/* 
======================================================
  NOTAS AGRONÓMICAS - ESTILOS PREMIUM
  Mobile-First | Diseño Técnico y Profesional
  Breakpoints: <480px | 481-768px | 769-1024px | >1024px
====================================================== 
*/

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400..900;1,400..900&family=Plus+Jakarta+Sans:wght@200..800&display=swap');


/* ====================================================
   VARIABLES CSS — Sistema de Diseño Unificado
==================================================== */
:root {
    /* Paleta 'Firefly' - Teal Series */
    --firefly-50: #f2fbfa;
    --firefly-100: #d4f3f1;
    --firefly-200: #a8e7e3;
    --firefly-300: #75d3d0;
    --firefly-400: #48b9b9;
    --firefly-500: #2f9b9d;
    --firefly-600: #237a7e;
    --firefly-700: #206165;
    --firefly-800: #1e4e51;
    --firefly-900: #1d4144;
    --firefly-950: #0b2528;

    /* Paleta Premium */
    --noir-bg: #0d0d0d;
    --noir-card: #1a1a1a;
    --accent-tan: #B08D74;
    --accent-tan-light: #CDB4A3;
    --slate-text: #a0a0a0;

    /* Mapeo Funcional */
    --primary-blue: var(--firefly-600);
    --light-blue: var(--firefly-100);
    --dark-blue: var(--firefly-800);
    --primary-green: var(--firefly-500);
    --light-green: var(--firefly-200);
    --dark-green: var(--firefly-900);

    /* UI General */
    --bg-light: #ffffff;
    --text-main: #1a1a1a;
    --text-muted: #555555;
    --white: #ffffff;

    --glass-bg: rgba(255, 255, 255, 0.98);
    --glass-border: #eeeeee;
    --glass-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);

    --border-radius: 6px;
    --transition-speed: 0.3s;
    --header-height: 64px;
    /* Reducido en mobile */

    /* Tipografía escalable */
    --fs-xs: 0.8rem;
    --fs-sm: 0.9rem;
    --fs-base: 1rem;
    --fs-lg: 1.15rem;
    --fs-xl: 1.4rem;
    --fs-2xl: 1.8rem;
    --fs-3xl: 2.5rem;
    --fs-hero: 3rem;
    /* Mobile base */

    /* Espaciado base */
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 20px;
    --space-lg: 30px;
    --space-xl: 48px;

    /* Touch target mínimo (WCAG) */
    --touch-target: 44px;
}


/* ====================================================
   RESET — Box Model & Flujo Base
==================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    /* Evita auto-zoom en iOS */
    font-size: 16px;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    padding-top: calc(var(--header-height) + 38px);
    /* Header + Top bar */
    line-height: 1.6;
    min-width: 320px;
    /* Mínimo absoluto: iPhone SE antiguo */
    overflow-x: hidden;
    /* Evita scroll horizontal */
}

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

/* Elimina retardo de 300ms en todos los dispositivos táctiles */
a,
button,
[role="button"],
input,
select,
label {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}


/* ====================================================
   TOP BAR — Social Media Icons
==================================================== */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--noir-bg);
    color: var(--white);
    height: 38px;
    /* Ligeramente más alta para mejor presencia */
    z-index: 1100;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    width: 100%;
    display: flex;
    justify-content: center;
    /* Centrado por defecto en móvil */
    gap: 20px;
    /* Más espacio entre iconos */
}

@media (min-width: 769px) {
    .top-bar-container {
        justify-content: flex-end;
        /* Alineado a la derecha en desktop */
    }
}

.social-link {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    padding: 4px;
}

.social-link:hover {
    transform: translateY(-2px);
    color: var(--white);
}

/* Colores de marca sutiles al hover */
.social-link[title="Facebook"]:hover {
    color: #1877F2;
}

.social-link[title="YouTube"]:hover {
    color: #FF0000;
}

.social-link[title="Instagram"]:hover {
    color: #E4405F;
}

.social-link[title="WhatsApp"]:hover {
    color: #25D366;
}

.social-link[title="LinkedIn"]:hover {
    color: #0A66C2;
}

.social-link[title="TikTok"]:hover {
    color: #00f2ea;
}

/* ====================================================
   HEADER — Mobile-first, fijo en pantalla
==================================================== */
header {
    position: fixed;
    top: 38px;
    /* Desplazado por la top-bar de 38px */
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--noir-bg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
    padding: 0 var(--space-md);
    color: var(--white);
    max-width: 1400px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    overflow: hidden;
}

