/* =========================================================
   ELEVATEMAX — hoja de estilos
   Paleta base enviada por el cliente + tokens derivados
   ========================================================= */
:root {
    --azul-pulse: #069EE1;
    --azul-deep: #033A56;
    --negro-titan: #000000;
    --blanco-pure: #FFFFFF;
    --negro-fondo: #0a0c10;
    --gris-carbon: #12151c;
    --gris-linea: #1e222c;
    --gris-texto: #9aa4b2;

    --font-display: 'Rajdhani', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--negro-fondo);
    color: var(--blanco-pure);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, .logo, .stat-num, .eyebrow {
    font-family: var(--font-display);
}

a { color: inherit; }

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}

/* ---------- Header & Navbar ---------- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 50px;
    background-color: rgba(10, 12, 16, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gris-linea);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.logo span { color: var(--azul-pulse); }

.navbar nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.navbar nav a {
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    transition: color 0.25s ease;
}

.navbar nav a:not(.btn-primary):hover { color: var(--azul-pulse); }

a:focus-visible, button:focus-visible {
    outline: 2px solid var(--azul-pulse);
    outline-offset: 3px;
}

/* ---------- Botones ---------- */
.btn-primary {
    background-color: var(--azul-pulse);
    color: var(--blanco-pure);
    padding: 12px 28px;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    display: inline-block;
    text-decoration: none;
    transition: background-color 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
}

.btn-primary:hover {
    background-color: #0582ba;
    box-shadow: 0 0 25px rgba(6, 158, 225, 0.55);
    transform: translateY(-2px);
}

.btn-ghost {
    color: var(--gris-texto);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 12px 8px;
    transition: color 0.25s ease;
}

.btn-ghost:hover { color: var(--blanco-pure); }

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 140px 20px 80px;
    background: radial-gradient(circle at 50% 35%, #0d1626 0%, var(--negro-titan) 70%);
    overflow: hidden;
}

.pulse-line {
    position: absolute;
    top: 46%;
    left: 0;
    width: 100%;
    height: 200px;
    opacity: 0.35;
    pointer-events: none;
}

.pulse-path {
    fill: none;
    stroke: var(--azul-pulse);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 1400;
    stroke-dashoffset: 1400;
    animation: draw-pulse 3.2s ease-out forwards, glow-pulse 2.5s ease-in-out 3.2s infinite;
}

@keyframes draw-pulse {
    to { stroke-dashoffset: 0; }
}

@keyframes glow-pulse {
    0%, 100% { filter: drop-shadow(0 0 2px rgba(6,158,225,0.4)); }
    50% { filter: drop-shadow(0 0 10px rgba(6,158,225,0.9)); }
}

.hero-content { position: relative; z-index: 2; }

.eyebrow {
    color: var(--azul-pulse);
    font-weight: 600;
    letter-spacing: 3px;
    font-size: 0.85rem;
    margin-bottom: 14px;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    letter-spacing: 4px;
    text-shadow: 0 0 30px rgba(6, 158, 225, 0.5);
}

.hero .subtitle {
    font-size: 1.4rem;
    color: var(--azul-pulse);
    font-weight: 600;
    margin: 10px 0 18px;
    letter-spacing: 2px;
}

.hero .description {
    max-width: 560px;
    margin: 0 auto 34px auto;
    color: var(--gris-texto);
    font-size: 1.05rem;
}

/* ---------- Stats strip ---------- */
.stats-strip {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 60px;
    padding: 46px 20px;
    background-color: var(--negro-titan);
    border-bottom: 1px solid var(--gris-linea);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-num {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--blanco-pure);
}

.stat-num small { font-size: 1.1rem; color: var(--azul-pulse); margin-left: 2px; }

.stat-label {
    color: var(--gris-texto);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

/* ---------- Beneficios ---------- */
.benefits {
    padding: 100px 20px;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.benefits h2, .about h2, .testimonials h2, .nutrition-text h2, .final-cta h2 {
    font-size: clamp(1.8rem, 4vw, 2.4rem);
    letter-spacing: 2px;
    margin-bottom: 50px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}

.benefit-card {
    background-color: var(--gris-carbon);
    border: 1px solid var(--gris-linea);
    border-radius: 8px;
    padding: 40px 28px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-6px);
    border-color: var(--azul-pulse);
}

.benefit-icon {
    width: 44px;
    height: 44px;
    margin-bottom: 20px;
    fill: none;
    stroke: var(--azul-pulse);
    stroke-width: 2.5;
}

.benefit-card h3 {
    font-size: 1.3rem;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.benefit-card p {
    color: var(--gris-texto);
    font-size: 0.95rem;
}

