/* Contexto */
.statement {
    background: var(--paper);
    padding: 7rem 0;
}
.statement .container { max-width: 62ch; text-align: center; margin: 0 auto; }
.statement h2 { margin: 1.1rem 0 1.8rem; }
.statement .body-lg { color: var(--text-on-light-soft); margin-bottom: 1.1rem; }
.statement .thesis {
    margin-top: 1.6rem;
    text-align: left;
    font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
    font-weight: 500;
    line-height: 1.5;
    color: var(--text-on-light);
    border-left: 2px solid var(--violet-700);
    padding-left: 1.25rem;
}

/* El TOS */
.tos {
    position: relative;
    background: var(--ink-900);
    color: var(--text-on-dark);
    padding: 7rem 0;
    overflow: hidden;
}
.section-grid-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(to right, var(--ink-grid) 1px, transparent 1px),
        linear-gradient(to bottom, var(--ink-grid) 1px, transparent 1px);
    background-size: 64px 64px;
    opacity: 0.06;
    -webkit-mask-image: radial-gradient(60% 60% at 50% 30%, #000, transparent 90%);
    mask-image: radial-gradient(60% 60% at 50% 30%, #000, transparent 90%);
}
.tos .container { position: relative; z-index: 1; }
.tos h2 { color: var(--text-on-dark); }
.tos h2 em { color: var(--violet-400); }
.tos .section-head p { color: var(--text-on-dark-soft); }
.tos-lockup {
    margin: 2.2rem auto 2.8rem;
    text-align: center;
}
.tos-lockup-acronym {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.4rem;
    margin-bottom: 1.1rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.42em;
    text-indent: 0.42em;
    color: var(--violet-400);
}
.tos-lockup-acronym i {
    display: block;
    width: clamp(48px, 8vw, 96px);
    height: 1px;
}
.tos-lockup-acronym i:first-child {
    background: linear-gradient(to left, var(--ink-line), transparent);
}
.tos-lockup-acronym i:last-child {
    background: linear-gradient(to right, var(--ink-line), transparent);
}
.tos-lockup-name {
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 3.4vw, 2.7rem);
    font-weight: 440;
    line-height: 1.15;
    letter-spacing: 0.01em;
    text-wrap: balance;
    color: var(--text-on-dark);
}
.tos-lockup-name em { color: var(--violet-400); }

.tos-lead {
    max-width: 92ch;
    margin: 0 auto 3rem;
    text-align: center;
    text-wrap: balance;
    color: var(--text-on-dark-soft);
}
.tos-lead-line { display: block; }
.tos-lead-line + .tos-lead-line { margin-top: 0.5rem; }

.tos-lead strong { color: var(--text-on-dark); font-weight: 600; }

.stack {
    max-width: 560px;
    margin: 0 auto 5rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}
.stack-layer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.4rem;
    background: var(--ink-800);
    border-radius: 14px;
}
.stack-layer .lt { display: inline-flex; align-items: center; gap: 0.6rem; font-weight: 500; color: var(--text-on-dark-soft); }
.stack-layer .lk { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-on-dark-faint); }
.stack-layer .glyph { width: 22px; height: 22px; color: var(--violet-400); }
.stack-layer.faint .lt { color: var(--text-on-dark-faint); }

.stack-layer.core {
    position: relative;
    display: block;
    padding: 1.25rem 1.4rem 1.35rem;
    background: #191530;
}
.core-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.1rem;
}
.core-head .lt { color: var(--text-on-dark); }
.core-head .lt b { font-family: var(--font-body); font-weight: 700; }
.core-modules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.core-module {
    padding: 0.7rem 0.85rem;
    background: #221d3b;
    border-radius: 9px;
    transition: background 200ms var(--ease);
}
.core-module:hover { background: #2a2449; }
.core-module .mn { display: block; font-weight: 600; font-size: 0.875rem; color: var(--text-on-dark); }
.core-module .mk {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-on-dark-faint);
}

.stack-rails {
    position: relative;
    display: flex;
    justify-content: center;
    gap: 84px;
    height: 46px;
}
.rail { position: relative; width: 1px; background: var(--ink-line); }
.rail-dot {
    position: absolute;
    left: -2px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
}
.rail-dot.down {
    background: var(--violet-400);
    box-shadow: 0 0 8px var(--violet-400);
    animation: rail-down 2.2s linear infinite;
}
.rail-dot.up {
    background: var(--spark);
    box-shadow: 0 0 8px var(--spark);
    animation: rail-up 2.6s linear infinite;
}
.rail-tag {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-on-dark-faint);
}
.rail-tag.tag-left { right: calc(50% + 64px); }
.rail-tag.tag-right { left: calc(50% + 64px); }
@keyframes rail-down {
    0% { top: -4px; opacity: 0; }
    16% { opacity: 1; }
    84% { opacity: 1; }
    100% { top: calc(100% - 1px); opacity: 0; }
}
@keyframes rail-up {
    0% { bottom: -4px; opacity: 0; }
    16% { opacity: 1; }
    84% { opacity: 1; }
    100% { bottom: calc(100% - 1px); opacity: 0; }
}
.rail-dot.up { top: auto; }
@media (prefers-reduced-motion: reduce) {
    .rail-dot { animation: none; opacity: 0; }
}

