/* ========================================
   CSS VARIABLES
======================================== */
:root {
    --black: #000000;
    --black-soft: #050505;
    --black-light: #0a0a0a;
    --gray-dark: #111111;
    --gray: #1a1a1a;
    --gray-mid: #333333;
    --gray-light: #666666;
    --gray-lighter: #888888;
    --white-dark: #aaaaaa;
    --white-soft: #cccccc;
    --white-off: #e5e5e5;
    --white: #ffffff;

    --font-display: 'Bebas Neue', sans-serif;
    --font-heading: 'Syne', sans-serif;
    --font-body: 'Outfit', sans-serif;

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    font-weight: 400;
}

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

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

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

button {
    cursor: pointer;
}

ul, ol {
    list-style: none;
}

/* ========================================
   PARTICLES
======================================== */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    background: var(--white);
    border-radius: 50%;
    opacity: 0;
}

.particle.size-sm {
    width: 4px;
    height: 4px;
}

.particle.size-md {
    width: 8px;
    height: 8px;
    box-shadow: 0 0 10px 2px rgba(255, 255, 255, 0.3);
}

.particle.size-lg {
    width: 12px;
    height: 12px;
    box-shadow:
        0 0 15px 3px rgba(255, 255, 255, 0.4),
        0 0 30px 6px rgba(255, 255, 255, 0.2);
}

.particle.size-xl {
    width: 16px;
    height: 16px;
    box-shadow:
        0 0 20px 5px rgba(255, 255, 255, 0.5),
        0 0 40px 10px rgba(255, 255, 255, 0.2);
}

/* ========================================
   UTILITY CLASSES
======================================== */
.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 2;
}

@media (min-width: 768px) {
    .container {
        padding: 0 3rem;
    }
}

.section {
    padding: 4rem 0;
    position: relative;
    z-index: 2;
    background: transparent;
}

@media (min-width: 600px) {
    .section {
        padding: 5rem 0;
    }
}

@media (min-width: 1024px) {
    .section {
        padding: 8rem 0;
    }
}

/* ========================================
   TEXT EFFECTS
======================================== */
.text-glitch {
    position: relative;
    display: inline-block;
}

.text-glitch::before,
.text-glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.text-glitch::before {
    color: var(--white);
    z-index: -1;
}

.text-glitch::after {
    color: var(--gray-lighter);
    z-index: -2;
}

.text-glitch:hover::before {
    animation: glitch-1 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
    opacity: 0.8;
}

.text-glitch:hover::after {
    animation: glitch-2 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) reverse both infinite;
    opacity: 0.8;
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-3px, 3px); }
    40% { transform: translate(-3px, -3px); }
    60% { transform: translate(3px, 3px); }
    80% { transform: translate(3px, -3px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(3px, -3px); }
    40% { transform: translate(3px, 3px); }
    60% { transform: translate(-3px, -3px); }
    80% { transform: translate(-3px, 3px); }
}

.text-gradient {
    background: linear-gradient(
        135deg,
        var(--white) 0%,
        var(--gray-lighter) 25%,
        var(--white) 50%,
        var(--gray-lighter) 75%,
        var(--white) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientFlow 3s linear infinite;
}

@keyframes gradientFlow {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.text-outline {
    -webkit-text-stroke: 2px var(--white);
    -webkit-text-fill-color: transparent;
    transition: all var(--transition-normal);
}

.text-outline:hover {
    -webkit-text-fill-color: var(--white);
}

/* ========================================
   SKIP LINK
======================================== */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--white);
    color: var(--black);
    padding: 1rem 2rem;
    z-index: 9999;
    font-weight: 600;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* ========================================
   FOCUS STYLES
======================================== */
:focus-visible {
    outline: 2px solid var(--white);
    outline-offset: 4px;
}

/* ========================================
   HEADER
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    background: transparent;
    transition: all var(--transition-normal);
}

@media (min-width: 768px) {
    .header {
        padding: 0 3rem;
    }
}

.header.scrolled {
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Logo con imagen */
.logo {
    display: flex;
    align-items: center;
    z-index: 1002;
    transition: all var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-img {
    height: 45px;
    width: auto;
    transition: all var(--transition-fast);
}

@media (min-width: 768px) {
    .logo-img {
        height: 55px;
    }
}

.logo-text {
    font-family: var(--font-display);
    font-size: clamp(0.9rem, 3vw, 1.75rem);
    letter-spacing: 0.08em;
    color: var(--white);
    margin-left: 0.5rem;
    display: block;
}

