/* ─── SYGNODE SHARED STYLES ─── */

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

/* ─── TOKENS ─── */
:root {
    --color-bg:       #EFE7D9;
    --color-bg-alt:   #E5DCC9;
    --color-fg:       #1F1B17;
    --color-fg-muted: #6E665B;
    --color-accent:   #C84A3F;

    --space-2xs:  4px;
    --space-xs:   8px;
    --space-sm:  16px;
    --space-md:  32px;
    --space-lg:  64px;
    --space-xl: 128px;
    --space-2xl:192px;

    --serif: 'Instrument Serif', Georgia, serif;
    --sans:  'Inter', system-ui, sans-serif;
}

/* ─── BASE ─── */
html {
    scroll-behavior: smooth;
    background: var(--color-bg);
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}

body {
    font-family: var(--sans);
    font-weight: 400;
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-fg);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── TYPOGRAPHY ─── */
h1 {
    font-family: var(--serif);
    font-size: 56px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-fg);
}

h2 {
    font-family: var(--serif);
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-fg);
}

h3 {
    font-family: var(--sans);
    font-size: 24px;
    font-weight: 500;
    line-height: 1.3;
    color: var(--color-fg);
}

p {
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-fg);
}

.lead {
    font-family: var(--sans);
    font-size: 22px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-fg-muted);
    max-width: 56ch;
}

.small,
small {
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-fg-muted);
}

/* display sizes */
.display-1 {
    font-family: var(--serif);
    font-size: 112px;
    font-weight: 400;
    line-height: 1.0;
    letter-spacing: -0.02em;
    color: var(--color-fg);
}

.display-2 {
    font-family: var(--serif);
    font-size: 72px;
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--color-fg);
}

/* label — keep for compatibility but minimal */
.label {
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-fg-muted);
    display: block;
    margin-bottom: var(--space-md);
}

/* ─── LAYOUT ─── */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding-inline: clamp(24px, 5vw, 96px);
}

/* ─── HEADER ─── */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid rgba(31, 27, 23, 0.15);
}

nav {
    max-width: 1280px;
    margin: 0 auto;
    padding-inline: clamp(24px, 5vw, 96px);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.12em;
    color: var(--color-fg);
    text-decoration: none;
    transition: opacity 150ms;
}

.logo:hover { opacity: 0.6; }

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

.nav-links a {
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 400;
    color: var(--color-fg-muted);
    text-decoration: none;
    transition: opacity 150ms;
}

.nav-links a:hover { opacity: 0.6; }

.nav-cta {
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-fg) !important;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: var(--color-fg);
    transition: opacity 150ms !important;
}

.nav-cta:hover {
    opacity: 0.6 !important;
}

/* ─── BUTTONS ─── */

/* Primary CTA — text + underline, no fill */
.btn-primary {
    display: inline-block;
    font-family: var(--sans);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-fg);
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: var(--color-fg);
    cursor: pointer;
    transition: opacity 150ms;
}

.btn-primary:hover { opacity: 0.6; }

/* Secondary / outline */
.btn-outline {
    display: inline-block;
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 400;
    color: var(--color-fg-muted);
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-color: var(--color-fg-muted);
    cursor: pointer;
    transition: opacity 150ms;
}

.btn-outline:hover { opacity: 0.6; }

.cta-group {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    flex-wrap: wrap;
}

/* ─── FORMS ─── */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
}

.form-label {
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-fg-muted);
}

.form-input,
.form-select,
.form-textarea {
    font-family: var(--sans);
    font-size: 18px;
    font-weight: 400;
    color: var(--color-fg);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-fg-muted);
    border-radius: 0;
    padding: var(--space-sm) 0;
    outline: none;
    width: 100%;
    -webkit-appearance: none;
    transition: border-color 150ms;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-bottom-color: var(--color-fg);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-fg-muted);
    opacity: 0.6;
}

.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E665B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0 center;
    padding-right: var(--space-md);
}

.form-textarea {
    resize: vertical;
    min-height: 140px;
    line-height: 1.6;
}

