/* ==========================================================================
   Base — Reset y estilos globales
   ========================================================================== */

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

html {
    font-size: 100%;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--ml-font-body);
    font-size: var(--ml-fs-base);
    font-weight: var(--ml-fw-normal);
    line-height: var(--ml-lh-base);
    color: var(--ml-gray-900);
    background-color: var(--ml-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
    text-rendering: optimizeLegibility;
}

/* ── Tipografía ── */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--ml-font-heading);
    font-weight: var(--ml-fw-bold);
    line-height: var(--ml-lh-tight);
    color: var(--ml-secondary);
    letter-spacing: 0.01em;
}

h1 { font-size: var(--ml-fs-4xl); }
h2 { font-size: var(--ml-fs-3xl); }
h3 { font-size: var(--ml-fs-2xl); }
h4 { font-size: var(--ml-fs-xl); }
h5 { font-size: var(--ml-fs-lg); }
h6 { font-size: var(--ml-fs-md); }

p {
    margin-bottom: var(--ml-space-md);
}

a {
    color: var(--ml-primary);
    text-decoration: none;
    transition: color var(--ml-transition);
}

a:hover {
    color: var(--ml-primary-dark);
}

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

ul, ol {
    list-style: none;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ── Contenedores ── */

.ml-container {
    width: 100%;
    max-width: var(--ml-container);
    margin-inline: auto;
    padding-inline: var(--ml-space-lg);
}

.ml-container--sm {
    max-width: var(--ml-container-sm);
}

.ml-container--lg {
    max-width: var(--ml-container-lg);
}

/* ── Utilidades ── */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.ml-section {
    padding-block: var(--ml-space-4xl);
}

.ml-section--sm {
    padding-block: var(--ml-space-2xl);
}

/* ── Botones ── */

.ml-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--ml-space-sm);
    padding: 0.75rem 1.5rem;
    font-family: var(--ml-font-heading);
    font-size: var(--ml-fs-sm);
    font-weight: var(--ml-fw-semibold);
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border: 2px solid transparent;
    border-radius: var(--ml-radius-full);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
}

.ml-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent);
    opacity: 0;
    transition: opacity 0.4s;
}

.ml-btn:hover::before {
    opacity: 1;
}

.ml-btn--primary {
    background: linear-gradient(135deg, var(--ml-primary), var(--ml-primary-dark));
    color: var(--ml-white);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(200, 16, 46, 0.3);
}

.ml-btn--primary:hover {
    box-shadow: 0 6px 25px rgba(200, 16, 46, 0.45);
    transform: translateY(-2px);
    color: var(--ml-white);
}

.ml-btn--secondary {
    background: linear-gradient(135deg, var(--ml-secondary), var(--ml-secondary-dark));
    color: var(--ml-white);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(9, 65, 79, 0.25);
}

.ml-btn--secondary:hover {
    box-shadow: 0 6px 25px rgba(9, 65, 79, 0.4);
    transform: translateY(-2px);
    color: var(--ml-white);
}

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

.ml-btn--outline:hover {
    background: linear-gradient(135deg, var(--ml-primary), var(--ml-primary-dark));
    color: var(--ml-white);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(200, 16, 46, 0.3);
    transform: translateY(-2px);
}

.ml-btn--accent {
    background: linear-gradient(135deg, var(--ml-accent), var(--ml-accent-dark));
    color: var(--ml-white);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(74, 193, 192, 0.3);
}

.ml-btn--accent:hover {
    box-shadow: 0 6px 25px rgba(74, 193, 192, 0.45);
    transform: translateY(-2px);
    color: var(--ml-white);
}

.ml-btn--sm {
    padding: 0.5rem 1rem;
    font-size: var(--ml-fs-xs);
}

.ml-btn--lg {
    padding: 1rem 2rem;
    font-size: var(--ml-fs-base);
}

.ml-btn--icon {
    padding: 0.625rem;
    border-radius: var(--ml-radius-full);
}

/* ── Animaciones de scroll ── */

@keyframes ml-fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes ml-fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes ml-scaleIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes ml-slideLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes ml-slideRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes ml-float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-12px); }
}

/* Elementos con animación al aparecer en viewport */
.ml-animate {
    opacity: 0;
    transform: translateY(24px);
    filter: blur(6px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                filter 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.ml-animate.is-visible {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

.ml-animate--delay-1 { transition-delay: 0.08s; }
.ml-animate--delay-2 { transition-delay: 0.16s; }
.ml-animate--delay-3 { transition-delay: 0.24s; }
.ml-animate--delay-4 { transition-delay: 0.32s; }
.ml-animate--delay-5 { transition-delay: 0.40s; }

.ml-animate--scale {
    transform: scale(0.95);
    filter: blur(4px);
}
.ml-animate--scale.is-visible {
    transform: scale(1);
    filter: blur(0);
}

.ml-animate--left {
    transform: translateX(-30px);
    filter: blur(4px);
}
.ml-animate--left.is-visible {
    transform: translateX(0);
    filter: blur(0);
}

.ml-animate--right {
    transform: translateX(30px);
    filter: blur(4px);
}
.ml-animate--right.is-visible {
    transform: translateX(0);
    filter: blur(0);
}