/**
 * VIRAXIS — Componentes
 * Piezas reutilizables de UI: botones, panel de cristal, header,
 * loader, cursor personalizado, botones flotantes y formularios.
 */

/* =========================================================
   BOTONES
   ========================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-utility);
    font-weight: 600;
    font-size: var(--fs-sm);
    padding: 13px 26px;
    border-radius: var(--radius-pill);
    transition: transform var(--t-fast) var(--ease-out),
                box-shadow var(--t-base) var(--ease-standard),
                background-color var(--t-base) var(--ease-standard),
                color var(--t-base) var(--ease-standard);
    white-space: nowrap;
    border: 1px solid transparent;
}

.btn i {
    font-size: 0.95em;
    transition: transform var(--t-fast) var(--ease-out);
}

.btn:hover {
    transform: translateY(-2px);
}

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

.btn-cta {
    background: var(--color-cta);
    color: #1F2937;
    box-shadow: var(--shadow-cta);
}

.btn-cta:hover {
    background: var(--color-cta-dark);
    box-shadow: 0 16px 32px rgba(248, 173, 42, 0.34);
}

.btn-cta:hover i {
    transform: translateX(3px);
}

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

html.dark-mode .btn-outline {
    color: var(--color-text);
}

.btn-outline:hover {
    border-color: var(--color-secondary);
    background: rgba(45, 133, 152, 0.08);
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--fs-base);
}

.btn-sm {
    padding: 9px 18px;
    font-size: var(--fs-xs);
}

.btn-block {
    width: 100%;
}

/* =========================================================
   GLASSMORPHISM
   ========================================================= */
.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--shadow-lg);
}

/* =========================================================
   LOADER INICIAL
   ========================================================= */
#viraxis-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
    background: var(--color-bg);
    transition: opacity 0.5s var(--ease-standard), visibility 0.5s;
}

#viraxis-loader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-mark {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.loader-mark svg {
    animation: spin 1.1s linear infinite;
    transform-origin: center;
}

.loader-word {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 0.18em;
    font-size: var(--fs-sm);
    color: var(--color-primary);
}

html.dark-mode .loader-word {
    color: var(--color-text);
}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 900;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background-color var(--t-base) var(--ease-standard),
                border-color var(--t-base) var(--ease-standard),
                box-shadow var(--t-base) var(--ease-standard);
}

.site-header.is-scrolled {
    background: rgba(247, 249, 252, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom-color: var(--color-border);
}

html.dark-mode .site-header.is-scrolled {
    background: rgba(11, 27, 43, 0.82);
    border-bottom-color: var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--color-primary);
}

html.dark-mode .brand {
    color: var(--color-text);
}

.brand-mark {
    display: inline-flex;
    color: var(--color-cta);
}

.brand-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 0.01em;
}

.main-nav ul {
    display: flex;
    gap: 36px;
}

.main-nav a {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    transition: color var(--t-fast) var(--ease-standard);
}

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

html.dark-mode .main-nav a:hover {
    color: var(--color-text);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: var(--color-text-muted);
    font-size: 1rem;
    transition: background-color var(--t-fast) var(--ease-standard), color var(--t-fast);
}

html.dark-mode .theme-toggle {
    color: var(--color-cta);
}

.theme-toggle:hover {
    background: rgba(var(--color-primary-rgb), 0.08);
    color: var(--color-primary);
}

html.dark-mode .theme-toggle:hover {
    color: var(--color-cta);
}

.header-cta {
    display: none;
    margin-left: 8px;
}

@media (min-width: 1024px) {
    .header-cta {
        display: inline-flex;
    }
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
    .main-nav {
        display: block;
    }
}

@media (max-width: 1023px) {
    .main-nav {
        display: none;
    }
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: transform var(--t-base) var(--ease-standard), opacity var(--t-base);
}

html.dark-mode .nav-toggle span {
    background: var(--color-text);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
}

/* ===== Menú móvil ===== */
.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(82vw, 320px);
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--color-bg-alt);
    z-index: 1000;
    padding: calc(var(--header-height) + 12px) 28px 32px;
    transform: translateX(100%);
    transition: transform var(--t-base) var(--ease-out);
    box-shadow: var(--shadow-lg);
}

.mobile-nav.is-open {
    transform: translateX(0);
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mobile-nav a {
    display: block;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: var(--fs-md);
    color: var(--color-text);
    padding: 11px 0;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav nav {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.mobile-nav .btn {
    margin-top: auto;
}

