/* ==========================================================================
   IusOrg - Hoja de estilos principal
   Estilo: moderno y discreto. Paleta neutra + acento verde bosque.
   ========================================================================== */

/* ----- Variables ----- */
:root {
    --color-bg: #FAFAF7;
    --color-surface: #FFFFFF;
    --color-surface-alt: #F3F2EC;
    --color-text: #1A1F1C;
    --color-text-soft: #5B625E;
    --color-border: #E3E1D8;
    --color-accent: #2C5F4F;
    --color-accent-hover: #234B3F;
    --color-accent-soft: #E8EFEB;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;

    --shadow-sm: 0 1px 2px rgba(26, 31, 28, 0.04);
    --shadow-md: 0 6px 20px rgba(26, 31, 28, 0.06);
    --shadow-lg: 0 14px 40px rgba(26, 31, 28, 0.10);

    --container-max: 1160px;
    --header-h: 68px;

    --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
    --font-serif: 'Lora', Georgia, 'Times New Roman', serif;
}

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; line-height: 1.25; margin: 0; }
p { margin: 0; }

/* ----- Layout helpers ----- */
.ius-container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}
.ius-hidden { display: none !important; }

/* ----- Botones ----- */
.ius-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background-color .2s ease, color .2s ease, transform .15s ease, border-color .2s ease;
    white-space: nowrap;
}
.ius-btn--primary {
    background-color: var(--color-accent);
    color: #fff;
}
.ius-btn--primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}
.ius-btn--ghost {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}
.ius-btn--ghost:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ===== HEADER ===== */
.ius-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(250, 250, 247, 0.92);
    backdrop-filter: saturate(160%) blur(10px);
    -webkit-backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid var(--color-border);
}
.ius-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
}
.ius-logo__mark {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-accent);
}

.ius-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}
.ius-nav__link {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--color-text-soft);
    position: relative;
    transition: color .2s ease;
}
.ius-nav__link:hover,
.ius-nav__link.is-active {
    color: var(--color-text);
}
.ius-nav__link.is-active::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -22px;
    height: 2px;
    background-color: var(--color-accent);
    border-radius: 2px;
}
.ius-nav__cta { margin-left: 8px; }

/* Botón hamburguesa */
.ius-nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    border-radius: var(--radius-sm);
    transition: background-color .2s ease;
}
.ius-nav-toggle:hover { background-color: var(--color-surface-alt); }
.ius-nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: transform .25s ease, opacity .2s ease;
}
.ius-nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ius-nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.ius-nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO ===== */
.ius-hero {
    padding: 96px 0 80px;
    background:
        radial-gradient(ellipse at top right, var(--color-accent-soft) 0%, transparent 55%),
        var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}
.ius-hero__inner { max-width: 760px; }
.ius-eyebrow {
    display: inline-block;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    background-color: var(--color-accent-soft);
    padding: 6px 12px;
    border-radius: 999px;
    margin-bottom: 20px;
}
.ius-hero__title {
    font-size: clamp(34px, 5vw, 52px);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
}
.ius-hero__lead {
    font-size: 18px;
    color: var(--color-text-soft);
    margin-bottom: 32px;
    max-width: 620px;
}
.ius-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* ===== SECCIONES ===== */
.ius-section {
    padding: 80px 0;
}
.ius-section--alt {
    background-color: var(--color-surface-alt);
}
.ius-section__head {
    max-width: 640px;
    margin-bottom: 48px;
}
.ius-section__tag {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    margin-bottom: 12px;
}
.ius-section__title {
    font-size: clamp(28px, 3.5vw, 38px);
    letter-spacing: -0.015em;
    margin-bottom: 14px;
}
.ius-section__desc {
    font-size: 17px;
    color: var(--color-text-soft);
}

/* ===== CARDS / TARJETONES ===== */
.ius-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}
.ius-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.ius-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent-soft);
}
.ius-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background-color: var(--color-accent-soft);
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}
.ius-card__title {
    font-size: 22px;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}
.ius-card__text {
    font-size: 15.5px;
    color: var(--color-text-soft);
    margin-bottom: 24px;
    flex-grow: 1;
}
.ius-card__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--color-accent);
    transition: gap .2s ease, color .2s ease;
}
.ius-card__link:hover {
    color: var(--color-accent-hover);
    gap: 12px;
}

