/* Transfer11 — Black Ring Business v2
   Verde #008151 + blanco · escala enterprise pesada */

:root {
    --negro: #ffffff;
    --negro-suave: #f4faf6;
    --negro-card: #ffffff;
    --oro: #008151;
    --oro-brillante: #00a368;
    --oro-tenue: #005a38;
    --oro-ultra: #003d26;
    --blanco: #0a2e1c;
    --gris: #2f5944;
    --gris-claro: #c0dcca;
    --gris-ultra: #e4f0e8;
    --rojo: #c94a4a;
    --verde: #00a368;
    --serif: 'Playfair Display', Georgia, serif;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --sombra-sm: 0 4px 12px rgba(0,129,81,0.08);
    --sombra-md: 0 12px 32px rgba(0,129,81,0.14);
    --sombra-lg: 0 28px 70px rgba(0,129,81,0.18);
    --sombra-xl: 0 50px 120px rgba(0,129,81,0.22);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
*::selection { background: rgba(0,129,81,0.22); color: var(--oro-ultra); }

html { scroll-behavior: smooth; }

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

h1, h2, h3, h4 {
    font-family: var(--serif);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.05;
    color: var(--blanco);
}

.container { max-width: 1320px; margin: 0 auto; padding: 0 48px; }
.container-narrow { max-width: 1000px; margin: 0 auto; padding: 0 48px; }

/* ==================== NAV ==================== */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 28px 0;
    background: rgba(255,255,255,0.90);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(0,129,81,0.10);
}
nav .nav-inner {
    display: flex; justify-content: space-between; align-items: center;
    max-width: 1320px; margin: 0 auto; padding: 0 48px;
}
nav .logo {
    font-family: var(--serif);
    font-size: 32px;
    color: var(--oro);
    letter-spacing: -0.01em;
    font-weight: 800;
}
nav .logo span { color: var(--blanco); }
nav .nav-links { display: flex; gap: 44px; align-items: center; }
nav .nav-links a {
    color: var(--blanco);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: color 0.2s;
}
nav .nav-links a:hover { color: var(--oro); }
nav .btn-nav {
    padding: 14px 32px;
    border: 2px solid var(--oro);
    border-radius: 10px;
    color: var(--oro) !important;
    font-weight: 700;
    transition: all 0.25s;
    font-size: 15px;
}
nav .btn-nav:hover {
    background: var(--oro);
    color: #ffffff !important;
    box-shadow: 0 10px 24px rgba(0,129,81,0.32);
    transform: translateY(-2px);
}

/* ==================== HERO ==================== */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 200px 0 140px;
    background:
        radial-gradient(ellipse 80% 50% at 85% 15%, rgba(0,129,81,0.18) 0%, transparent 55%),
        radial-gradient(ellipse 70% 50% at 10% 90%, rgba(0,163,104,0.10) 0%, transparent 55%),
        linear-gradient(180deg, #ffffff 0%, #f4faf6 100%);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0,129,81,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,129,81,0.04) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    pointer-events: none;
}
.hero-content { position: relative; z-index: 2; }
.hero .kicker {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 12px 26px;
    border: 1.5px solid var(--oro-tenue);
    border-radius: 100px;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--oro);
    margin-bottom: 48px;
    background: rgba(0,129,81,0.06);
    font-weight: 700;
    backdrop-filter: blur(8px);
}
.hero .kicker::before {
    content: '';
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--oro);
    box-shadow: 0 0 0 4px rgba(0,129,81,0.20);
    animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
    0%,100% { box-shadow: 0 0 0 4px rgba(0,129,81,0.20); }
    50%     { box-shadow: 0 0 0 9px rgba(0,129,81,0.05); }
}
.hero h1 {
    font-size: clamp(62px, 9vw, 132px);
    font-weight: 900;
    margin-bottom: 40px;
    max-width: 1200px;
    letter-spacing: -0.04em;
    line-height: 0.98;
}
.hero h1 em {
    font-style: italic;
    color: var(--oro);
    font-weight: 900;
    background: linear-gradient(135deg, #008151 0%, #00a368 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero .subtitle {
    font-size: 24px;
    color: var(--gris);
    max-width: 820px;
    margin-bottom: 64px;
    font-weight: 500;
    line-height: 1.5;
}
.hero .cta-row { display: flex; gap: 20px; flex-wrap: wrap; }