@media (min-width: 480px) {
    .logo-text {
        margin-left: 0.75rem;
    }
}

/* ========================================
   NAV DESKTOP
======================================== */
.nav-desktop {
    display: none;
}

@media (min-width: 1024px) {
    .nav-desktop {
        display: flex;
        align-items: center;
        gap: 3rem;
    }
}

/* Entre 1024px y 1200px el header aprieta: reducimos el espaciado de la
   navegación para que quepan logo + enlaces + botón + selector de idioma. */
@media (min-width: 1024px) and (max-width: 1199px) {
    .nav-desktop {
        gap: 1.75rem;
    }
}

.nav-desktop a {
    position: relative;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--white-soft);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.nav-desktop a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--white);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-desktop a:hover {
    color: var(--white);
}

.nav-desktop a:hover::before {
    width: 100%;
}

/* Header actions (login button) */
.header-actions {
    display: none;
    align-items: center;
    gap: 1rem;
}

@media (min-width: 1024px) {
    .header-actions {
        display: flex;
        z-index: 1002;
    }
}

.login-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    /* responsive sizing */
    padding: 0 clamp(0.5rem, 2vw, 0.9rem);
    height: clamp(32px, 4vh, 40px);
    line-height: 1;
    font-family: var(--font-heading);
    font-size: clamp(0.75rem, 2.4vw, 0.9rem);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--white);
    background: transparent;
    border: 2px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    transform: translateY(101%);
    transition: transform var(--transition-normal);
}

.login-btn span { position: relative; z-index: 1; }

/* Login icon (inline SVG) */
.login-icon {
    width: 18px;
    height: 18px;
    margin-right: 0.5rem;
    display: inline-block;
    vertical-align: middle;
}

/* Hide the textual label on smaller screens (mobile & tablet), keep icon visible */
.login-text {
    display: inline-block;
}

@media (max-width: 1024px) {
    .login-text { display: none; }
}

.login-btn:hover { border-color: var(--white); color: var(--black); }
.login-btn:hover::before { transform: translateY(0); }

/* Language select (styled to match header buttons) */
.lang-select select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.12);
    padding: 0 clamp(0.5rem, 2vw, 0.9rem);
    height: clamp(32px, 4vh, 40px);
    min-width: 64px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    /* Centra el texto de la opción seleccionada dentro del botón,
       para que en móvil el nombre del idioma quede alineado al centro. */
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.lang-select select:focus {
    outline: none;
    border-color: var(--white);
    color: var(--black);
    background: var(--white);
}

/* Responsive tweaks for small screens (phone/tablet) */
@media (max-width: 767px) {
    .header-actions {
        gap: 0.5rem;
    }
    .login-btn {
        font-size: clamp(0.72rem, 2.6vw, 0.85rem);
        height: clamp(30px, 5vh, 36px);
        padding: 0 clamp(0.4rem, 3vw, 0.6rem);
    }
    .lang-select select {
        font-size: clamp(0.72rem, 2.6vw, 0.85rem);
        height: clamp(30px, 5vh, 36px);
        padding: 0 0.6rem;
        /* Alineación de respaldo para WebViews/iOS antiguos: la opción
           seleccionada se centra también cuando el navegador usa la última
           línea para posicionar el texto del <select>. */
        text-align-last: center;
    }
}

@media (max-width: 420px) {
    /* conserve espacio en pantallas muy pequeñas */
    .header-actions { gap: 0.4rem; }
    .login-btn { padding: 0 0.5rem; }
    .lang-select select { padding: 0 0.45rem; }
}

.visually-hidden {
    position: absolute !important;
    height: 1px; width: 1px;
    overflow: hidden;
    clip: rect(1px, 1px, 1px, 1px);
    white-space: nowrap;
}

/* ========================================
   HAMBURGER
======================================== */
.hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1003;
    position: relative;
}

@media (min-width: 1024px) {
    .hamburger {
        display: none;
    }
}

.hamburger-box {
    position: relative;
    width: 32px;
    height: 24px;
}

.hamburger-line {
    position: absolute;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hamburger-line:nth-child(1) {
    top: 0;
    width: 100%;
}

.hamburger-line:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
    width: 75%;
}