.logo-container img {
    height: 36px;
    width: auto;
    flex-shrink: 0;
}

.logo-container a {
    color: var(--white);
    text-decoration: none;
    font-size: var(--fs-base);
    font-weight: 700;
    white-space: nowrap;
    letter-spacing: 0.3px;
}

/* Botón Hamburguesa — área táctil generosa */
.hamburger-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--touch-target);
    height: var(--touch-target);
    font-size: 24px;
    background: none;
    border: none;
    color: var(--white);
    cursor: pointer;
    border-radius: var(--border-radius);
    flex-shrink: 0;
    transition: background var(--transition-speed);
    /* Elimina el retardo táctil de 300ms en iOS/Android */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.hamburger-btn:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* Menú de navegación — oculto en móvil, dropdown */
.menu ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--noir-bg);
    padding: var(--space-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    align-items: center;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
    z-index: 1001;
    list-style: none;
}

.menu ul.show {
    display: flex;
}

.menu a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--fs-base);
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color var(--transition-speed);
    padding: var(--space-sm) var(--space-lg);
    display: block;
    width: 100%;
    text-align: center;
}

.menu a:hover {
    color: var(--accent-tan);
}




/* ====================================================
   SIDEBAR LATERAL — Mobile-first deslizable
==================================================== */
.side-header {
    position: fixed;
    top: calc(var(--header-height) + 32px);
    left: 0;
    height: calc(100vh - var(--header-height) - 32px);
    width: 260px;
    background: var(--noir-bg);
    z-index: 900;
    display: flex;
    flex-direction: column;
    padding-top: var(--space-sm);
    transition: transform var(--transition-speed) ease;
    transform: translateX(-100%);
    /* Oculto en móvil */
    overflow-y: auto;
    overflow-x: hidden;
}

.side-header.show {
    transform: translateX(0);
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.4);
}

.page-index .side-header {
    transform: translateX(-100%);
}

.side-menu {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: 0 var(--space-sm);
}

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 13px var(--space-sm);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: background var(--transition-speed);
    white-space: nowrap;
    min-height: var(--touch-target);
}

.menu-item:hover,
.menu-item.active {
    background: var(--primary-green);
}

.menu-item .icon {
    font-size: 1.2rem;
    min-width: 28px;
    text-align: center;
    flex-shrink: 0;
}

.menu-item .text {
    font-size: var(--fs-sm);
    transition: opacity var(--transition-speed), transform var(--transition-speed);
}


/* ====================================================
   CONTENIDO PRINCIPAL — margin-left reactivo
==================================================== */
main {
    margin-left: 0;
    padding: var(--space-md);
    transition: margin-left var(--transition-speed);
}

.page-index main {
    padding: 0;
}


/* ====================================================
   HERO SECTION (index.html)
==================================================== */
.hero {
    background-color: var(--noir-bg);
    color: var(--white);
    padding: 60px var(--space-md) 50px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-subtitle {
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--accent-tan);
    margin-bottom: var(--space-md);
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: var(--fs-hero);
    /* 3rem → crece con breakpoints */
    max-width: 900px;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    font-weight: 400;
}

.hero-description {
    font-size: var(--fs-base);
    color: var(--slate-text);
    max-width: 580px;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.hero-btn {
    background: var(--accent-tan);
    color: var(--white);
    padding: 16px 36px;
    text-decoration: none;
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: background 0.3s, transform 0.2s;
    border-radius: var(--border-radius);
    display: inline-block;
    min-height: var(--touch-target);
}

.hero-btn:hover {
    background: var(--accent-tan-light);
    transform: translateY(-2px);
}


/* ====================================================
   LAYOUT CON SIDEBAR DE ANUNCIOS
==================================================== */
.layout-with-ads {
    display: grid;
    grid-template-columns: 1fr;
    /* Una columna base en móvil */
    gap: var(--space-md);
    align-items: start;
}

.main-content {
    width: 100%;
    min-width: 0;
    /* Evita overflow en grid */
}

