/* ============================================
   CSS VARIABLES (Paleta de colores)
   ============================================ */
:root {
    --color-primary: rgb(75, 124, 226);
    --color-primary-dark: rgb(41, 69, 178);
    --color-primary-darker: rgb(20, 48, 98);
    --color-primary-light: rgb(111, 163, 210);
    
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

/* ============================================
   RESET Y BASE
   ============================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-gray-800);
    background: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    line-height: 1.4;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn--primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(75, 124, 226, 0.35);
}

.btn--secondary {
    background: transparent;
    color: var(--color-gray-700);
    border: 2px solid var(--color-gray-300);
}

.btn--secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn--outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn--large {
    padding: 14px 32px;
    font-size: 1rem;
}

/* ============================================
   SECTION TAGS
   ============================================ */
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    background: rgba(75, 124, 226, 0.1);
    padding: 4px 16px;
    border-radius: 100px;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-primary-darker);
}

.section-title br {
    display: block;
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 12px 0;
    transition: all 0.3s ease;
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ============================================
   LOGO CON SUBTÍTULO
   ============================================ */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo__icon {
    flex-shrink: 0;
}

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

.logo__text {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-primary-darker);
}

.logo__text span {
    color: var(--color-primary);
}

.logo__subtitle {
    font-size: 0.55rem;
    font-weight: 500;
    color: var(--color-gray-600);
    letter-spacing: 0.01em;
    text-transform: uppercase;
    margin-top: 1px;
}

/* ============================================
   NAVEGACIÓN
   ============================================ */
.nav__list {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav__list a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color 0.2s ease;
}

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

.header__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--color-primary-darker);
    border-radius: 4px;
    transition: all 0.3s ease;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(165deg, var(--color-primary-darker) 0%, var(--color-primary-dark) 60%, var(--color-primary) 100%);
    position: relative;
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-white);
    margin-bottom: 16px;
}

.hero__title span {
    color: var(--color-primary-light);
}

.hero__subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 480px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero__cta {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin-bottom: 16px;
}

.hero__legal {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

.hero__image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__wave {
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 80px;
    background: var(--color-white);
    clip-path: ellipse(70% 100% at 50% 100%);
    z-index: 1;
}

/* ============================================
   PROPUESTA DE VALOR
   ============================================ */
.value {
    padding: 80px 0;
    background: var(--color-gray-50);
}

.value__header {
    text-align: center;
    margin-bottom: 60px;
}

.value__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.value__item {
    text-align: center;
    padding: 32px 24px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.value__item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.value__icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.value__item h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary-darker);
    margin-bottom: 8px;
}

.value__item p {
    color: var(--color-gray-500);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   PLANES
   ============================================ */
.plans {
    padding: 80px 0;
    background: var(--color-white);
}

.plans__header {
    text-align: center;
    margin-bottom: 60px;
}

.plans__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.plan {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.plan:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.plan--pro {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.plan--pro:hover {
    box-shadow: var(--shadow-2xl);
}

.plan__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 20px;
    border-radius: 100px;
}

.plan__header {
    margin-bottom: 24px;
}

.plan__header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-darker);
    margin-bottom: 4px;
}

.plan__price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary-darker);
}

.plan__price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-gray-400);
}

.plan__sub {
    color: var(--color-gray-500);
    font-size: 0.875rem;
    margin-top: 4px;
}

.plan__features {
    text-align: left;
    margin: 24px 0 32px;
    padding: 0;
}

.plan__features li {
    padding: 6px 0;
    font-size: 0.9rem;
    color: var(--color-gray-600);
    display: flex;
    align-items: center;
    gap: 8px;
}

.plan__features li::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.plan .btn {
    width: 100%;
}

/* ============================================
   CARACTERÍSTICAS
   ============================================ */
.features {
    padding: 80px 0;
    background: var(--color-gray-50);
}

.features__header {
    text-align: center;
    margin-bottom: 60px;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature {
    background: var(--color-white);
    padding: 32px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

.feature:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.feature__icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.feature h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary-darker);
    margin-bottom: 6px;
}

.feature p {
    font-size: 0.9rem;
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* ============================================
   TESTIMONIOS
   ============================================ */
.testimonials {
    padding: 80px 0;
    background: var(--color-white);
}