.hamburger-line:nth-child(3) {
    bottom: 0;
    width: 50%;
}

.hamburger:hover .hamburger-line:nth-child(1) {
    width: 50%;
}

.hamburger:hover .hamburger-line:nth-child(2) {
    width: 100%;
}

.hamburger:hover .hamburger-line:nth-child(3) {
    width: 75%;
}

.hamburger.active .hamburger-line:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 100%;
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: translateY(-50%) translateX(-20px);
}

.hamburger.active .hamburger-line:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
    width: 100%;
}

.hamburger::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all 0.3s ease;
    opacity: 0;
}

.hamburger:hover::before {
    opacity: 1;
    width: 56px;
    height: 56px;
}

.hamburger.active::before {
    opacity: 1;
    border-color: var(--white);
    width: 52px;
    height: 52px;
}

/* ========================================
   NAV MOBILE
======================================== */
.nav-mobile {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--black);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: calc(var(--header-height) + 1rem) 1rem 2rem;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-mobile.active {
    opacity: 1;
    visibility: visible;
}

@media (min-width: 1024px) {
    .nav-mobile {
        display: none !important;
    }
}

.nav-mobile-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.nav-mobile-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,0.03) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(255,255,255,0.02) 0%, transparent 40%);
}

.nav-mobile-bg-circle {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.nav-mobile-bg-circle:nth-child(1) {
    width: 300px;
    height: 300px;
    animation: circlePulse 4s ease-in-out infinite;
}

.nav-mobile-bg-circle:nth-child(2) {
    width: 500px;
    height: 500px;
    animation: circlePulse 4s ease-in-out infinite 0.5s;
}

.nav-mobile-bg-circle:nth-child(3) {
    width: 700px;
    height: 700px;
    animation: circlePulse 4s ease-in-out infinite 1s;
}

@keyframes circlePulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.2; }
}

.nav-mobile-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex: 1 1 auto;
    min-height: 0;
    position: relative;
    z-index: 2;
}

.nav-mobile-link {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 12vw, 5rem);
    color: var(--white);
    letter-spacing: 0.05em;
    position: relative;
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 0.25rem 1rem; /* área táctil ampliada en móvil */
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    -webkit-tap-highlight-color: transparent;
}

.nav-mobile.active .nav-mobile-link {
    opacity: 1;
    transform: translateY(0);
}

.nav-mobile.active .nav-mobile-link:nth-child(1) { transition-delay: 0.1s; }
.nav-mobile.active .nav-mobile-link:nth-child(2) { transition-delay: 0.15s; }
.nav-mobile.active .nav-mobile-link:nth-child(3) { transition-delay: 0.2s; }
.nav-mobile.active .nav-mobile-link:nth-child(4) { transition-delay: 0.25s; }
.nav-mobile.active .nav-mobile-link:nth-child(5) { transition-delay: 0.3s; }

.nav-mobile-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--white);
    transition: width 0.3s ease;
}

.nav-mobile-link:hover {
    color: var(--gray-lighter);
}

.nav-mobile-link:hover::before {
    width: 100%;
}

.nav-mobile-footer {
    text-align: center;
    padding-bottom: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease 0.35s;
}

.nav-mobile.active .nav-mobile-footer {
    opacity: 1;
    transform: translateY(0);
}

.nav-mobile-footer p {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--gray-light);
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

/* Botón de acceso al login dentro del menú móvil (los enlaces de secciones
   no incluyen login; aquí se garantiza el acceso desde móvil/tablet). */
/* Selector de idioma dentro del menú móvil/tablet: repite el control de la
   cabecera para no perder la traducción cuando la navegación es hamburguesa. */
.lang-select-mobile {
    display: flex;
    justify-content: center;
    margin-top: 1.25rem;
}

.lang-select-mobile select {
    min-width: 120px;
    height: 48px;
    /* Asegura que el contenido del botón quede centrado también en el
       selector del menú hamburguesa (además del botón, que ya se centra
       con justify-content en el contenedor). */
    text-align: center;
    text-align-last: center;
}

.nav-mobile-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    margin-top: 1.5rem;
    padding: 0 2rem;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    transition: all var(--transition-normal);
    -webkit-tap-highlight-color: transparent;
}

.nav-mobile-login:hover {
    color: var(--black);
    background: var(--white);
    border-color: var(--white);
}

