs-h2);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.section-header p {
    font-size: var(--fs-body);
    color: var(--white-muted);
    max-width: 640px;
    margin: 0 auto;
}

.section-header .accent-line {
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--green-vivid), var(--gold-earth));
    margin: var(--space-sm) auto 0;
    border-radius: 2px;
}

/* ── Scroll reveal ── */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
}

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

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

/* ── Floating header / nav ── */
.nav-floating {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: rgba(5, 13, 9, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    transition: background var(--duration-normal) var(--ease-out),
        padding var(--duration-normal) var(--ease-out);
}

.nav-floating.scrolled {
    background: rgba(5, 13, 9, 0.92);
    padding: 0.6rem var(--space-md);
}

.nav-floating .logo {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--white);
}

.nav-floating .logo img {
    height: 42px;
    width: auto;
    filter: drop-shadow(0 0 8px var(--green-glow));
    transition: filter var(--duration-normal);
}

.nav-floating .logo:hover img {
    filter: drop-shadow(0 0 16px var(--green-glow));
}

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

.desktop-nav a {
    font-size: var(--fs-small);
    font-weight: 500;
    color: var(--white-muted);
    letter-spacing: 0.03em;
    text-transform: uppercase;
    position: relative;
    padding: 0.3rem 0;
    transition: color var(--duration-fast);
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green-vivid), var(--gold-earth));
    border-radius: 1px;
    transition: width var(--duration-normal) var(--ease-out);
}

.desktop-nav a:hover {
    color: var(--white);
}

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

.nav-actions {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

/* ── Language toggle ── */
.lang-toggle {
    display: flex;
    gap: 2px;
    background: var(--white-ghost);
    border-radius: 20px;
    padding: 3px;
    margin-right: var(--space-sm);
}

.lang-toggle button {
    padding: 0.3rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    border-radius: 18px;
    color: var(--white-muted);
    transition: all var(--duration-fast);
}

.lang-toggle button.active {
    background: var(--green-vivid);
    color: var(--black-deep);
}

.lang-toggle button:hover:not(.active) {
    color: var(--white);
}

/* ── CTA Buttons ── */
.cta-nav {
    padding: 0.55rem 1.4rem;
    font-size: var(--fs-small);
    font-weight: 600;
    border-radius: 24px;
    letter-spacing: 0.02em;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn-donar {
    background: linear-gradient(135deg, var(--green-vivid), var(--green-accent));
    color: var(--black-deep);
    box-shadow: 0 4px 20px rgba(46, 204, 113, 0.3);
}

.btn-donar:hover {
    box-shadow: 0 6px 30px rgba(46, 204, 113, 0.5);
    transform: translateY(-2px);
}

.btn-voluntariado {
    border: 1.5px solid var(--white-ghost);
    color: var(--white);
}

.btn-voluntariado:hover {
    border-color: var(--green-vivid);
    color: var(--green-vivid);
    box-shadow: 0 0 20px rgba(46, 204, 113, 0.15);
}

/* ── Mobile menu ── */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--duration-fast);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    background: rgba(5, 13, 9, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

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

.mobile-nav a {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--white-muted);
    transition: color var(--duration-fast);
}

.mobile-nav a:hover {
    color: var(--green-vivid);
}

.mobile-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    color: var(--white);
    cursor: pointer;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .desktop-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 768px) {
    section {
        min-height: auto;
        padding: var(--space-lg) var(--space-sm);
    }

    .nav-actions .btn-voluntariado {
        display: none;
    }
}