/* ============================================
   IDENTIDAD VISUAL: CARBÓN DEL ORIENTE S.A.C.
   Inspiración: Selva amazónica peruana / Iquitos
   Paleta: Verde selva, hoja tierna, ámbar fuego, río amazónico, madera
   ============================================ */

:root {
    --verde-selva: #0F3D2E;
    --verde-profundo: #072A1F;
    --verde-hoja: #2D6A4F;
    --verde-lima: #95D5B2;
    --ambar-fuego: #E97F2C;
    --naranja-brasa: #C65D1F;
    --azul-rio: #264653;
    --madera: #6B4226;
    --crema-tropical: #F5F1E8;
    --blanco-calido: #FEFCF7;
    --texto-carbon: #22201D;
    --gris-suave: #D9D6CE;
}

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

body {
    font-family: 'Trebuchet MS', 'Lucida Sans', Verdana, sans-serif;
    background-color: var(--crema-tropical);
    color: var(--texto-carbon);
    line-height: 1.8;
    background-image: 
        radial-gradient(circle at 15% 20%, rgba(45, 106, 79, 0.06) 0%, transparent 35%),
        radial-gradient(circle at 85% 80%, rgba(233, 127, 44, 0.05) 0%, transparent 40%),
        repeating-linear-gradient(120deg, transparent 0, transparent 90px, rgba(15, 61, 46, 0.02) 90px, rgba(15, 61, 46, 0.02) 91px);
}

/* --- Marco general --- */
.marco {
    width: 94%;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- Tipografía --- */
h1, h2, h3, h4 {
    font-family: 'Palatino Linotype', 'Book Antiqua', Palatino, serif;
    color: var(--verde-profundo);
    letter-spacing: 0.3px;
    line-height: 1.25;
}
h1 { font-size: 2.7rem; }
h2 { 
    font-size: 2rem; 
    margin-bottom: 1.2rem;
    padding-left: 18px;
    border-left: 8px solid var(--ambar-fuego);
}
h3 { 
    font-size: 1.35rem; 
    color: var(--verde-hoja);
    margin-bottom: 0.7rem; 
}

p { margin-bottom: 1.1rem; }

a {
    color: var(--verde-hoja);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.25s ease;
}
a:hover { color: var(--ambar-fuego); }

/* --- Cabecera principal --- */
.cabecera-selva {
    background-color: var(--verde-selva);
    color: var(--blanco-calido);
    padding: 0;
    position: relative;
    border-bottom: 4px solid var(--ambar-fuego);
}
.cabecera-selva::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        repeating-linear-gradient(90deg, transparent 0, transparent 60px, rgba(149, 213, 178, 0.04) 60px, rgba(149, 213, 178, 0.04) 120px);
    pointer-events: none;
}
.cabecera-interior {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    padding: 20px 0;
    position: relative;
    z-index: 1;
}
.marca-logo {
    font-family: 'Palatino Linotype', serif;
    font-size: 1.9rem;
    color: var(--blanco-calido);
    letter-spacing: 0.5px;
}
.marca-logo em {
    color: var(--ambar-fuego);
    font-style: normal;
    font-weight: normal;
}
.info-contacto-cabecera {
    text-align: right;
    font-size: 0.9rem;
    color: var(--verde-lima);
}
.info-contacto-cabecera p { margin: 3px 0; }
.info-contacto-cabecera a { color: var(--ambar-fuego); }

/* --- Menú de navegación --- */
.menu-navegacion {
    background-color: var(--verde-profundo);
    border-bottom: 3px solid var(--madera);
}
.menu-navegacion ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}
.menu-navegacion a {
    display: block;
    padding: 15px 28px;
    color: var(--verde-lima);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-bottom: 4px solid transparent;
    transition: all 0.25s ease;
}
.menu-navegacion a:hover,
.menu-navegacion a.menu-activo {
    color: var(--ambar-fuego);
    border-bottom-color: var(--ambar-fuego);
    background-color: rgba(233, 127, 44, 0.06);
}