/* ========================================
   NAV MOBILE - TELÉFONOS (compacto y prolijo)
   En pantallas de móvil los enlaces quedaban muy
   separados por el tamaño tipográfico y el gap.
   Aquí se compactan sin perder el estilo de la
   página (tipografías, animaciones y fondo).
======================================== */
@media (max-width: 767px) {
    .nav-mobile {
        padding: calc(var(--header-height) * 0.85) 1rem 1.5rem;
    }

    .nav-mobile-links {
        gap: 0.85rem;
    }

    .nav-mobile-link {
        font-size: clamp(1.9rem, 8vw, 3rem);
        letter-spacing: 0.04em;
        padding: 0.25rem 1rem;
        min-height: 44px;
        width: 100%;
        justify-content: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    /* El último enlace no necesita separador inferior */
    .nav-mobile-link:last-child {
        border-bottom: none;
    }

    .nav-mobile-footer {
        padding-bottom: 1.25rem;
    }

    .lang-select-mobile {
        margin-top: 0.75rem;
    }

    .nav-mobile-login {
        margin-top: 0.9rem;
    }
}

/* Pantallas muy pequeñas: aún más compacto para que
   quepan los 5 enlaces + footer sin scroll. */
@media (max-width: 420px) {
    .nav-mobile-links {
        gap: 0.65rem;
    }

    .nav-mobile-link {
        font-size: clamp(1.6rem, 7.5vw, 2.2rem);
        min-height: 40px;
    }
}

/* ========================================
   HERO SECTION
======================================== */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: calc(var(--header-height) + 2rem) 1.5rem 6rem;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.4;
    z-index: 0;
}

.hero-bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 100px 100px;
    animation: gridMove 40s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

.hero-bg-gradient {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,0.05) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(255,255,255,0.03) 0%, transparent 40%);
    animation: gradientRotate 30s linear infinite;
}

@keyframes gradientRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1000px;
}

.hero-tagline {
    font-family: var(--font-heading);
    font-size: clamp(0.75rem, 2vw, 0.875rem);
    font-weight: 500;
    color: var(--gray-lighter);
    letter-spacing: 0.4em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 18vw, 12rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 0.85;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 300;
    color: var(--gray-lighter);
    max-width: 550px;
    margin: 0 auto;
    line-height: 1.8;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: calc(var(--header-height) + 1rem) 1.25rem 4rem;
    }

    .hero-tagline {
        letter-spacing: 0.25em;
        margin-bottom: 1.5rem;
    }

    .hero-title {
        font-size: clamp(3rem, 16vw, 4.5rem);
        margin-bottom: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.7;
    }
}

/* ========================================
   SCROLL INDICATOR
======================================== */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1s forwards;
    z-index: 10;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
    opacity: 0;
    animation: arrowFade 2s ease-in-out infinite;
}

.scroll-arrow:nth-child(1) { animation-delay: 0s; }
.scroll-arrow:nth-child(2) { animation-delay: 0.2s; }
.scroll-arrow:nth-child(3) { animation-delay: 0.4s; }
.scroll-arrow:nth-child(4) { animation-delay: 0.6s; }

@keyframes arrowFade {
    0%, 100% {
        opacity: 0;
        transform: rotate(45deg) translateY(-5px);
    }
    50% {
        opacity: 1;
        transform: rotate(45deg) translateY(5px);
    }
}

/* ========================================
   ABOUT SECTION
======================================== */
.about {
    background: rgba(5, 5, 5, 0.8);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.about-content {
    display: grid;
    gap: 3rem;
}

@media (min-width: 600px) {
    .about-content {
        gap: 4rem;
    }
}

@media (min-width: 1024px) {
    .about-content {
        grid-template-columns: 1.2fr 1fr;
        gap: 6rem;
        align-items: center;
    }
}

.about-text h2 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1;
    margin-bottom: 2rem;
}

.about-text p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 300;
    color: var(--gray-lighter);
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

.about-text p strong {
    color: var(--white);
    font-weight: 500;
}

.about-team {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.about-team-title {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-light);
    margin-bottom: 1.5rem;
}

.team-members {
    display: grid;
    gap: 1.5rem;
}

@media (min-width: 600px) {
    .team-members {
        grid-template-columns: repeat(2, 1fr);
    }
}

.team-member {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.team-member:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.team-member-name {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.team-member-alias {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--gray-lighter);
    font-style: italic;
    margin-bottom: 0.5rem;
}