/* ─── PROBLEM BLOCK (3-column diagnosis grid) ─── */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 1px solid rgba(31, 27, 23, 0.15);
    border-left: 1px solid rgba(31, 27, 23, 0.15);
    margin-top: var(--space-lg);
}

.problem-col {
    padding: var(--space-lg) var(--space-md);
    border-right: 1px solid rgba(31, 27, 23, 0.15);
    border-bottom: 1px solid rgba(31, 27, 23, 0.15);
}

.problem-col-label {
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-fg-muted);
    display: block;
    margin-bottom: var(--space-md);
}

.problem-col p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-fg);
    max-width: 68ch;
}

/* ─── SCOPE LIST ─── */
.scope-list {
    border-top: 1px solid rgba(31, 27, 23, 0.15);
}

.scope-item {
    display: grid;
    grid-template-columns: 48px 1fr 2fr;
    gap: var(--space-lg);
    align-items: start;
    padding: var(--space-md) 0;
    border-bottom: 1px solid rgba(31, 27, 23, 0.15);
}

.scope-num {
    font-family: var(--serif);
    font-size: 22px;
    color: var(--color-fg-muted);
    font-weight: 400;
    padding-top: 2px;
}

.scope-item h3 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 0;
    padding-top: 4px;
}

.scope-item p {
    font-size: 18px;
    color: var(--color-fg);
    max-width: 100%;
}

/* ─── EXCLUSION NOTE ─── */
.exclusion-note {
    border: 1px solid rgba(31, 27, 23, 0.15);
    padding: var(--space-lg) var(--space-lg);
    background: var(--color-bg-alt);
}

.exclusion-note p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--color-fg);
    max-width: 68ch;
}

/* ─── LEAD MAGNET PLACEHOLDER ─── */
.lead-magnet-block {
    border: 1px solid rgba(31, 27, 23, 0.15);
    padding: var(--space-lg);
    background: var(--color-bg-alt);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 640px;
}

.lead-magnet-block h3 {
    font-family: var(--serif);
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--color-fg);
}

.lead-magnet-block p {
    font-size: 18px;
    color: var(--color-fg-muted);
    max-width: 100%;
}

/* ─── OPERATOR DIVIDER (hidrogeno) ─── */
.operator-divider {
    border: none;
    border-top: 1px solid rgba(31, 27, 23, 0.15);
    margin: var(--space-2xl) 0 0;
}

/* ─── FINAL CTA ─── */
.final-cta-section {
    background: var(--color-fg);
    padding: var(--space-2xl) clamp(24px, 5vw, 96px);
    text-align: center;
}

.final-cta-section .label {
    color: rgba(239, 231, 217, 0.45);
}

.final-cta-section h2 {
    color: var(--color-bg);
    margin-bottom: var(--space-md);
}

.final-cta-section .lead {
    color: rgba(239, 231, 217, 0.7);
    margin: 0 auto var(--space-lg);
}

.final-cta-section .btn-primary {
    color: var(--color-bg);
    text-decoration-color: var(--color-bg);
}

/* ─── FAQ SECTION ─── */
.faq-section {
    padding: var(--space-2xl) clamp(24px, 5vw, 96px);
    max-width: 1280px;
    margin: 0 auto;
    border-top: 1px solid rgba(31, 27, 23, 0.15);
}

.faq-section .eyebrow {
    margin-bottom: var(--space-lg);
}

.faq-list {
    border-top: 1px solid rgba(31, 27, 23, 0.15);
}

.faq-item {
    border-bottom: 1px solid rgba(31, 27, 23, 0.15);
}

.faq-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--serif);
    font-size: clamp(18px, 2vw, 22px);
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: -0.01em;
    color: var(--color-fg);
    transition: opacity 150ms;
}

.faq-trigger:hover { opacity: 0.6; }

.faq-icon {
    flex-shrink: 0;
    font-size: 20px;
    font-weight: 300;
    color: var(--color-fg-muted);
    transition: transform 250ms cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
    line-height: 1;
}

.faq-item[open] .faq-icon,
.faq-item.is-open .faq-icon {
    transform: rotate(45deg);
}