.ads-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.ad-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: var(--space-sm);
    box-shadow: var(--glass-shadow);
    text-align: center;
}

.ad-card h4 {
    margin-bottom: var(--space-xs);
    font-size: var(--fs-base);
    color: var(--dark-blue);
    font-weight: 600;
}

.ad-card p {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    margin-bottom: 15px;
}

.ad-card.donation {
    border-top: 4px solid #ffc107;
}

.ad-card.sponsor {
    border-top: 4px solid var(--primary-green);
}

.ad-placeholder {
    background-color: var(--firefly-50);
    border: 1px dashed var(--firefly-300);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--firefly-700);
    font-size: var(--fs-sm);
    width: 100%;
}

.ad-placeholder.vertical {
    height: 300px;
}

/* Reducido en móvil */
.ad-placeholder.square {
    height: 250px;
}


/* ====================================================
   TIPOGRAFÍA Y HEADINGS
==================================================== */
.page-title {
    color: var(--dark-blue);
    margin-bottom: var(--space-md);
    font-size: var(--fs-2xl);
    border-bottom: 2px solid var(--primary-green);
    padding-bottom: var(--space-xs);
    display: block;
    text-align: center;
}

h2 {
    font-size: var(--fs-xl);
}

h3 {
    font-size: var(--fs-lg);
}


/* ====================================================
   DASHBOARD CARDS — Grid mobile-first
==================================================== */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    /* 1 columna en móvil */
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.card {
    background: var(--white);
    border: 1px solid #f0f0f0;
    border-radius: var(--border-radius);
    padding: var(--space-md);
    /* Padding reducido en móvil */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.3s, background 0.4s, border-color 0.4s;
    display: flex;
    flex-direction: column;
}

/* En página index, altura mínima uniforme solo en desktop */
.card .card-description {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin-bottom: var(--space-md);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.09);
}

.card-header {
    font-family: 'Playfair Display', serif;
    color: var(--text-main);
    font-size: var(--fs-xl);
    margin-bottom: var(--space-sm);
    font-weight: 500;
}


/* ====================================================
   FORMULARIOS — Mobile-first, área táctil generosa
==================================================== */
.form-group {
    margin-bottom: var(--space-sm);
}

label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-main);
    font-weight: 600;
    font-size: var(--fs-sm);
}

/* font-size: 16px es crítico → evita zoom automático en iOS/Android */
input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: 13px 14px;
    border: 1.5px solid #d0d0d0;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-family: inherit;
    background-color: var(--white);
    color: var(--text-main);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    -webkit-appearance: none;
    appearance: none;
    min-height: var(--touch-target);
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
    border-color: var(--primary-blue);
    outline: none;
    box-shadow: 0 0 0 3px rgba(35, 122, 126, 0.2);
}

/* Input con unidad adosada */
.input-with-unit {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.input-with-unit input {
    flex: 1;
    min-width: 0;
    /* Evita overflow */
}

.input-with-unit span.unit {
    color: var(--text-muted);
    font-weight: 600;
    font-size: var(--fs-sm);
    min-width: 38px;
    text-align: right;
    white-space: nowrap;
}

/* Grid de 2 columnas en formularios — 1 col en móvil */
.grid-2-cols {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-sm);
}

/* Form inline: label + input en fila (solo desktop) */
.form-group-inline {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    margin-bottom: var(--space-sm);
}

.form-group-inline label {
    margin-bottom: 2px;
    color: var(--dark-blue);
}

.form-group-inline input {
    width: 100%;
}


/* ====================================================
   BOTONES — Touch targets generosos
==================================================== */
button,
.btn {
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    padding: 13px var(--space-md);
    font-size: var(--fs-base);
    font-family: inherit;
    cursor: pointer;
    font-weight: 700;
    transition: background var(--transition-speed), transform 0.15s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: var(--touch-target);
    text-decoration: none;
    letter-spacing: 0.3px;
}

button:hover,
.btn:hover {
    background-color: var(--dark-blue);
    transform: translateY(-1px);
}

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

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

button.btn-green:hover {
    background-color: var(--dark-green);
}

button.btn-danger {
    background-color: #dc3545;
}

button.btn-danger:hover {
    background-color: #c82333;
}

/* Botón sticky que permanece visible al hacer scroll en móvil */
.btn-sticky-mobile {
    position: sticky;
    bottom: var(--space-sm);
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    width: 100%;
}