.team-member-role {
    font-size: 0.8125rem;
    color: var(--white-soft);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.team-member-desc {
    font-size: 0.8125rem;
    color: var(--gray-light);
    line-height: 1.6;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (min-width: 600px) {
    .about-stats {
        gap: 1.5rem;
    }
}

.stat-item {
    padding: 1.5rem 1rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    text-align: center;
    transition: all var(--transition-fast);
}

@media (min-width: 600px) {
    .stat-item {
        padding: 2rem;
    }
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-5px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 400;
    color: var(--white);
    line-height: 1;
}

.stat-label {
    font-family: var(--font-heading);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gray-light);
    margin-top: 0.75rem;
}

/* ========================================
   SERVICES SECTION
======================================== */
.services {
    background: rgba(0, 0, 0, 0.8);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

@media (min-width: 600px) {
    .section-header {
        margin-bottom: 5rem;
    }
}

.section-label {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gray-light);
    margin-bottom: 1rem;
    display: block;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1;
}

.services-grid {
    display: grid;
    gap: 1px;
    background: rgba(255, 255, 255, 0.05);
}

@media (min-width: 600px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.9);
    transition: all var(--transition-normal);
    position: relative;
}

@media (min-width: 600px) {
    .service-card {
        padding: 2rem;
    }
}

@media (min-width: 1024px) {
    .service-card {
        padding: 2.5rem;
    }
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    background: rgba(10, 10, 10, 0.95);
}

.service-number {
    font-family: var(--font-display);
    font-size: 2.25rem;
    color: rgba(255, 255, 255, 0.08);
    line-height: 1;
    margin-bottom: 1.25rem;
    transition: color var(--transition-fast);
}

@media (min-width: 600px) {
    .service-number {
        font-size: 3rem;
        margin-bottom: 1.5rem;
    }
}

.service-card:hover .service-number {
    color: rgba(255, 255, 255, 0.15);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.service-card p {
    font-size: 0.9375rem;
    font-weight: 300;
    color: var(--gray-lighter);
    line-height: 1.7;
}

/* ========================================
   PROYECTO SECTION
======================================== */
.proyecto {
    background: rgba(5, 5, 5, 0.8);
    position: relative;
    overflow: hidden;
}

.proyecto::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.proyecto-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.proyecto-label {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gray-light);
    margin-bottom: 2rem;
    display: block;
}

.proyecto-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 12vw, 7rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 0.9;
    margin-bottom: 2rem;
}

.proyecto-title a {
    transition: all var(--transition-fast);
    display: inline-block;
}

.proyecto-title a:hover {
    transform: scale(1.02);
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
}

.proyecto-description {
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 300;
    color: var(--gray-lighter);
    line-height: 1.9;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.proyecto-link {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--white);
    padding: 1rem 2rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.proyecto-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    transform: translateX(-101%);
    transition: transform var(--transition-normal);
    z-index: -1;
}

.proyecto-link:hover {
    color: var(--black);
    border-color: var(--white);
}

.proyecto-link:hover::before {
    transform: translateX(0);
}

.proyecto-link svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    transition: transform var(--transition-fast);
}

.proyecto-link:hover svg {
    transform: translateX(5px) translateY(-5px);
}

/* ========================================
   PRICING SECTION
======================================== */
.pricing {
    background: rgba(0, 0, 0, 0.85);
    position: relative;
}

.pricing::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.pricing-grid {
    display: grid;
    gap: 1.5rem;
    margin-top: 3rem;
}

@media (min-width: 600px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        margin-top: 4rem;
    }
}

/* El plan destacado (Profesional) ocupa ancho completo en tablet para que
   no quede la tarjeta "featured" relegada en una columna impar. */
@media (min-width: 600px) and (max-width: 1023px) {
    .pricing-card.featured {
        grid-column: 1 / -1;
        width: 100%;
        max-width: 560px;
        margin: 0 auto;
    }
}

@media (min-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .pricing-card.featured {
        grid-column: auto;
        max-width: none;
        margin: 0;
    }
}

.pricing-card {
    position: relative;
    padding: 2rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    transition: all var(--transition-normal);
    overflow: hidden;
}

@media (min-width: 600px) {
    .pricing-card {
        padding: 2.5rem;
    }
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.pricing-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 0 100px rgba(255, 255, 255, 0.03);
}

.pricing-card.featured {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
    transform: scale(1.02);
}

.pricing-card.featured::before {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
}

