/**
 * VELRUS - Estilos Globales y Clases Utilitarias
 * Contenedores, tipografía base, jerarquías visuales y botones corporativos.
 */

/* ==========================================================================
   Contenedores y Estructura
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container-wide {
    width: 100%;
    max-width: var(--container-wide);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container-narrow {
    width: 100%;
    max-width: var(--container-narrow);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

/* ==========================================================================
   Secciones y Fondos
   ========================================================================== */
.section {
    padding-top: var(--spacing-4xl);
    padding-bottom: var(--spacing-4xl);
    position: relative;
}

.section-sm {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
}

.section-light {
    background-color: var(--bg-surface-light);
}

.section-dark {
    background-color: var(--bg-dark-section);
    color: var(--text-light);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--color-white);
}

.section-dark p {
    color: var(--text-light-muted);
}

/* ==========================================================================
   Jerarquía Tipográfica y Encabezados de Sección
   ========================================================================== */
.section-header {
    margin-bottom: var(--spacing-2xl);
}

.section-header.text-center {
    text-align: center;
}

.eyebrow {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: var(--fs-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.85rem, 3.5vw, 2.75rem);
    letter-spacing: -0.025em;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: var(--fs-md);
    color: var(--text-muted);
    max-width: 680px;
    line-height: 1.6;
}

.text-center .section-subtitle {
    margin-left: auto;
    margin-right: auto;
}

/* Énfasis de marca corporativo */
.text-highlight {
    color: var(--color-primary);
}

.text-light {
    color: var(--color-white) !important;
}

/* ==========================================================================
   Botones Corporativos
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-size: var(--fs-sm);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    transition: all var(--transition-base);
    white-space: nowrap;
    text-decoration: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(32, 134, 254, 0.45);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-light);
    color: var(--text-heading);
}

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

.btn-link-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-primary);
    padding: 0.35rem 0;
    transition: gap var(--transition-fast), color var(--transition-fast);
}

.btn-link-action:hover {
    color: var(--color-primary-hover);
    gap: 0.75rem;
}

.btn-video-ghost {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
}

.btn-video-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* ==========================================================================
   Iconos Utilitarios
   ========================================================================== */
.icon {
    width: 1.25rem;
    height: 1.25rem;
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}

.icon-arrow {
    width: 1rem;
    height: 1rem;
    transition: transform var(--transition-fast);
}

.btn:hover .icon-arrow,
.btn-link-action:hover .icon-arrow {
    transform: translateX(3px);
}

/* ==========================================================================
   Etiquetas y Badges
   ========================================================================== */
.tag-badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: var(--fs-xs);
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(4px);
    color: var(--color-white);
}

.tag-badge-light {
    background: var(--color-primary-subtle);
    color: var(--color-primary);
    border: 1px solid rgba(32, 134, 254, 0.2);
}

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

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
}