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex; align-items: center; gap: 12px;
    padding: 24px 48px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 18px;
    font-weight: 700;
    transition: all 0.28s cubic-bezier(0.4,0,0.2,1);
    cursor: pointer;
    border: none;
    font-family: var(--sans);
    letter-spacing: -0.005em;
}
.btn-primary {
    background: linear-gradient(135deg, #008151 0%, #00a368 100%);
    color: #ffffff;
    box-shadow: 0 14px 36px rgba(0,129,81,0.32), inset 0 1px 0 rgba(255,255,255,0.18);
}
.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 48px rgba(0,129,81,0.42), inset 0 1px 0 rgba(255,255,255,0.22);
}
.btn-ghost {
    background: #ffffff;
    color: var(--blanco);
    border: 2px solid var(--gris-claro);
    box-shadow: var(--sombra-sm);
}
.btn-ghost:hover {
    border-color: var(--oro);
    color: var(--oro);
    transform: translateY(-4px);
    box-shadow: var(--sombra-md);
}

/* ==================== PROMESA (ITE) ==================== */
.promesa {
    padding: 180px 0;
    background: var(--negro-suave);
    border-top: 1px solid rgba(0,129,81,0.10);
    border-bottom: 1px solid rgba(0,129,81,0.10);
    position: relative;
}
.promesa-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 120px;
    align-items: center;
}
.promesa h2 {
    font-size: 80px;
    font-weight: 900;
    margin-bottom: 40px;
    letter-spacing: -0.035em;
    line-height: 1.02;
}
.promesa h2 em {
    color: var(--oro);
    font-style: italic;
    background: linear-gradient(135deg, #008151 0%, #00a368 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.promesa p { color: var(--gris); font-size: 19px; margin-bottom: 20px; line-height: 1.65; font-weight: 500; }
.ite-card {
    background: linear-gradient(145deg, #ffffff 0%, #eaf5ee 100%);
    border: 1.5px solid rgba(0,129,81,0.22);
    padding: 88px 64px;
    border-radius: 28px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--sombra-xl);
}
.ite-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 5px;
    background: linear-gradient(90deg, transparent, var(--oro), var(--oro-brillante), var(--oro), transparent);
}
.ite-card::after {
    content: '';
    position: absolute;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,129,81,0.10) 0%, transparent 70%);
    top: -180px; right: -180px;
    pointer-events: none;
}
.ite-card .ite-label {
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-size: 13px;
    color: var(--oro);
    margin-bottom: 28px;
    font-weight: 800;
    position: relative; z-index: 1;
}
.ite-card .ite-number {
    font-family: var(--serif);
    font-size: 220px;
    font-weight: 900;
    color: var(--blanco);
    line-height: 0.92;
    letter-spacing: -0.05em;
    position: relative; z-index: 1;
    background: linear-gradient(135deg, #0a2e1c 0%, #008151 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.ite-card .ite-number sup { font-size: 78px; color: var(--oro); -webkit-text-fill-color: var(--oro); }
.ite-card .ite-desc {
    color: var(--gris);
    font-size: 16px;
    margin-top: 28px;
    font-style: italic;
    position: relative; z-index: 1;
    max-width: 340px; margin-left: auto; margin-right: auto;
    line-height: 1.55;
    font-weight: 500;
}

/* ==================== FASES ==================== */
.fases { padding: 200px 0; }
.section-title {
    text-align: center;
    margin-bottom: 120px;
}
.section-title .kicker {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--oro);
    margin-bottom: 24px;
    font-weight: 800;
    padding: 10px 22px;
    background: rgba(0,129,81,0.09);
    border-radius: 100px;
}
.section-title h2 {
    font-size: 92px;
    font-weight: 900;
    max-width: 1000px;
    margin: 0 auto;
    letter-spacing: -0.035em;
    line-height: 1.02;
}
.section-title h2 em {
    color: var(--oro);
    font-style: italic;
    background: linear-gradient(135deg, #008151 0%, #00a368 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.fases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.fase-card {
    background: var(--negro-card);
    border: 1.5px solid var(--gris-claro);
    padding: 56px 40px;
    border-radius: 22px;
    transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
    position: relative;
    box-shadow: var(--sombra-sm);
    overflow: hidden;
}
.fase-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--oro), var(--oro-brillante));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}
.fase-card:hover {
    border-color: var(--oro);
    transform: translateY(-10px);
    box-shadow: var(--sombra-lg);
}
.fase-card:hover::before { transform: scaleX(1); }
.fase-card .numero {
    font-family: var(--serif);
    font-size: 15px;
    color: var(--oro);
    letter-spacing: 0.35em;
    margin-bottom: 28px;
    font-weight: 800;
}
.fase-card h3 {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 24px;
    color: var(--blanco);
    letter-spacing: -0.025em;
    line-height: 1.05;
}
.fase-card p {
    color: var(--gris);
    font-size: 16px;
    margin-bottom: 28px;
    line-height: 1.6;
    font-weight: 500;
}
.fase-card ul { list-style: none; padding: 0; }
.fase-card ul li {
    color: var(--blanco);
    font-size: 15px;
    padding: 12px 0;
    border-top: 1px solid var(--gris-claro);
    position: relative;
    padding-left: 26px;
    font-weight: 600;
}
.fase-card ul li::before {
    content: '→';
    color: var(--oro);
    position: absolute;
    left: 0;
    font-weight: 900;
}