/* ====================================================
   TABLAS — Con scroll horizontal táctil
==================================================== */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    /* Scroll suave en iOS */
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow);
    margin-bottom: var(--space-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: center;
    min-width: 480px;
    /* Fuerza scroll si es necesario */
}

th,
td {
    padding: 11px 8px;
    border-bottom: 1px solid #eee;
    font-size: var(--fs-sm);
}

th {
    background-color: var(--light-blue);
    color: var(--dark-blue);
    font-weight: 700;
    font-size: var(--fs-xs);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

tbody tr:hover {
    background-color: var(--firefly-50);
}

td input {
    width: 90%;
    min-width: 55px;
    padding: 6px;
    text-align: center;
    font-size: 15px;
}

.readonly-cell {
    background-color: #e9ecef;
    font-weight: 700;
    color: var(--dark-green);
}


/* ====================================================
   TABLA CONVERSOR — Tabla tradicional compacta
==================================================== */
.ion-table {
    display: table;
    width: 100%;
    border-collapse: collapse;
}

.ion-table thead {
    display: table-header-group;
    /* Mostrar cabecera */
}

.ion-table tr {
    display: table-row;
    /* Revertido a fila */
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.ion-table td {
    display: table-cell;
    /* Revertido a celda */
    text-align: center;
    padding: 10px 5px;
    border-bottom: 1px solid #eee;
    vertical-align: middle;
}

.ion-table td:nth-child(1) {
    text-align: left;
    font-weight: 600;
    color: var(--dark-blue);
    font-size: var(--fs-sm);
    border-bottom: 1px solid #eee !important;
    margin-bottom: 0;
    padding-bottom: 10px;
}

/* Inputs para 5 caracteres */
.ion-table input {
    width: 120px;
    padding: 8px 10px;
    text-align: center;
    font-size: 15px;
    border: 1.5px solid #ddd;
    border-radius: 4px;
}

.ion-table .input-with-unit {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    justify-content: center;
}

.ion-table .input-with-unit input {
    width: 120px;
    /* Ajustado proporcionalmente para desktop */
}

.ion-table .unit {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    min-width: 35px;
    text-align: left;
}

/* Optimización para Móvil y Tablet: Tabla unificada y compacta (Refinado) */
@media (max-width: 1024px) {
    .table-container {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        /* Scroll suave en iOS */
        border-radius: var(--border-radius);
        background: var(--white);
        box-shadow: var(--glass-shadow);
        border: 1px solid #eee;
        margin-bottom: var(--space-md);
    }

    .ion-table {
        display: table;
        width: 100%;
        min-width: 580px;
        /* 🔑 Garantiza que la tabla no se colapse */
        white-space: nowrap;
        /* 🔑 Evita que los textos se rompan */
        border-collapse: collapse;
    }

    .ion-table td {
        padding: 8px 3px;
        font-size: 0.8rem;
    }

    .ion-table input {
        width: 60px;
        /* Tamaño compacto para ~5 caracteres en móvil/tablet */
        font-size: 13px;
        padding: 5px 2px;
    }

    .ion-table .input-with-unit input {
        width: 50px;
    }

    .ion-table .unit {
        min-width: 25px;
    }
}

/* ====================================================
   CAJONES DE RESULTADOS
==================================================== */
.result-box {
    background-color: var(--light-green);
    border-left: 5px solid var(--primary-green);
    padding: var(--space-md);
    border-radius: var(--border-radius);
    margin-top: var(--space-sm);
    font-weight: 700;
    color: var(--dark-green);
    font-size: var(--fs-lg);
    line-height: 1.5;
}

.result-box.danger {
    background-color: #f8dbcf;
    border-left-color: #dc3545;
    color: #a71d2a;
}

.result-box.warning {
    background-color: #fff3cd;
    border-left-color: #ffc107;
    color: #856404;
}


/* ====================================================
   HERO INDEX — Cards de herramientas
==================================================== */
#herramientas {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
    /* Mobile: padding reducido */
}

/* Título del ecosistema — escalable */
.ecosystem-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.8rem, 6vw, 2.8rem);
    margin-bottom: clamp(24px, 5vw, 60px);
    text-align: center;
}

