:root {
    --color-bg: #f4f1ec;
    --color-ink: #121212;
    --color-muted: #5b6068;
    --color-primary: #d62828;
    --color-secondary: #1d3557;
    --color-accent: #f4d35e;
    --paper: #ffffff;
    --shadow: 0 22px 50px rgba(0, 0, 0, 0.08);
    --radius: 14px;
    --radius-sm: 8px;
    --line: 1px solid rgba(0, 0, 0, 0.08);
    --font-sm: clamp(12px, 2vw, 14px);
    --font-base: clamp(14px, 2.2vw, 16px);
    --font-lg: clamp(16px, 2.5vw, 18px);
    --font-xl: clamp(20px, 4vw, 24px);
    --font-2xl: clamp(24px, 5vw, 32px);
    --font-3xl: clamp(32px, 6vw, 44px);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--color-bg);
    color: var(--color-ink);
    line-height: 1.6;
    font-size: var(--font-base);
    overflow-x: hidden;
    /* Sticky footer logic */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all 200ms ease;
}

a:hover {
    color: var(--color-primary);
}

a:active {
    opacity: 0.7;
}

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

button {
    touch-action: manipulation;
    cursor: pointer;
    transition: all 200ms ease;
}

main {
    display: block;
    padding-top: 110px;
    flex: 1;
    /* Esto empuja el footer hacia abajo si el contenido es escaso */
}

.site-header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(5px);
    /* AJUSTAR BLUR: aumentar o disminuir px */
    background: rgba(255, 255, 255, 0.55);
    /* AJUSTAR TRANSPARENCIA: 0.85 = 85% opaco (0=invisible, 1=sólido) */
    border-bottom: var(--line);
    transition: background 180ms ease, box-shadow 180ms ease, padding 180ms ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.site-header.compact {
    background: rgba(244, 241, 236, 0.80);
    /* AJUSTAR TRANSPARENCIA: color beige semi-transparente */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.site-header.compact .nav-bar {
    padding: 3px 24px;
}

.site-header.compact .logo img {
    height: 48px;
}

.nav-bar {
    display: flex;
    align-items: center;
    padding: 5px 28px;
    gap: 24px;
    border-bottom: var(--line);
    background: rgba(255, 255, 255, 0.70);
    /* AJUSTAR TRANSPARENCIA: 0.90 = 90% opaco */
    box-shadow: var(--shadow);
    transition: padding 180ms ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: inherit;
    height: 100%;
    flex-shrink: 0;
    transition: all 200ms ease;
}

.logo:hover {
    opacity: 0.8;
}

.logo img {
    height: 96px;
    width: auto;
    object-fit: contain;
    transition: height 180ms ease;
}

.brand {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-name {
    font-family: 'Playfair Display', serif;
    font-size: var(--font-xl);
    letter-spacing: 0.02em;
    color: var(--color-primary);
    transition: color 200ms ease;
}

.brand-name:hover {
    color: var(--color-text);
}

.brand-kicker {
    font-size: var(--font-sm);
    color: var(--color-muted);
    text-align: left;
}

.main-nav {
    display: flex;
    gap: 18px;
    justify-content: center;
    flex: 1;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: var(--font-sm);
}

.main-nav a {
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 200ms ease;
}

.main-nav a:hover,
.main-nav a:focus {
    border-color: var(--color-primary);
    color: var(--color-primary);
    outline: none;
}

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    font-size: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 10px;
    border: var(--line);
    font-weight: 700;
    cursor: pointer;
    background: var(--paper);
    font-size: var(--font-sm);
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.2);
    opacity: 0;
    transition: opacity 200ms ease;
}

.btn:hover::before {
    opacity: 1;
}

.btn.primary {
    background: var(--color-primary);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 10px 30px rgba(214, 40, 40, 0.15);
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(214, 40, 40, 0.25);
}

.btn.primary:active {
    transform: translateY(0);
}

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

.container {
    width: min(1180px, 94vw);
    margin: 0 auto;
    padding: 48px 16px;
}

.section-wrapper {
    width: 100%;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

.section-wrapper.white {
    background: #ffffff;
}

.section-wrapper.tint {
    background: rgba(0, 0, 0, 0.02);
}

/* Fondo muy sutil */
.section-wrapper.dark {
    background: var(--color-ink);
    color: #fff;
}

.section-title {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 12px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.section-title h2 {
    margin: 0;
    font-family: 'Playfair Display', serif;
    font-size: var(--font-2xl);
    letter-spacing: 0.01em;
}

.kicker {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: var(--font-sm);
    color: var(--color-primary);
    font-weight: 700;
}

.tag-muted {
    color: var(--color-muted);
    font-size: var(--font-sm);
}

.site-footer {
    margin-top: 64px;
    background: var(--color-ink);
    color: #f7f7f7;
    padding: 32px 16px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
}

.site-footer h3,
.site-footer h4 {
    margin: 0 0 10px 0;
    font-family: 'Playfair Display', serif;
    font-size: var(--font-lg);
}

.site-footer p {
    margin: 0;
    font-size: var(--font-sm);
}

.footer-bottom {
    margin-top: 14px;
    font-size: var(--font-sm);
    color: #cbd5e1;
}

.site-footer .socials {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.site-footer .socials a {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.16);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: var(--font-sm);
}

@media (max-width: 1024px) {
    .container {
        margin: 40px auto;
    }

    .nav-bar {
        padding: 5px 18px;
        gap: 16px;
    }

    .logo img {
        height: 80px;
    }
}

@media (max-width: 768px) {
    .site-header {
        background: #ffffff;
        backdrop-filter: none;
    }

    /* Blanco sólido en móvil */
    .container {
        margin: 32px auto;
        width: min(100%, 95vw);
    }

    .nav-bar {
        flex-wrap: wrap;
        padding: 8px 16px;
        gap: 12px;
        position: relative;
        justify-content: center;
        background: #ffffff;
    }

    /* Blanco sólido */
    .logo img {
        height: 68px;
    }

    .brand-name {
        font-size: var(--font-lg);
    }

    .main-nav {
        display: none;
        gap: 8px;
    }

    .main-nav.active {
        display: flex;
        flex-basis: 100%;
        flex-direction: column;
        padding: 12px 0;
        border-top: var(--line);
        background: rgba(255, 255, 255, 0.4);
        /* AJUSTAR TRANSPARENCIA: 0.4 = 40% opaco (60% transparente) */
        backdrop-filter: blur(15px);
        /* AJUSTAR BLUR del menú desplegable (15px = más efecto) */
    }

    .main-nav a {
        padding: 10px 8px;
        display: block;
    }

    .nav-toggle {
        display: block;
        position: absolute;
        left: 16px;
        top: 8px;
        z-index: 10;
    }

    .site-footer {
        padding: 24px 16px;
    }
}

@media (max-width: 640px) {
    .container {
        margin: 28px auto;
    }

    .nav-bar {
        padding: 8px 12px;
    }

    .logo img {
        height: 56px;
    }

    .brand-name {
        font-size: var(--font-lg);
    }

    .brand-kicker {
        font-size: 10px;
    }

    .container {
        margin: 16px auto;
        padding: 0 12px;
    }

    .section-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .site-footer {
        padding: 20px 12px;
    }
}

/* Scroll to top button */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px);
    transition: all 400ms cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
    z-index: 999;
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: linear-gradient(135deg, #5568d3 0%, #663a8f 100%);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.4);
}

.scroll-to-top:active {
    transform: translateY(-2px);
}

.scroll-to-top span {
    font-weight: bold;
    line-height: 1;
}

@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 48px;
        height: 48px;
        font-size: 20px;
    }
}