.mobile-nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t-base), visibility var(--t-base);
}

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

/* =========================================================
   BOTONES FLOTANTES
   ========================================================= */
.floating-btn {
    position: fixed;
    right: 24px;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    z-index: 800;
    box-shadow: var(--shadow-md);
    transition: transform var(--t-fast) var(--ease-out), opacity var(--t-base);
}

.floating-whatsapp {
    bottom: 96px;
    background: #25D366;
    color: #fff;
}

.floating-top {
    bottom: 28px;
    background: var(--color-primary);
    color: #fff;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    font-size: 1.2rem;
}

.floating-top.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.floating-btn:hover {
    transform: translateY(-3px) scale(1.04);
}

@media (max-width: 540px) {
    .floating-btn {
        right: 16px;
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
    }
    .floating-whatsapp {
        bottom: 84px;
    }
    .floating-top {
        bottom: 24px;
    }
}

/* =========================================================
   CURSOR PERSONALIZADO (solo dispositivos con puntero fino)
   ========================================================= */
.custom-cursor {
    display: none;
}

@media (hover: hover) and (pointer: fine) {
    .custom-cursor {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        z-index: 10000;
        pointer-events: none;
        mix-blend-mode: difference;
    }

    .cursor-dot,
    .cursor-ring {
        position: fixed;
        top: 0;
        left: 0;
        border-radius: 50%;
        transform: translate(-50%, -50%);
        pointer-events: none;
    }

    .cursor-dot {
        width: 6px;
        height: 6px;
        background: #fff;
    }

    .cursor-ring {
        width: 32px;
        height: 32px;
        border: 1.5px solid #fff;
        transition: width var(--t-fast) var(--ease-out), height var(--t-fast) var(--ease-out), opacity var(--t-fast);
    }

    .cursor-ring.is-active {
        width: 46px;
        height: 46px;
        opacity: 0.6;
    }

    body {
        cursor: none;
    }

    a, button, [role="button"], input, textarea, select {
        cursor: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .custom-cursor {
        display: none !important;
    }
    body, a, button {
        cursor: auto !important;
    }
}

/* =========================================================
   TARJETAS GENÉRICAS
   ========================================================= */
.stat-card,
.philosophy-card,
.service-card,
.benefit-card,
.why-us-card,
.use-case-card,
.tech-badge {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: transform var(--t-base) var(--ease-out),
                box-shadow var(--t-base) var(--ease-standard),
                border-color var(--t-base) var(--ease-standard);
}

.philosophy-card:hover,
.service-card:hover,
.benefit-card:hover,
.why-us-card:hover,
.use-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-strong);
}

/* =========================================================
   FORMULARIOS
   ========================================================= */
.form-field {
    margin-bottom: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
}

@media (min-width: 600px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.form-field label {
    display: block;
    font-family: var(--font-utility);
    font-weight: 600;
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    margin-bottom: 7px;
}

.form-field label span {
    color: var(--color-cta-dark);
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    color: var(--color-text);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    transition: border-color var(--t-fast) var(--ease-standard), box-shadow var(--t-fast);
    resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(45, 133, 152, 0.15);
}

.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
    border-color: var(--color-error);
}

.field-error {
    display: block;
    font-size: var(--fs-xs);
    color: var(--color-error);
    margin-top: 6px;
    min-height: 1em;
}

.honeypot {
    position: absolute;
    left: -9999px;
    top: -9999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.btn-spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(31, 41, 55, 0.3);
    border-top-color: #1F2937;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.btn.is-loading .btn-label {
    opacity: 0.6;
}

.btn.is-loading .btn-spinner {
    display: inline-block;
}

.form-disclaimer {
    font-size: var(--fs-xs);
    color: var(--color-text-soft);
    margin-top: 14px;
    text-align: center;
}

.form-disclaimer a {
    color: var(--color-secondary);
    font-weight: 600;
}

.form-feedback {
    margin-top: 14px;
    font-size: var(--fs-sm);
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 0;
    text-align: center;
    transition: padding var(--t-fast);
}

.form-feedback.is-success {
    padding: 12px;
    background: rgba(136, 201, 185, 0.2);
    color: var(--color-primary);
}

.form-feedback.is-error {
    padding: 12px;
    background: rgba(223, 37, 42, 0.1);
    color: var(--color-error);
}