/* Botones de acción en cards del index */
.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: auto;
}

.card-actions .btn-dark {
    flex: 2;
    min-width: 120px;
    background: var(--noir-bg);
    color: var(--white);
}

.card-actions .btn-outline-tan {
    flex: 1;
    min-width: 80px;
    background: transparent;
    color: var(--accent-tan);
    border: 1.5px solid var(--accent-tan);
    font-size: var(--fs-sm);
}

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

.btn-tan:hover {
    background: var(--accent-tan-light);
}

/* Card que ocupa todo el ancho en el grid */
.card-full {
    grid-column: 1 / -1;
    /* Siempre ocupa todo el ancho disponible */
}


/* ====================================================
   GRÁFICO TERNARIO
==================================================== */
.ternary-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    justify-content: center;
    padding: var(--space-md);
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--glass-shadow);
}

.ternary-box {
    text-align: center;
    flex: 1;
    min-width: min(300px, 100%);
    /* Responsivo sin overflow */
}

.ternary-box h4 {
    color: var(--primary-green);
    margin-bottom: var(--space-sm);
}

.t-line {
    stroke: var(--firefly-200);
    stroke-width: 0.3px;
    vector-effect: non-scaling-stroke;
}

.t-tick {
    font-size: 2px;
    fill: var(--firefly-700);
    font-weight: 500;
}

.t-label {
    font-size: 3px;
    fill: var(--dark-blue);
    font-weight: bold;
}

.poly-cation {
    fill: rgba(220, 53, 69, 0.25);
    stroke: #b02a37;
    stroke-width: 0.4px;
    stroke-dasharray: 1 0.5;
    vector-effect: non-scaling-stroke;
}

.poly-anion {
    fill: rgba(255, 193, 7, 0.25);
    stroke: #d39e00;
    stroke-width: 0.4px;
    stroke-dasharray: 1 0.5;
    vector-effect: non-scaling-stroke;
}


/* ====================================================
   TANQUES DE INYECCIÓN
==================================================== */
.tanks-grid {
    display: grid;
    grid-template-columns: 1fr;
    /* 1 columna en móvil */
    gap: var(--space-lg);
    margin-top: var(--space-md);
}

.tank-group {
    text-align: center;
    background: var(--white);
    padding: var(--space-sm);
    border-radius: var(--border-radius);
    border: 1px solid var(--glass-border);
}

.tank-group .form-group {
    max-width: 320px;
    margin: 0 auto 4px auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}

.tank-group .form-group label {
    font-size: var(--fs-xs);
    white-space: nowrap;
    flex: 0 0 130px;
    text-align: left;
    margin-bottom: 0;
}

.tank-group .form-group .input-with-unit {
    flex: 1;
}

.tank-visual {
    width: 260px;
    height: 285px;
    margin: 0 auto;
    position: relative;
}

.tank-svg {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
}

.tank-body {
    fill: none;
    stroke: var(--dark-blue);
    stroke-width: 0.3;
}

.tank-liquid {
    fill: var(--firefly-300);
    opacity: 0.3;
    transition: y 0.5s ease, height 0.5s ease;
}

.tank-label {
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 2px;
    display: block;
    font-size: var(--fs-lg);
}

.fertilizer-list-tank {
    position: absolute;
    top: 50px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    list-style: none;
    padding: 5px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    background: transparent;
    border: none;
    overflow-y: auto;
    scrollbar-width: none;
    z-index: 5;
}

.fertilizer-list-tank::-webkit-scrollbar {
    display: none;
}

.fert-item-tank {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(2px);
    border: 1px solid rgba(0, 0, 0, 0.12);
    padding: 4px 8px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.72rem;
    color: var(--dark-blue);
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
    position: relative;
    z-index: 20;
}

.fert-item-tank.incompatible {
    background-color: rgba(220, 53, 69, 0.15);
    border-color: #dc3545;
    color: #c53030;
    font-weight: 700;
}

.compatible-fert-list {
    margin-top: var(--space-lg);
}

.compatible-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.fert-chip {
    background: var(--light-blue);
    color: var(--dark-blue);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: var(--fs-sm);
    cursor: pointer;
    border: 1.5px solid var(--primary-blue);
    transition: all 0.2s ease;
    font-weight: 500;
    min-height: var(--touch-target);
    display: inline-flex;
    align-items: center;
}