/* ===== FOOTER ===== */
.ius-footer {
    background-color: #1A1F1C;
    color: #C8CDC9;
    padding: 56px 0 32px;
}
.ius-footer__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 32px;
}
.ius-footer__brand { max-width: 320px; }
.ius-footer .ius-logo__mark { color: #fff; }
.ius-footer__tagline {
    margin-top: 10px;
    font-size: 14px;
    color: #9AA39E;
}
.ius-footer__nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.ius-footer__nav a {
    font-size: 14px;
    color: #C8CDC9;
    transition: color .2s ease;
}
.ius-footer__nav a:hover { color: #fff; }
.ius-footer__copy {
    width: 100%;
    border-top: 1px solid #2A312D;
    padding-top: 24px;
    margin-top: 16px;
    font-size: 13px;
    color: #7A807C;
}

/* ============================================================
   SECCIÓN DE CONTACTO (formulario)
   ============================================================ */
.ius-contact {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 56px;
    align-items: start;
}
.ius-contact__info {
    /* columna izquierda: títulos + datos de contacto */
}
.ius-contact__info .ius-section__tag { margin-bottom: 12px; }
.ius-contact__info .ius-section__title { font-size: clamp(26px, 3vw, 34px); margin-bottom: 12px; }
.ius-contact__info .ius-section__desc { margin-bottom: 32px; }

.ius-contact__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.ius-contact__list li {
    font-size: 15px;
    color: var(--color-text);
}
.ius-contact__list a {
    color: var(--color-accent);
    font-weight: 500;
    transition: color .2s ease;
}
.ius-contact__list a:hover { color: var(--color-accent-hover); }
.ius-contact__label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-soft);
    margin-bottom: 4px;
}

.ius-contact__form {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow: var(--shadow-md);
}
.ius-contact__form .ius-field { margin-bottom: 18px; }
.ius-contact__form textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}
.ius-contact__form select,
.ius-contact__form textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 15px;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: border-color .2s ease, box-shadow .2s ease;
}
.ius-contact__form select:focus,
.ius-contact__form textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.ius-contact__submit {
    width: 100%;
    margin-top: 8px;
}
.ius-contact__hint {
    text-align: center;
    font-size: 14px;
    margin-top: 16px;
    min-height: 20px;
    color: var(--color-text-soft);
}
.ius-contact__hint.is-ok { color: var(--color-accent); font-weight: 600; }
.ius-contact__hint.is-error { color: #A33A3A; font-weight: 600; }

@media (max-width: 820px) {
    .ius-contact {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .ius-contact__form { padding: 28px 24px; }
}

/* ============================================================
   PÁGINAS SECUNDARIAS (sobre, faq, ingresar)
   ============================================================ */
.ius-page {
    padding: 72px 0 96px;
}
.ius-page__head {
    max-width: 720px;
    margin-bottom: 48px;
}
.ius-page__title {
    font-size: clamp(30px, 4vw, 44px);
    letter-spacing: -0.02em;
    margin-bottom: 14px;
}
.ius-page__lead {
    font-size: 18px;
    color: var(--color-text-soft);
}
.ius-prose p {
    font-size: 16.5px;
    color: var(--color-text-soft);
    margin-bottom: 18px;
    max-width: 720px;
}
.ius-prose h3 {
    font-size: 22px;
    margin: 36px 0 12px;
    color: var(--color-text);
}

/* FAQ acordeón */
.ius-faq { max-width: 800px; }
.ius-faq__item {
    border-bottom: 1px solid var(--color-border);
}
.ius-faq__q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    text-align: left;
    padding: 22px 0;
    font-size: 16.5px;
    font-weight: 600;
    color: var(--color-text);
    font-family: var(--font-sans);
}
.ius-faq__q .ius-faq__chev {
    flex-shrink: 0;
    transition: transform .25s ease;
    color: var(--color-accent);
}
.ius-faq__item.is-open .ius-faq__chev { transform: rotate(180deg); }
.ius-faq__a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
}
.ius-faq__a-inner {
    padding: 0 0 22px;
    color: var(--color-text-soft);
    font-size: 15.5px;
    max-width: 720px;
}