/* ==================== KIRKPATRICK ==================== */
.kirkpatrick {
    padding: 200px 0;
    background: var(--negro-suave);
    position: relative;
}
.nivel-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 80px;
}
.nivel-card {
    padding: 52px 36px;
    background: #ffffff;
    border: 1.5px solid var(--gris-claro);
    border-top: 5px solid var(--oro);
    border-radius: 18px;
    box-shadow: var(--sombra-sm);
    transition: all 0.3s;
}
.nivel-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sombra-md);
    border-top-color: var(--oro-brillante);
}
.nivel-card .nivel-num {
    font-family: var(--serif);
    font-size: 92px;
    font-weight: 900;
    color: var(--oro);
    line-height: 1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #008151 0%, #00a368 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.04em;
}
.nivel-card h4 {
    font-size: 28px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.015em;
}
.nivel-card p { color: var(--gris); font-size: 15px; line-height: 1.6; font-weight: 500; }

/* ==================== DIFERENCIADOR ==================== */
.diferenciador {
    padding: 200px 0;
    text-align: center;
    position: relative;
    background:
        radial-gradient(ellipse at center, rgba(0,129,81,0.08) 0%, transparent 60%);
}
.diferenciador blockquote {
    font-family: var(--serif);
    font-size: 64px;
    font-weight: 800;
    line-height: 1.22;
    max-width: 1100px;
    margin: 0 auto 48px;
    font-style: italic;
    letter-spacing: -0.02em;
    color: var(--blanco);
}
.diferenciador blockquote em { color: var(--oro); font-weight: 900; }
.diferenciador cite {
    color: var(--gris);
    font-size: 15px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    font-style: normal;
    font-weight: 700;
}

/* ==================== CTA FINAL ==================== */
.cta-final {
    padding: 220px 0;
    background:
        radial-gradient(ellipse 60% 80% at center, rgba(0,129,81,0.18) 0%, transparent 65%),
        linear-gradient(180deg, #ffffff 0%, #f4faf6 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-final::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0,129,81,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,129,81,0.04) 1px, transparent 1px);
    background-size: 68px 68px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    pointer-events: none;
}
.cta-final > * { position: relative; z-index: 1; }
.cta-final h2 {
    font-size: 104px;
    font-weight: 900;
    margin-bottom: 40px;
    letter-spacing: -0.04em;
    line-height: 1;
}
.cta-final h2 em {
    color: var(--oro);
    font-style: italic;
    background: linear-gradient(135deg, #008151 0%, #00a368 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.cta-final p {
    color: var(--gris);
    font-size: 22px;
    max-width: 740px;
    margin: 0 auto 64px;
    line-height: 1.6;
    font-weight: 500;
}
.cta-final .btn { font-size: 20px; padding: 28px 56px; }

/* ==================== FOOTER ==================== */
footer {
    padding: 72px 0;
    border-top: 1px solid var(--gris-claro);
    text-align: center;
    color: var(--gris);
    font-size: 15px;
    background: var(--negro-suave);
    font-weight: 500;
}
footer .logo-small {
    font-family: var(--serif);
    color: var(--oro);
    letter-spacing: 0.12em;
    margin-bottom: 14px;
    font-size: 24px;
    font-weight: 900;
}