.tos-ledger {
    display: grid;
    grid-template-columns: minmax(240px, 0.8fr) 1.5fr;
    gap: 3.5rem;
    align-items: start;
    max-width: 1020px;
    margin: 0 auto 5rem;
}
.ledger-head h3 {
    margin-top: 1rem;
    font-weight: 500;
    color: var(--text-on-dark);
    max-width: 16ch;
}
.ledger-rows { border-top: 1px solid var(--ink-line); }
.ledger-row {
    display: grid;
    grid-template-columns: 3rem 9.5rem 1fr;
    gap: 1rem;
    align-items: baseline;
    padding: 1.05rem 0.6rem;
    border-bottom: 1px solid var(--ink-line);
    transition: background 200ms var(--ease);
}
.ledger-row:hover { background: rgba(91, 52, 214, 0.08); }
.ledger-row .ln { font-family: var(--font-mono); font-size: 0.75rem; color: var(--violet-400); }
.ledger-row .lt { font-weight: 600; font-size: 0.95rem; color: var(--text-on-dark); }
.ledger-row .ld { font-size: 0.95rem; color: var(--text-on-dark-soft); }

.tos-neg { max-width: 720px; margin: 0 auto; text-align: center; }
.tos-neg .no {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.7;
    color: var(--text-on-dark-faint);
    margin-bottom: 1.4rem;
}
.no-line { display: block; }
.tos-neg .yes {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.8vw, 2.25rem);
    font-weight: 480;
    line-height: 1.2;
    color: var(--text-on-dark);
}
.tos-neg .yes em { color: var(--violet-400); }

/* Casos de uso */
.usecases { background: var(--paper-2); padding: 7rem 0; }
.usecases h2 em { color: var(--violet-700); }
.uc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.uc {
    position: relative;
    background: var(--paper);
    border-radius: var(--r-card);
    padding: 32px;
    transition: transform 200ms var(--ease);
}
.uc-num {
    position: absolute;
    top: 24px;
    right: 28px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-on-light-faint);
}
.uc h3 { margin: 0.5rem 0 0.7rem; max-width: 22ch; }
.uc p { color: var(--text-on-light-soft); }
.uc-chips { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1.1rem; }
.uc-chips span {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-on-light-soft);
    padding: 0.35rem 0.7rem;
    background: var(--paper-2);
    border-radius: var(--pill);
}
.uc-arrow {
    position: absolute;
    bottom: 28px;
    right: 28px;
    color: var(--violet-700);
    opacity: 0;
    transform: translateX(-4px);
    transition: opacity 200ms var(--ease), transform 200ms var(--ease);
}
.uc-arrow svg { width: 20px; height: 20px; }
.uc:hover { transform: translateY(-2px); }
.uc:hover .uc-arrow { opacity: 1; transform: translateX(0); }

.uc-soon { background: var(--violet-tint); }
.uc-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.9rem;
    padding: 0.32rem 0.7rem;
    font-family: var(--font-mono);
    font-size: 0.64rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--violet-700);
    background: var(--paper);
    border-radius: var(--pill);
}
.uc-badge::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--violet-700);
}
.uc-soon h3 { color: var(--text-on-light); }
.uc-soon p { color: var(--text-on-light-faint); }
.uc-soon:hover { transform: none; }

/* Cierre */
.closing {
    background: var(--ink-900);
    color: var(--text-on-dark);
    padding: 7rem 0;
    text-align: center;
}
.closing .container { max-width: 720px; }
.closing-eyebrow { display: flex; justify-content: center; }
.closing-title { margin: 1.1rem 0 1.4rem; color: var(--text-on-dark); }
.closing .body-lg { color: var(--text-on-dark-soft); }
.closing-punch {
    margin: 2rem 0 2.4rem;
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 480;
    line-height: 1.2;
    color: var(--text-on-dark);
}
.closing-punch em { color: var(--violet-400); }
.timeline-compare {
    max-width: 640px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2.6rem;
    text-align: left;
}
.tc-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.9rem;
}
.tc-label {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    color: var(--text-on-dark-soft);
}
.tc-span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-on-dark-faint);
}
.tc-track-short .tc-span { color: var(--violet-400); }

.tc-milestones {
    position: relative;
    display: flex;
    justify-content: space-between;
    list-style: none;
    margin: 0;
    padding: 0;
}
.tc-milestones::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 0;
    height: 1px;
    width: 100%;
    background: var(--ink-line);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 900ms var(--ease-reveal);
}
.reveal.in .tc-milestones::before { transform: scaleX(1); }
.tc-track-short .tc-milestones { width: 24%; }
.tc-track-short .tc-milestones::before { background: var(--violet-400); }