/* --- Portada / Hero --- */
.portada {
    background: linear-gradient(160deg, var(--verde-selva) 0%, var(--verde-profundo) 70%, #031a12 100%);
    color: var(--blanco-calido);
    padding: 90px 25px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.portada::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 150px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 150' preserveAspectRatio='none'%3E%3Cpath fill='%23F5F1E8' fill-opacity='0.12' d='M0,150 L0,80 Q180,40 360,70 T720,60 T1080,80 T1440,50 L1440,150 Z'/%3E%3C/svg%3E");
    background-size: 100% 100%;
    pointer-events: none;
}
.portada::after {
    content: '🌿';
    position: absolute;
    top: 40px;
    right: 40px;
    font-size: 6rem;
    opacity: 0.08;
    pointer-events: none;
}
.portada h1 {
    color: var(--blanco-calido);
    font-size: 2.9rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}
.portada h1 span { color: var(--ambar-fuego); }
.portada p {
    font-size: 1.15rem;
    max-width: 780px;
    margin: 0 auto 2.2rem;
    color: #DCE8E0;
    position: relative;
    z-index: 1;
    text-align: center;
}
.boton-selva {
    display: inline-block;
    background-color: var(--ambar-fuego);
    color: var(--verde-profundo);
    padding: 15px 42px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border: none;
    border-radius: 3px;
    position: relative;
    z-index: 1;
    box-shadow: 0 6px 0 var(--naranja-brasa);
    transition: all 0.2s ease;
}
.boton-selva:hover {
    background-color: var(--naranja-brasa);
    color: var(--blanco-calido);
    box-shadow: 0 3px 0 #9B4615;
    transform: translateY(3px);
    text-decoration: none;
}

/* --- Secciones --- */
.bloque {
    padding: 65px 0;
}
.bloque-verde-suave {
    background-color: rgba(149, 213, 178, 0.12);
}
.bloque-madera {
    background-color: rgba(107, 66, 38, 0.08);
}
.encabezado-central {
    text-align: center;
    margin-bottom: 2.8rem;
}
.encabezado-central h2 {
    display: inline-block;
    border-left: none;
    border-bottom: 5px solid var(--ambar-fuego);
    padding: 0 0 12px 0;
}

/* --- Tarjetas de productos/servicios --- */
.cuadricula-productos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 2.2rem;
}
.tarjeta-carbon {
    background: var(--blanco-calido);
    border: 1px solid var(--gris-suave);
    border-top: 6px solid var(--verde-hoja);
    padding: 2rem;
    border-radius: 4px;
    box-shadow: 0 3px 14px rgba(7, 42, 31, 0.07);
    transition: all 0.3s ease;
}
.tarjeta-carbon:hover {
    border-top-color: var(--ambar-fuego);
    transform: translateY(-4px);
    box-shadow: 0 10px 22px rgba(7, 42, 31, 0.12);
}
.tarjeta-carbon h3 {
    color: var(--verde-profundo);
    padding-bottom: 0.5rem;
    border-bottom: 2px dashed var(--gris-suave);
}
.tarjeta-carbon ul {
    list-style: none;
    padding: 0;
    margin-top: 0.8rem;
}
.tarjeta-carbon li {
    padding: 5px 0 5px 24px;
    position: relative;
    border-bottom: 1px solid #F0EDE4;
    font-size: 0.95rem;
}
.tarjeta-carbon li:last-child { border-bottom: none; }
.tarjeta-carbon li::before {
    content: '🔥';
    position: absolute;
    left: 0;
    font-size: 0.9rem;
}