.fert-chip:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.precipitate-warning {
    display: none;
    margin-top: var(--space-md);
    padding: var(--space-md);
    background-color: #fff5f5;
    border-left: 5px solid #dc3545;
    color: #c53030;
    border-radius: var(--border-radius);
    font-weight: 600;
    line-height: 1.5;
}


/* ====================================================
   FOOTER
==================================================== */
footer {
    background-color: var(--noir-bg);
    color: var(--slate-text);
    text-align: center;
    padding: 50px var(--space-md);
    margin-left: 0;
}

footer p {
    font-size: var(--fs-sm);
    letter-spacing: 0.5px;
    line-height: 1.8;
}

footer a {
    color: var(--slate-text);
    text-decoration: none;
    transition: color var(--transition-speed);
}

footer a:hover {
    color: var(--white);
}


/* ====================================================
   MODAL DONACIÓN
==================================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: var(--white);
    margin: auto;
    padding: var(--space-lg);
    border: 1px solid var(--glass-border);
    width: 100%;
    max-width: 450px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    position: relative;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close-modal {
    color: #999;
    position: absolute;
    top: var(--space-sm);
    right: var(--space-md);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

.close-modal:hover {
    color: var(--dark-blue);
}


/* ====================================================
   ANIMACIONES
==================================================== */
@keyframes pulse-red {
    0% {
        box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(220, 53, 69, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(220, 53, 69, 0);
    }
}

/* ====================================================
   UTILIDADES
==================================================== */
.print-header {
    display: none;
}




/* ====================================================
   ↕  BREAKPOINTS — Mobile First
==================================================== */

/* ── 2. Móviles grandes (481px – 768px) ─────────── */
@media (min-width: 481px) {
    main {
        padding: var(--space-md) var(--space-lg);
    }

    .hero {
        padding: 80px var(--space-md) 60px;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    #herramientas {
        padding: 50px var(--space-lg);
    }

    .ad-placeholder.vertical {
        height: 450px;
    }
}

/* ── 3. Tablet (769px – 1024px) ──────────────────── */
@media (min-width: 769px) {

    :root {
        --header-height: 72px;
    }

    /* Header */
    .header-container {
        padding: 0 var(--space-lg);
    }

    .hamburger-btn {
        display: none;
    }

    .menu ul {
        display: flex;
        flex-direction: row;
        position: static;
        width: auto;
        padding: 0;
        border-top: none;
        box-shadow: none;
        gap: 32px;
        background: transparent;
    }

    .menu a {
        font-size: var(--fs-sm);
        padding: 0;
        letter-spacing: 1.5px;
        width: auto;
    }

    /* Sidebar — icono colapsado, expande al hover */
    .side-header {
        width: 62px;
        transform: translateX(0);
        overflow: hidden;
        transition: width var(--transition-speed) ease;
    }

    .side-header:hover {
        width: 240px;
        box-shadow: 4px 0 30px rgba(0, 0, 0, 0.3);
    }

    .menu-item .text {
        opacity: 0;
        transform: translateX(-8px);
        transition: opacity var(--transition-speed), transform var(--transition-speed);
        pointer-events: none;
    }

    .side-header:hover .menu-item .text {
        opacity: 1;
        transform: translateX(0);
        pointer-events: auto;
    }

    /* Main con offset del sidebar */
    main {
        margin-left: 62px;
        padding: var(--space-lg);
    }

    /* Index no tiene sidebar → sin offset */
    .page-index main {
        margin-left: 0;
        padding: 0;
    }

    /* Footer con offset */
    footer {
        margin-left: 62px;
        padding: 70px var(--space-lg);
    }

    .page-index footer {
        margin-left: 0;
    }

    /* Dashboard: 2 columnas */
    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

    /* Formularios */
    .grid-2-cols {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-sm) var(--space-lg);
    }

    .form-group-inline {
        flex-direction: row;
        align-items: center;
        gap: var(--space-sm);
    }

    .form-group-inline label {
        flex: 0 0 115px;
        margin-bottom: 0;
    }

    .form-group-inline input {
        flex: 1;
        width: auto;
    }

    /* Tanques en 2 columnas */
    .tanks-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Hero */
    .hero-title {
        font-size: 4rem;
    }