.faq-body {
    padding: 0 0 var(--space-lg) 0;
    max-width: 72ch;
}

.faq-body p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-fg-muted);
}

.faq-body p + p { margin-top: var(--space-md); }

.faq-body strong {
    color: var(--color-fg);
    font-weight: 500;
}

/* animate open/close */
details.faq-item summary { list-style: none; }
details.faq-item summary::-webkit-details-marker { display: none; }

@media (max-width: 767px) {
    .faq-trigger { font-size: 17px; }
}

/* ─── FOOTER ─── */
footer {
    background: var(--color-bg);
    border-top: 1px solid rgba(31, 27, 23, 0.15);
    padding: var(--space-md) clamp(24px, 5vw, 96px);
}

.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-brand {
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 400;
    color: var(--color-fg-muted);
}

.footer-links {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    align-items: center;
}

.footer-links a {
    font-size: 15px;
    color: var(--color-fg-muted);
    text-decoration: none;
    transition: opacity 150ms;
}

.footer-links a:hover { opacity: 0.6; }

/* ─── FADE-UP ANIMATION ─── */
.fade-up {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
                transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .fade-up {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ─── KEN BURNS (hero images on verticals) ─── */
@keyframes kenburns {
    0%   { transform: scale(1.0); }
    50%  { transform: scale(1.05); }
    100% { transform: scale(1.0); }
}

.hero-image-kb {
    animation: kenburns 40s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
    .hero-image-kb { animation: none; }
}

/* ─── VERTICAL HERO (subpages with image) ─── */

/* Outer container: height auto so text never clips */
.vertical-hero {
    position: relative;
    width: 100%;
    min-height: 100svh;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
}

/* Parallax wrapper: absolutely fills the entire hero at all heights */
.parallax-wrapper {
    position: absolute;
    top: -15%;
    left: 0;
    width: 100%;
    height: 130%;
    min-height: 100svh;
    /* will-change added/removed by JS when listener is active */
}

/* Ken Burns wrapper: nested inside parallax-wrapper */
.ken-burns-wrapper {
    width: 100%;
    height: 100%;
}

.ken-burns-wrapper img,
.ken-burns-wrapper picture {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Hero text: sits above the image */
.vertical-hero-text {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: calc(64px + var(--space-xl)) clamp(24px, 5vw, 96px) var(--space-xl);
}

.vertical-hero-text h1 {
    color: var(--color-bg);
    max-width: 720px;
}

.vertical-hero-text .lead {
    color: rgba(239, 231, 217, 0.8);
    margin-top: var(--space-sm);
}

/* Hero image placeholder (solid color until real photos are added) */
.hero-placeholder {
    background: var(--color-fg-muted);
    width: 100%;
    height: 100%;
}

@media (prefers-reduced-motion: reduce) {
    .parallax-wrapper {
        top: 0;
        height: 100%;
    }
}

/* ─── FULL-BLEED SECTIONS ─── */
.full-bleed {
    background: var(--color-bg-alt);
    border-top: 1px solid rgba(31, 27, 23, 0.15);
    border-bottom: 1px solid rgba(31, 27, 23, 0.15);
}

.full-bleed > .container {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
}

/* ─── PAGE SECTION ─── */
.page-section {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    padding-inline: clamp(24px, 5vw, 96px);
    max-width: 1280px;
    margin: 0 auto;
}

/* ─── EYEBROW ─── */
.eyebrow {
    font-family: var(--sans);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-fg-muted);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.eyebrow .dash {
    display: inline-block;
    width: 24px;
    height: 1px;
    background: var(--color-fg-muted);
    flex-shrink: 0;
}

/* ─── CALLOUTS ─── */
.callout-light {
    background: var(--color-bg-alt);
    border: 1px solid color-mix(in srgb, var(--color-fg) 10%, transparent);
    padding: 24px 28px;
    margin: var(--space-md) 0;
    font-size: 17px;
    line-height: 1.65;
    color: var(--color-fg);
}

.callout-light p,
.callout-light li {
    color: var(--color-fg);
    font-size: 17px;
    line-height: 1.65;
}

.callout-dark {
    background: var(--color-fg);
    color: var(--color-bg);
    padding: 32px 36px;
    margin: var(--space-lg) 0;
    font-size: 18px;
    line-height: 1.65;
}