/* Login */
.ius-auth {
    max-width: 420px;
    margin: 0 auto;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    box-shadow: var(--shadow-md);
}
.ius-auth__title {
    font-size: 26px;
    text-align: center;
    margin-bottom: 8px;
}
.ius-auth__subtitle {
    text-align: center;
    color: var(--color-text-soft);
    font-size: 14.5px;
    margin-bottom: 28px;
}
.ius-field { margin-bottom: 18px; }
.ius-field label {
    display: block;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}
.ius-field input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 15px;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: border-color .2s ease, box-shadow .2s ease;
}
.ius-field input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.ius-auth__submit {
    width: 100%;
    margin-top: 8px;
}
.ius-auth__hint {
    text-align: center;
    font-size: 13.5px;
    color: var(--color-text-soft);
    margin-top: 22px;
}
.ius-auth__hint a {
    color: var(--color-accent);
    font-weight: 600;
}

/* ============================================================
   PÁGINAS INTERNAS DE CARDS (layout genérico)
   ============================================================ */
.ius-detail {
    padding: 56px 0 80px;
}
.ius-breadcrumb {
    font-size: 13.5px;
    color: var(--color-text-soft);
    margin-bottom: 24px;
}
.ius-breadcrumb a {
    color: var(--color-text-soft);
    transition: color .2s ease;
}
.ius-breadcrumb a:hover { color: var(--color-accent); }
.ius-breadcrumb span { margin: 0 8px; color: var(--color-border); }

.ius-detail__hero {
    max-width: 760px;
    margin-bottom: 48px;
}
.ius-detail__eyebrow {
    display: inline-block;
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    background-color: var(--color-accent-soft);
    padding: 6px 12px;
    border-radius: 999px;
    margin-bottom: 18px;
}
.ius-detail__title {
    font-size: clamp(30px, 4vw, 44px);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 18px;
}
.ius-detail__lead {
    font-size: 18px;
    color: var(--color-text-soft);
}

.ius-detail__body {
    max-width: 760px;
}
.ius-detail__body h3 {
    font-size: 22px;
    margin: 36px 0 12px;
    color: var(--color-text);
}
.ius-detail__body p {
    font-size: 16.5px;
    color: var(--color-text-soft);
    margin-bottom: 18px;
}
.ius-detail__body ul {
    margin: 0 0 22px 0;
    padding-left: 22px;
}
.ius-detail__body li {
    font-size: 16px;
    color: var(--color-text-soft);
    margin-bottom: 8px;
}

/* Caja destacada para "próximos pasos" / CTA */
.ius-cta-box {
    margin-top: 48px;
    padding: 32px;
    background-color: var(--color-accent-soft);
    border: 1px solid var(--color-accent);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);
}
.ius-cta-box h4 {
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.ius-cta-box p {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 18px;
}
.ius-cta-box .ius-btn { margin-top: 4px; }

/* Pasos numerados (para flujos tipo "cómo crear ONG") */
.ius-steps {
    list-style: none;
    padding: 0;
    margin: 32px 0;
    counter-reset: paso;
}
.ius-steps li {
    counter-increment: paso;
    position: relative;
    padding-left: 56px;
    margin-bottom: 24px;
    min-height: 40px;
}
.ius-steps li::before {
    content: counter(paso);
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: #fff;
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ius-steps li strong {
    display: block;
    color: var(--color-text);
    font-size: 16.5px;
    font-weight: 600;
    margin-bottom: 4px;
}
.ius-steps li span {
    color: var(--color-text-soft);
    font-size: 15px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 880px) {
    /* Menú móvil: muestra las MISMAS opciones que desktop */
    .ius-nav-toggle { display: flex; }
    .ius-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background-color: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        padding: 12px 24px 20px;
        transform: translateY(-130%);
        opacity: 0;
        pointer-events: none;
        transition: transform .3s ease, opacity .3s ease;
    }
    .ius-nav.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .ius-nav__link {
        padding: 14px 0;
        border-bottom: 1px solid var(--color-border);
        font-size: 16px;
    }
    .ius-nav__link.is-active::after { display: none; }
    .ius-nav__cta {
        margin-left: 0;
        margin-top: 14px;
        padding: 14px;
        justify-content: center;
    }
}

@media (max-width: 720px) {
    .ius-container { padding: 0 20px; }
    .ius-hero { padding: 64px 0 56px; }
    .ius-section { padding: 56px 0; }
    /* Tarjetones apilados en móvil - mismas opciones disponibles */
    .ius-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .ius-card { padding: 28px 24px; }
    .ius-section__head { margin-bottom: 32px; }
    .ius-footer__inner { flex-direction: column; }
    .ius-cta-box { padding: 24px; }
}

@media (max-width: 420px) {
    .ius-hero__actions .ius-btn { width: 100%; }
}