.tc-milestone {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    flex: 0 0 auto;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 420ms var(--ease), transform 420ms var(--ease);
}
.reveal.in .tc-milestone { opacity: 1; transform: none; }
.tc-milestones .tc-milestone:nth-child(1) { transition-delay: 160ms; }
.tc-milestones .tc-milestone:nth-child(2) { transition-delay: 280ms; }
.tc-milestones .tc-milestone:nth-child(3) { transition-delay: 400ms; }
.tc-milestones .tc-milestone:nth-child(4) { transition-delay: 520ms; }
.tc-milestones .tc-milestone:nth-child(5) { transition-delay: 640ms; }
.tc-milestones .tc-milestone:nth-child(6) { transition-delay: 760ms; }

.tc-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--text-on-dark-faint);
}
.tc-track-short .tc-dot { background: var(--violet-400); }
.tc-name {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.04em;
    color: var(--text-on-dark-faint);
    white-space: nowrap;
}
.tc-track-short .tc-name { color: var(--text-on-dark-soft); }

@media (prefers-reduced-motion: reduce) {
    .tc-milestones::before { transform: scaleX(1); transition: none; }
    .tc-milestone { opacity: 1; transform: none; transition: none; }
}

.tc-count { display: none; color: var(--text-on-dark-faint); }

@media (max-width: 768px) {
    .timeline-compare { gap: 2rem; }
    .tc-milestones { flex-wrap: nowrap; }
    .tc-track-short .tc-milestones { width: 30%; }
    .tc-name { display: none; }
    .tc-count { display: inline; }
    .tc-label { font-size: 0.68rem; }
    .tc-span { font-size: 0.62rem; letter-spacing: 0.12em; }
}

/* Manifiesto */
.vision { background: var(--paper); padding: 7rem 0; }
.vision .container { max-width: 60ch; }
.folio {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    color: var(--text-on-light-faint);
    margin-bottom: 1.8rem;
}
.vision h2 { margin-bottom: 1.6rem; max-width: 20ch; }
.vision .body-lg { color: var(--text-on-light-soft); margin-bottom: 1.1rem; }
.vision .body-lg strong { color: var(--text-on-light); font-weight: 600; }
.epigraph {
    margin-top: 2.6rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--violet-700);
}
.epigraph blockquote {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.45rem, 2.5vw, 2rem);
    font-weight: 480;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--text-on-light);
}
.epigraph figcaption {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-top: 1rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-on-light-faint);
}
.epigraph figcaption::before {
    content: '';
    width: 26px;
    height: 1px;
    background: var(--violet-700);
}

/* CTA final */
.cta-final { background: var(--ink-900); padding: 7rem 0; }
.cta-card {
    position: relative;
    overflow: hidden;
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
    background: var(--ink-800);
    border-radius: var(--r-cta);
    padding: 4rem 3rem;
}
.cta-card > * { position: relative; z-index: 1; }

.contact-form {
    max-width: 560px;
    margin: 2.2rem auto 0;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.cf-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.cf-field { display: flex; flex-direction: column; gap: 0.45rem; }
.cf-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-on-dark-faint);
}
.cf-field input,
.cf-field textarea {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-on-dark);
    background: #1f1a38;
    border: none;
    border-radius: 10px;
    padding: 0.8rem 1rem;
    transition: background 200ms var(--ease);
    resize: vertical;
}
.cf-field input:focus,
.cf-field textarea:focus { background: #262045; outline: none; }
.cf-field input:focus-visible,
.cf-field textarea:focus-visible { outline: 2px solid var(--violet-400); outline-offset: 2px; }
.cf-field ::placeholder { color: var(--text-on-dark-faint); }
.cf-hp { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.contact-form .btn { justify-content: center; margin-top: 0.4rem; }
.contact-form .btn[disabled] { opacity: 0.6; cursor: default; transform: none; }
.cf-status { min-height: 1.4em; font-size: 0.9rem; color: var(--text-on-dark-soft); text-align: center; margin: 0; }
.cf-status.ok { color: var(--spark); }
.cf-status.error { color: #ff9d9d; }

@media (max-width: 600px) {
    .cf-grid { grid-template-columns: 1fr; }
    .cta-card { padding: 3rem 1.5rem; }
}
.cta-card .section-grid-bg { z-index: 0; }
.cta-card h2 { margin: 1.1rem 0 1rem; color: var(--text-on-dark); }
.cta-card p { color: var(--text-on-dark-soft); max-width: 48ch; margin: 0 auto 2rem; }

@media (max-width: 768px) {
    .statement, .tos, .usecases, .closing, .vision, .cta-final { padding: 4.5rem 0; }
    .core-modules { grid-template-columns: 1fr; }
    .rail-tag { display: none; }
    .tos-ledger { grid-template-columns: 1fr; gap: 2rem; }
    .ledger-head h3 { max-width: 100%; }
    .ledger-row { grid-template-columns: 2.6rem 1fr; row-gap: 0.3rem; }
    .ledger-row .ld { grid-column: 2; }
    .uc-grid { grid-template-columns: 1fr; }
    .uc { padding: 26px; }
    .cta-card { padding: 2.8rem 1.6rem; }
    .statement .container { text-align: left; }
}