.testimonials__header {
    text-align: center;
    margin-bottom: 60px;
}

.testimonials__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial {
    background: var(--color-gray-50);
    padding: 32px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.testimonial__text {
    font-size: 1rem;
    color: var(--color-gray-700);
    font-style: italic;
    margin-bottom: 16px;
    line-height: 1.7;
}

.testimonial__author {
    display: flex;
    flex-direction: column;
}

.testimonial__author strong {
    font-weight: 700;
    color: var(--color-primary-darker);
}

.testimonial__author span {
    font-size: 0.85rem;
    color: var(--color-gray-500);
}

/* ============================================
   REGISTRO / ACTIVACIÓN
   ============================================ */
.registro {
    padding: 80px 0;
    background: var(--color-gray-50);
}

.registro__header {
    text-align: center;
    margin-bottom: 60px;
}

.registro__subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-500);
    max-width: 600px;
    margin: 0 auto;
}

.registro__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    max-width: 1000px;
    margin: 0 auto;
}

.registro__form {
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.registro__form h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary-darker);
    margin-bottom: 24px;
}

.registro__form input,
.registro__form select {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 16px;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color 0.2s ease;
    background: var(--color-white);
}

.registro__form input:focus,
.registro__form select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.registro__submit {
    width: 100%;
    margin-top: 8px;
}

.registro__legal {
    font-size: 0.8rem;
    color: var(--color-gray-400);
    text-align: center;
    margin-top: 16px;
}

.registro__benefits {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 12px;
}

.registro__benefit {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.registro__benefit span {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.registro__benefit h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary-darker);
    margin-bottom: 4px;
}

.registro__benefit p {
    font-size: 0.9rem;
    color: var(--color-gray-500);
}

/* ============================================
   PRUEBA GRATIS (Opcional - Discreta)
   ============================================ */
.demo {
    padding: 40px 0 80px;
    background: var(--color-white);
}

.demo__box {
    max-width: 700px;
    margin: 0 auto;
    padding: 16px 24px;
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-200);
    transition: all 0.3s ease;
}

.demo__box:hover {
    border-color: var(--color-gray-300);
}

.demo__content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.demo__icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.demo__text {
    flex: 1;
}

.demo__text h2 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 1px;
}

.demo__text p {
    font-size: 0.7rem;
    color: var(--color-gray-400);
    margin: 0;
}

.demo__btn {
    font-size: 0.75rem;
    padding: 6px 16px;
    flex-shrink: 0;
}

.demo__form {
    max-width: 400px;
    margin: 16px auto 0;
    padding: 20px 24px 24px;
    background: var(--color-white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.demo__form input,
.demo__form select {
    width: 100%;
    padding: 10px 14px;
    margin-bottom: 10px;
    border: 1.5px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 0.85rem;
    transition: border-color 0.2s ease;
    background: var(--color-white);
}

.demo__form input:focus,
.demo__form select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.demo__form .btn {
    width: 100%;
    font-size: 0.85rem;
    padding: 10px;
}

.demo__legal {
    font-size: 0.65rem;
    color: var(--color-gray-400);
    text-align: center;
    margin-top: 10px;
}

/* ============================================
   CTA FINAL
   ============================================ */
.cta-final {
    padding: 80px 0;
    background: linear-gradient(165deg, var(--color-primary-darker) 0%, var(--color-primary-dark) 100%);
}

.cta-final__box {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-final__box h2 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 12px;
}

.cta-final__box p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    margin-bottom: 32px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 60px 0 0;
}

.footer__container {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__brand .logo__text {
    color: var(--color-white);
}

.footer__brand .logo__text span {
    color: var(--color-primary);
}

.footer__brand .logo__subtitle {
    color: var(--color-gray-400);
}

.footer__description {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--color-gray-400);
    max-width: 280px;
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer__links h4 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-white);
    margin-bottom: 12px;
}

.footer__links ul li {
    margin-bottom: 6px;
}

.footer__links ul li a {
    font-size: 0.9rem;
    color: var(--color-gray-400);
    transition: color 0.2s ease;
}

.footer__links ul li a:hover {
    color: var(--color-primary-light);
}

.footer__bottom {
    padding: 20px 0;
    background: rgba(0, 0, 0, 0.2);
}

.footer__bottom p {
    font-size: 0.8rem;
    color: var(--color-gray-500);
    text-align: center;
}