/* ---------- Producto ---------- */
.product {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: center;
    max-width: 1150px;
    margin: 0 auto;
    padding: 100px 20px;
}

.product-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 380px;
}

.can-glow {
    position: absolute;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(6,158,225,0.45) 0%, transparent 70%);
    filter: blur(10px);
    z-index: 0;
}

.can {
    position: relative;
    z-index: 1;
    width: 150px;
    height: 320px;
    border-radius: 22px;
    background: linear-gradient(160deg, #1b2230 0%, var(--negro-titan) 60%);
    border: 1px solid var(--gris-linea);
    box-shadow: 0 0 40px rgba(6,158,225,0.25), inset 0 0 30px rgba(6,158,225,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
}

.can-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.can-brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 1px;
}

.can-brand span { color: var(--azul-pulse); }

.can-tag {
    font-size: 0.65rem;
    letter-spacing: 2px;
    color: var(--gris-texto);
}

.product-copy h2 {
    font-size: clamp(1.8rem, 4vw, 2.3rem);
    letter-spacing: 1.5px;
    margin: 10px 0 20px;
}

.product-copy p {
    color: var(--gris-texto);
    margin-bottom: 20px;
}

.product-list {
    list-style: none;
    margin-bottom: 30px;
}

.product-list li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 10px;
    color: var(--blanco-pure);
    font-size: 0.95rem;
}

.product-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 10px;
    height: 2px;
    background-color: var(--azul-pulse);
}

/* ---------- Testimonios ---------- */
.testimonials {
    padding: 100px 20px;
    text-align: center;
    background-color: var(--negro-titan);
    border-top: 1px solid var(--gris-linea);
    border-bottom: 1px solid var(--gris-linea);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.testimonials blockquote {
    background-color: var(--gris-carbon);
    border-left: 3px solid var(--azul-pulse);
    border-radius: 6px;
    padding: 30px 26px;
    text-align: left;
}

.testimonials blockquote p {
    color: var(--blanco-pure);
    font-size: 0.98rem;
    margin-bottom: 16px;
}

.testimonials cite {
    color: var(--azul-pulse);
    font-style: normal;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ---------- Nutrición ---------- */
.nutrition {
    max-width: 900px;
    margin: 0 auto;
    padding: 100px 20px;
    text-align: center;
}

.nutrition-text p { color: var(--gris-texto); margin-bottom: 10px; }

.nutrition-table {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
    text-align: left;
}

.nutrition-table tr {
    border-bottom: 1px solid var(--gris-linea);
}

.nutrition-table th, .nutrition-table td {
    padding: 14px 10px;
    font-weight: 500;
}

.nutrition-table th { color: var(--blanco-pure); font-weight: 600; }
.nutrition-table td { color: var(--azul-pulse); text-align: right; font-weight: 600; }

.nutrition-note {
    margin-top: 16px;
    color: var(--gris-texto);
    font-size: 0.8rem;
}

/* ---------- About ---------- */
.about {
    padding: 90px 20px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about p { color: var(--gris-texto); }

/* ---------- CTA final ---------- */
.final-cta {
    text-align: center;
    padding: 110px 20px;
    background: radial-gradient(circle at 50% 40%, #0d1626 0%, var(--negro-titan) 75%);
    border-top: 1px solid var(--gris-linea);
}

.final-cta p {
    color: var(--gris-texto);
    margin-bottom: 30px;
}

/* ---------- Footer ---------- */
footer {
    padding: 40px 50px 24px;
    background-color: var(--negro-titan);
    border-top: 1px solid var(--gris-linea);
    text-align: center;
}

.footer-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    text-decoration: none;
    color: var(--gris-texto);
    font-size: 0.9rem;
    transition: color 0.25s ease;
}

.footer-links a:hover { color: var(--azul-pulse); }

footer p { color: #555c68; font-size: 0.85rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .product { grid-template-columns: 1fr; text-align: center; }
    .product-copy { order: 2; }
    .product-list { text-align: left; display: inline-block; }
}

@media (max-width: 640px) {
    .navbar { padding: 16px 20px; }
    .navbar nav { gap: 14px; }
    .navbar nav a:not(.btn-primary) { display: none; }
    .stats-strip { gap: 32px; }
}

.alert {
    max-width: 650px;
    margin: 20px auto;
    padding: 16px 20px;
    border-radius: 14px;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    animation: fadeIn 0.4s ease-in-out;
}

.alert-success {
    background: rgba(16, 185, 129, 0.18);
    border: 1px solid rgba(16, 185, 129, 0.45);
    color: #34d399;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}