    .hero-description {
        font-size: var(--fs-lg);
    }

    /* Tabla más compacta */
    th,
    td {
        padding: 12px 10px;
    }
}

/* ── 4. Desktop / Laptop (> 1024px) ─────────────── */
@media (min-width: 1025px) {

    :root {
        --header-height: 80px;
    }

    /* Sidebar más ancho al hover */
    .side-header:hover {
        width: 250px;
    }

    /* Layout con sidebar de anuncios */
    .layout-with-ads {
        grid-template-columns: 1fr 280px;
        gap: var(--space-lg);
    }

    /* Index sigue sin sidebar en desktop */
    .page-index main {
        margin-left: 0;
    }

    .page-index footer {
        margin-left: 0;
    }

    .ads-sidebar {
        position: sticky;
        top: calc(var(--header-height) + 20px);
        margin-top: 0;
    }

    .ad-placeholder.vertical {
        height: 600px;
    }

    /* Hero grande */
    .hero-title {
        font-size: 4.5rem;
    }

    .hero {
        padding: 130px var(--space-md) 100px;
    }

    /* Cards del dashboard: min-height en desktop */
    .card {
        padding: var(--space-xl);
        min-height: 300px;
    }

    /* herramientas index */
    #herramientas {
        padding: 80px var(--space-xl);
    }

    .hero {
        padding: 120px var(--space-md) 90px;
    }
}



/* ====================================================
   LÁMINA DE RIEGO — Estilos Específicos
==================================================== */
.result-item {
    padding: 15px;
    border-radius: var(--border-radius);
    background: var(--firefly-50);
    border-left: 4px solid var(--primary-green);
}

.result-item h4 {
    margin-bottom: 5px;
    color: var(--dark-green);
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-main);
}

/* Estilo específico para interpretación */
#interpretacion {
    line-height: 1.7;
    font-size: 0.95rem;
}

#interpretacion ul {
    margin-top: 10px;
    padding-left: 20px;
}

#interpretacion li {
    margin-bottom: 5px;
}

/* Ajuste responsivo avanzado para el Dashboard de Lámina de Riego */
@media (min-width: 481px) {
    #app-lamina-riego .dashboard-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        /* Tablets: 2 columnas */
    }
}

@media (min-width: 1025px) {
    #app-lamina-riego .dashboard-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        /* Desktop: 3 columnas */
    }
}


/* ====================================================
   IMPRESIÓN — @media print
==================================================== */
@media print {
    @page {
        size: A4;
        margin: 18mm;
    }

    body {
        padding-top: 0;
        background-color: white;
        font-size: 10pt;
    }

    header,
    .side-header,
    footer,
    .btn,
    button,
    .no-print,
    .ads-sidebar,
    .hamburger-btn {
        display: none !important;
    }

    main {
        margin-left: 0 !important;
        padding: 0 !important;
        display: block;
    }

    .layout-with-ads {
        grid-template-columns: 1fr !important;
    }

    .main-content {
        max-width: 100%;
        margin: 0;
        padding: 0;
    }

    .page-title {
        text-align: center;
        margin-bottom: 20px;
        font-size: 14pt;
    }

    .print-header {
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        margin-bottom: 20px;
        border-bottom: 2px solid var(--primary-green);
        padding-bottom: 10px;
        width: 100%;
    }

    .print-header img {
        width: 50px;
        height: auto;
        margin-bottom: 4px;
    }

    .print-header span {
        font-size: 13pt;
        font-weight: bold;
        color: var(--dark-blue);
        text-transform: uppercase;
        letter-spacing: 1px;
    }

    .table-container {
        box-shadow: none;
        border: 1px solid #eee;
        page-break-inside: avoid;
        width: 100%;
        overflow: visible;
    }

    table {
        min-width: 0;
    }

    table th,
    table td {
        padding: 3px 5px !important;
        font-size: 8pt !important;
        border: 1px solid #ddd;
    }

    input {
        border: none !important;
        background: transparent !important;
        text-align: center;
        box-shadow: none !important;
        width: 100%;
        font-size: 8pt !important;
    }

    .grid-2-cols {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 5px 15px !important;
    }

    .form-group-inline {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        border-bottom: 1px dotted #ddd;
        margin-bottom: 2px !important;
    }