.callout-dark p,
.callout-dark li,
.callout-dark p *,
.callout-dark li * {
    color: var(--color-bg) !important;
    font-size: 18px;
    line-height: 1.65;
}

.callout-dark em {
    font-family: var(--serif);
    font-style: italic;
    font-size: 1.15em;
}

.callout-alert {
    border-left: 3px solid var(--color-accent);
    background: color-mix(in srgb, var(--color-accent) 6%, var(--color-bg));
    padding: 20px 24px 20px 28px;
    margin: var(--space-md) 0;
    font-size: 17px;
    line-height: 1.65;
    color: var(--color-fg);
}

.callout-alert p,
.callout-alert li {
    color: var(--color-fg);
    font-size: 17px;
    line-height: 1.65;
}

.callout-alert strong {
    color: var(--color-accent);
}

/* ─── BADGES ─── */
.badge {
    display: inline-block;
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 2px;
}

.badge-primary {
    background: var(--color-fg);
    color: var(--color-bg);
}

.badge-secondary {
    background: var(--color-bg-alt);
    color: var(--color-fg);
    border: 1px solid color-mix(in srgb, var(--color-fg) 20%, transparent);
}

.badge-accent {
    background: color-mix(in srgb, var(--color-accent) 10%, var(--color-bg));
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
}

/* ─── ACCENT CTA (final CTAs on verticals only) ─── */
.btn-accent {
    display: inline-block;
    font-family: var(--sans);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-fg);
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: var(--color-accent);
    cursor: pointer;
    transition: opacity 150ms;
}

.btn-accent:hover { opacity: 0.6; }

/* ─── ACCENT on "Lo que no hacemos" border ─── */
.exclusion-note {
    border-left: 3px solid var(--color-accent);
}

/* ─── DOT — logo accent in footer/nav ─── */
.accent-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    vertical-align: middle;
    margin-right: 6px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1023px) {
    /* tablet — 80% type scale */
    h1 { font-size: 45px; }
    h2 { font-size: 29px; }
    h3 { font-size: 20px; }
    .lead { font-size: 18px; }
    .display-1 { font-size: 56px; }
    .display-2 { font-size: 40px; }

    .problem-grid { grid-template-columns: 1fr 1fr; }
    .problem-col:nth-child(3) { grid-column: 1 / -1; }

    .scope-item {
        grid-template-columns: 36px 1fr;
        gap: var(--space-sm);
    }
    .scope-item p { grid-column: 2; }

    .full-bleed > .container {
        padding-top: var(--space-xl);
        padding-bottom: var(--space-xl);
    }

    .page-section {
        padding-top: var(--space-xl);
        padding-bottom: var(--space-xl);
    }

    .final-cta-section {
        padding-top: var(--space-xl);
        padding-bottom: var(--space-xl);
    }
}

@media (max-width: 767px) {
    /* mobile — spec scale */
    h1 { font-size: 36px; }
    h2 { font-size: 28px; }
    h3 { font-size: 21px; }
    .lead { font-size: 19px; }
    p { font-size: 17px; }
    .small, small { font-size: 14px; }
    .display-1 { font-size: 56px; }
    .display-2 { font-size: 40px; }

    .nav-links { display: none; }

    .problem-grid { grid-template-columns: 1fr; }
    .problem-col:nth-child(3) { grid-column: auto; }

    .scope-item {
        grid-template-columns: 32px 1fr;
        gap: var(--space-sm);
    }

    .vertical-hero-text {
        padding-top: calc(64px + var(--space-lg));
        padding-bottom: var(--space-lg);
    }

    .full-bleed > .container {
        padding-top: var(--space-lg);
        padding-bottom: var(--space-lg);
    }

    .page-section {
        padding-top: var(--space-lg);
        padding-bottom: var(--space-lg);
    }

    .final-cta-section {
        padding-top: var(--space-lg);
        padding-bottom: var(--space-lg);
    }

    .exclusion-note {
        padding: var(--space-md);
    }

    .lead-magnet-block {
        padding: var(--space-md);
    }

    .footer-inner { flex-direction: column; align-items: flex-start; }
}