@media (min-width: 1024px) {
    .pricing-card.featured {
        transform: scale(1.05);
    }

    .pricing-card.featured:hover {
        transform: scale(1.05) translateY(-10px);
    }
}

.pricing-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.5rem 1rem;
    background: var(--white);
    color: var(--black);
    font-family: var(--font-heading);
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: 50px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    z-index: 1;
}

.pricing-name {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-lighter);
    margin-bottom: 1rem;
}

.pricing-price {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 4rem);
    font-weight: 400;
    color: var(--white);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.pricing-price span {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--gray-lighter);
    font-weight: 300;
}

.pricing-features {
    position: relative;
    z-index: 1;
}

.pricing-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.875rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-feature:last-child {
    border-bottom: none;
}

.pricing-feature-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-top: 2px;
}

.pricing-feature-icon svg {
    width: 10px;
    height: 10px;
    stroke: var(--white);
    stroke-width: 3;
    fill: none;
}

.pricing-feature-text {
    font-size: 0.9375rem;
    font-weight: 300;
    color: var(--gray-lighter);
    line-height: 1.5;
}

.pricing-card.featured .pricing-feature-text {
    color: var(--white-soft);
}

.pricing-cta {
    margin-top: 2rem;
    position: relative;
    z-index: 1;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 1.25rem 2rem;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-align: center;
    color: var(--white);
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.pricing-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    transform: translateY(101%);
    transition: transform var(--transition-normal);
}

.pricing-btn span {
    position: relative;
    z-index: 1;
}

.pricing-btn:hover {
    border-color: var(--white);
    color: var(--black);
}

.pricing-btn:hover::before {
    transform: translateY(0);
}

.pricing-card.featured .pricing-btn {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}

.pricing-card.featured .pricing-btn::before {
    background: var(--black);
}

.pricing-card.featured .pricing-btn:hover {
    color: var(--white);
}

/* ========================================
   CONTACT SECTION
======================================== */
.contact {
    background: rgba(0, 0, 0, 0.85);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.contact-container {
    display: grid;
    gap: 3rem;
}

@media (min-width: 600px) {
    .contact-container {
        gap: 4rem;
    }
}

@media (min-width: 1024px) {
    .contact-container {
        grid-template-columns: 1fr 1fr;
        gap: 6rem;
    }
}

.contact-info h2 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.contact-info p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 300;
    color: var(--gray-lighter);
    line-height: 1.8;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 1.25rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    font-size: 1rem;
    font-weight: 400;
    transition: all var(--transition-fast);
}

.form-input::placeholder {
    color: var(--gray-light);
    font-weight: 300;
}

.form-input:focus {
    border-color: var(--white);
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--white);
    transition: width var(--transition-normal);
}

.form-input:focus ~ .form-line {
    width: 100%;
}

textarea.form-input {
    min-height: 120px;
    resize: vertical;
}

.btn-submit {
    align-self: flex-start;
    margin-top: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

@media (max-width: 599px) {
    .btn-submit {
        width: 100%;
    }
}

.btn-submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    transform: translateX(-101%);
    transition: transform var(--transition-normal);
    z-index: -1;
}

.btn-submit:hover {
    color: var(--black);
}

.btn-submit:hover::before {
    transform: translateX(0);
}

.btn-submit svg {
    transition: transform var(--transition-fast);
}

.btn-submit:hover svg {
    transform: translateX(5px);
}

/* Alias cómodo para botones usados en páginas nuevas */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn:hover { color: var(--black); }


/* ========================================
   FOOTER
======================================== */
.footer {
    background: rgba(5, 5, 5, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 4rem 0 2rem;
    position: relative;
    z-index: 2;
}

.footer-content {
    display: grid;
    gap: 2.5rem;
    margin-bottom: 3rem;
}

@media (min-width: 600px) {
    .footer-content {
        grid-template-columns: 1.5fr 1fr;
        gap: 3rem;
        margin-bottom: 4rem;
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: 1.5fr 1fr;
        gap: 4rem;
    }
}

.footer-brand .logo {
    margin-bottom: 1rem;
    display: inline-flex;
}

.footer-brand .logo-img {
    height: 60px;
}

@media (min-width: 600px) {
    .footer-brand .logo-img {
        height: 80px;
    }
}

@media (min-width: 1024px) {
    .footer-brand .logo-img {
        height: 100px;
    }
}