    .form-group-inline label {
        flex: 0 0 100px !important;
        font-size: 8pt !important;
    }

    .form-group-inline input {
        text-align: left !important;
        font-size: 8pt !important;
    }

    .main-content {
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .card {
        width: 100% !important;
        box-sizing: border-box;
        margin-bottom: 10px !important;
        padding: 8px !important;
        border: 1px solid #eee !important;
        min-height: 0 !important;
        page-break-inside: avoid;
    }

    .card-header {
        font-size: 11pt !important;
        margin-bottom: 6px !important;
        width: 100%;
    }

    .print-section {
        width: 100% !important;
        box-sizing: border-box;
        page-break-inside: avoid;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    /* Tanques en impresión */
    .tanks-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    .tank-group .form-group {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
    }

    .tank-group .form-group label {
        flex: 0 0 120px !important;
    }

    .fertilizer-list-tank {
        position: absolute !important;
        display: flex !important;
        flex-direction: column !important;
        overflow: visible !important;
        z-index: 100 !important;
        top: 55px !important;
    }

    .fert-item-tank {
        background: #ffffff !important;
        border: 1px solid #000 !important;
        color: #000 !important;
        font-weight: bold !important;
        font-size: 8pt !important;
        margin-bottom: 2px !important;
        padding: 3px !important;
        display: block !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .fert-item-tank span {
        display: block !important;
        text-align: center !important;
    }

    .fert-item-tank button {
        display: none !important;
    }

    /* Convertidor en impresión: tabla normal */
    .ion-table thead {
        display: table-header-group !important;
    }

    #conversor-tbody {
        display: table-row-group !important;
        grid-template-columns: unset !important;
    }

    .ion-table tr {
        display: table-row !important;
    }

    .ion-table td {
        display: table-cell !important;
        border-bottom: 1px solid #eee !important;
        padding: 4px !important;
    }

    .ion-table td::before {
        display: none !important;
    }

    .ion-table td input {
        width: 100% !important;
        padding: 0 !important;
    }
}

/* ====================================================
   FUNCIONALIDADES ADICIONALES - LEER MÁS
==================================================== */
.card-more-info {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    opacity: 0;
    margin-top: 0;
    font-size: var(--fs-sm);
    color: var(--text-muted);
    border-left: 3px solid var(--primary-green);
    background: var(--firefly-50);
    padding: 0 15px;
    border-radius: 0 4px 4px 0;
}

.card-more-info.active {
    max-height: 1000px;
    opacity: 1;
    margin-top: 15px;
    margin-bottom: 20px;
    padding: 15px;
}

.list-info {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.list-info li {
    display: flex;
    gap: 10px;
    line-height: 1.4;
    text-align: left;
}

.btn-more-info {
    background: none;
    border: 1px solid var(--primary-green);
    color: var(--primary-green);
    padding: 6px 12px;
    font-size: var(--fs-xs);
    border-radius: 4px;
    cursor: pointer;
    margin-top: 5px;
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.3s ease;
    margin-bottom: 15px;
}

.btn-more-info:hover {
    background: var(--primary-green);
    color: white;
}

.btn-more-info svg {
    transition: transform 0.3s ease;
}


.btn-more-info.active svg {
    transform: rotate(180deg);
}

/* Expansión de la tarjeta completa */
@media (min-width: 769px) {
    .card.expanded {
        grid-column: 1 / -1;
        background: #f9fdfc;
        border-color: var(--primary-green);
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
        padding: var(--space-xl); /* Más espacio cuando está expandida */
    }

    .card.expanded .service-image {
        height: 280px; /* Imagen más visible en el resumen expandido */
    }
}

/* En desktop, la lista expandida usa dos columnas para aprovechar el ancho */
@media (min-width: 1025px) {
    .card.expanded .list-info {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px 40px;
    }

    .card.expanded .card-header {
        font-size: var(--fs-2xl); /* Título más imponente */
    }
}

/* Optimización para móviles (pantallas muy pequeñas) */
@media (max-width: 480px) {
    .card.expanded {
        padding: var(--space-md) var(--space-sm);
    }
    .list-info li {
        font-size: 0.85rem;
        gap: 8px;
    }
    .list-info li span:first-child {
        font-size: 1.1rem;
    }
}