/* ==================== APP / DEMO PAGES ==================== */
.app-container {
    min-height: 100vh;
    padding: 160px 0 100px;
    background: linear-gradient(180deg, #ffffff 0%, #f4faf6 100%);
}
.app-header {
    margin-bottom: 72px;
    padding-bottom: 48px;
    border-bottom: 1.5px solid var(--gris-claro);
}
.app-header h1 {
    font-size: 68px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
    line-height: 1.05;
}
.app-header p { color: var(--gris); font-size: 20px; font-weight: 500; }

.card {
    background: var(--negro-card);
    border: 1.5px solid var(--gris-claro);
    border-radius: 20px;
    padding: 56px;
    margin-bottom: 32px;
    box-shadow: var(--sombra-sm);
    transition: box-shadow 0.3s;
}
.card:hover { box-shadow: var(--sombra-md); }

.form-group { margin-bottom: 32px; }
.form-group label {
    display: block;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--oro);
    margin-bottom: 12px;
    font-weight: 800;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 18px 22px;
    background: #ffffff;
    border: 2px solid var(--gris-claro);
    border-radius: 12px;
    color: var(--blanco);
    font-family: var(--sans);
    font-size: 17px;
    font-weight: 500;
    transition: all 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--oro);
    box-shadow: 0 0 0 5px rgba(0,129,81,0.14);
}
.form-group textarea { min-height: 160px; resize: vertical; }

.upload-zone {
    border: 2.5px dashed var(--gris-claro);
    border-radius: 16px;
    padding: 88px 48px;
    text-align: center;
    transition: all 0.25s;
    cursor: pointer;
    background: var(--gris-ultra);
}
.upload-zone:hover, .upload-zone.drag {
    border-color: var(--oro);
    background: rgba(0,129,81,0.06);
    transform: translateY(-3px);
}
.upload-zone .icon { font-size: 64px; color: var(--oro); margin-bottom: 24px; }
.upload-zone p { color: var(--gris); font-size: 16px; font-weight: 500; }

.badge {
    display: inline-block;
    padding: 7px 16px;
    border-radius: 100px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    background: rgba(0,129,81,0.14);
    color: var(--oro);
    font-weight: 800;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 16px;
}
table th {
    text-align: left;
    padding: 22px 24px;
    background: var(--gris-ultra);
    color: var(--oro);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    border-bottom: 2px solid var(--oro-tenue);
    font-weight: 800;
}
table td {
    padding: 22px 24px;
    border-bottom: 1px solid var(--gris-claro);
    color: var(--blanco);
    font-weight: 500;
}
table tbody tr { transition: background 0.15s; }
table tbody tr:hover { background: rgba(0,129,81,0.05); }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1200px) {
    .hero h1 { font-size: 84px; }
    .promesa h2 { font-size: 64px; }
    .section-title h2 { font-size: 72px; }
    .cta-final h2 { font-size: 80px; }
    .ite-card .ite-number { font-size: 180px; }
}
@media (max-width: 1100px) {
    .fases-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .nivel-grid { grid-template-columns: 1fr 1fr; }
    .promesa-grid { gap: 80px; }
}
@media (max-width: 900px) {
    nav .nav-links a:not(.btn-nav) { display: none; }
    .container, .container-narrow { padding: 0 24px; }
    .promesa-grid { grid-template-columns: 1fr; gap: 56px; }
    .hero h1 { font-size: 56px; }
    .hero .subtitle { font-size: 19px; }
    .diferenciador blockquote { font-size: 36px; }
    .ite-card { padding: 56px 32px; }
    .ite-card .ite-number { font-size: 140px; }
    .ite-card .ite-number sup { font-size: 50px; }
    .promesa h2 { font-size: 48px; }
    .section-title h2 { font-size: 52px; }
    .cta-final h2 { font-size: 56px; }
    .hero, .promesa, .fases, .kirkpatrick, .diferenciador, .cta-final { padding: 120px 0; }
    .app-container { padding: 130px 0 80px; }
    .card { padding: 32px; }
    .fase-card { padding: 40px 30px; }
    .fase-card h3 { font-size: 30px; }
    .app-header h1 { font-size: 44px; }
}
@media (max-width: 600px) {
    .fases-grid, .nivel-grid { grid-template-columns: 1fr; }
    .btn { padding: 18px 32px; font-size: 16px; }
    .cta-row { flex-direction: column; }
    .cta-row .btn { width: 100%; justify-content: center; }
    .app-header h1 { font-size: 36px; }
    .hero h1 { font-size: 44px; }
}