.footer-brand p {
    font-size: 0.9375rem;
    font-weight: 300;
    color: var(--gray-lighter);
    line-height: 1.8;
    max-width: 300px;
    margin-top: 1rem;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gray-light);
    margin-bottom: 1.5rem;
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-nav a {
    font-size: 0.9375rem;
    color: var(--white-soft);
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-nav a:hover {
    color: var(--white);
    transform: translateX(5px);
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--white);
    border-color: var(--white);
}

.footer-social svg {
    width: 18px;
    height: 18px;
    stroke: var(--white);
    stroke-width: 2;
    fill: none;
    transition: stroke var(--transition-fast);
}

.footer-social a:hover svg {
    stroke: var(--black);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--gray-light);
}

/* ========================================
   BACK TO TOP
======================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--black);
    color: var(--white);
    border: 2px solid var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 99;
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--white);
    color: var(--black);
    transform: translateY(-3px);
}

.back-to-top svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 2.5;
    fill: none;
}

/* ========================================
   ANIMATIONS
======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ========================================
   FALLBACK SIN JAVASCRIPT
   Si JS no carga o el navegador no soporta
   IntersectionObserver, los elementos que se
   revelan por scroll nunca reciben .visible y
   quedarían ocultos. Este bloque los muestra.
======================================== */
html.no-js .fade-in,
html.no-js .fade-in-left,
html.no-js .fade-in-right {
    opacity: 1;
    transform: none;
}

/* ========================================
   REDUCED MOTION
======================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .fade-in, .fade-in-left, .fade-in-right {
        opacity: 1;
        transform: none;
    }

    .particle {
        display: none;
    }
}

/* ========================================
   SELECTION & SCROLLBAR
======================================== */
::selection {
    background: var(--white);
    color: var(--black);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--black);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-mid);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-light);
}

/* ========================================
   PANTALLAS ALTAS 20:9 / 21:9 (Ultra-wide movil)
======================================== */
@media (min-aspect-ratio: 19/9) and (max-width: 500px) {
    .hero {
        padding-top: calc(var(--header-height) + 3rem);
        padding-bottom: 4rem;
        min-height: 100dvh;
    }

    .hero-title {
        font-size: clamp(3rem, 14vw, 5rem);
        margin-bottom: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        padding: 0 0.5rem;
    }

    .scroll-indicator {
        bottom: 2rem;
    }

    .section {
        padding: 5rem 0;
    }

    .container {
        padding: 0 1.5rem;
    }

    .about-stats {
        gap: 1rem;
    }

    .stat-item {
        padding: 1.5rem 1rem;
    }

    .pricing-card {
        padding: 2rem 1.5rem;
    }

    .team-member {
        padding: 1.25rem;
    }
}

/* ========================================
   SAFE AREA (Bordes curvos / Notch)
======================================== */
@supports (padding: env(safe-area-inset-left)) {
    .header {
        padding-left: max(1.5rem, env(safe-area-inset-left));
        padding-right: max(1.5rem, env(safe-area-inset-right));
    }

    .container {
        padding-left: max(1.5rem, env(safe-area-inset-left));
        padding-right: max(1.5rem, env(safe-area-inset-right));
    }

    .footer {
        padding-bottom: max(2rem, env(safe-area-inset-bottom));
    }

    .nav-mobile {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* ========================================
   RTL — Idiomas derecha a izquierda (árabe)
   El motor i18n.js fija html[dir="rtl"] automáticamente.
======================================== */
html[dir="rtl"] .logo-text {
    margin-left: 0;
    margin-right: 0.5rem;
}

html[dir="rtl"] .login-icon {
    margin-right: 0;
    margin-left: 0.5rem;
}

html[dir="rtl"] .nav-desktop {
    flex-direction: row-reverse;
}

html[dir="rtl"] .lang-select select {
    direction: ltr;
    text-align: right;
}

html[dir="rtl"] body,
html[dir="rtl"] .section-label,
html[dir="rtl"] .section-title {
    letter-spacing: 0;
    text-transform: none;
}

html[dir="rtl"] .hero-subtitle,
html[dir="rtl"] .section-description,
html[dir="rtl"] p {
    text-align: right;
}

html[dir="rtl"] .btn {
    letter-spacing: 0.02em;
}

html[dir="rtl"] .footer-brand,
html[dir="rtl"] .footer-links,
html[dir="rtl"] .footer-social {
    text-align: right;
}