/* --- Opiniones / Testimonios --- */
.cuadricula-opiniones {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}
.tarjeta-opinion {
    background: var(--blanco-calido);
    border-radius: 4px;
    padding: 2rem 1.8rem 2rem 2rem;
    border-left: 8px solid var(--verde-hoja);
    border-bottom: 4px solid var(--ambar-fuego);
    box-shadow: 0 2px 10px rgba(7, 42, 31, 0.08);
    position: relative;
}
.tarjeta-opinion::before {
    content: '"';
    font-family: 'Palatino Linotype', serif;
    font-size: 5rem;
    color: var(--ambar-fuego);
    position: absolute;
    top: -18px;
    left: 12px;
    line-height: 1;
    opacity: 0.3;
}
.texto-opinion {
    font-style: italic;
    color: #4A4A4A;
    margin-bottom: 1.4rem;
    position: relative;
    padding-top: 12px;
    z-index: 1;
}
.firma-opinion {
    display: flex;
    align-items: center;
    gap: 14px;
}
.foto-firma {
    width: 48px;
    height: 48px;
    background-color: var(--verde-selva);
    color: var(--verde-lima);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    border: 2px solid var(--ambar-fuego);
    transform: rotate(-3deg);
}
.datos-firma strong { display: block; color: var(--verde-profundo); font-size: 0.95rem; }
.datos-firma span { font-size: 0.82rem; color: #777; }

/* --- Contacto --- */
.contacto-doble {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
}
.panel-datos, .panel-formulario {
    flex: 1;
    min-width: 300px;
    background: var(--blanco-calido);
    padding: 2.2rem;
    border-radius: 4px;
    border: 1px solid var(--gris-suave);
    box-shadow: 0 4px 14px rgba(7, 42, 31, 0.08);
}
.panel-datos h3, .panel-formulario h3 {
    color: var(--verde-profundo);
    padding-bottom: 0.7rem;
    margin-bottom: 1.3rem;
    border-bottom: 3px solid var(--ambar-fuego);
}
.panel-formulario input,
.panel-formulario textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 1rem;
    border: 1px solid var(--gris-suave);
    border-radius: 3px;
    font-family: inherit;
    font-size: 0.95rem;
    background-color: var(--crema-tropical);
}
.panel-formulario input:focus,
.panel-formulario textarea:focus {
    border-color: var(--verde-hoja);
    outline: none;
    background-color: var(--blanco-calido);
}
.panel-formulario button {
    background-color: var(--verde-selva);
    color: var(--blanco-calido);
    padding: 14px 28px;
    border: none;
    border-radius: 3px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    width: 100%;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: background-color 0.25s;
}
.panel-formulario button:hover {
    background-color: var(--ambar-fuego);
    color: var(--verde-profundo);
}

/* --- Pie de página --- */
.pie-selva {
    background-color: var(--verde-profundo);
    color: #B6C7BE;
    padding: 55px 0 25px;
    font-size: 0.9rem;
    border-top: 6px solid var(--ambar-fuego);
}
.pie-interior {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 2rem;
}
.columna-pie { flex: 1; min-width: 230px; }
.columna-pie h4 {
    color: var(--verde-lima);
    font-family: 'Trebuchet MS', sans-serif;
    text-transform: uppercase;
    font-size: 0.82rem;
    letter-spacing: 1.5px;
    margin-bottom: 1rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid rgba(149, 213, 178, 0.2);
}
.columna-pie p { margin: 5px 0; }
.columna-pie a { color: #B6C7BE; }
.columna-pie a:hover { color: var(--ambar-fuego); }
.pie-legal {
    text-align: center;
    margin-top: 2.8rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(149, 213, 178, 0.15);
    font-size: 0.82rem;
    color: #7A9086;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .cabecera-interior { flex-direction: column; text-align: center; gap: 12px; }
    .info-contacto-cabecera { text-align: center; }
    .info-contacto-cabecera p { text-align: center; }
    .menu-navegacion ul { flex-direction: column; }
    .menu-navegacion a { text-align: center; border-bottom: 1px solid var(--verde-hoja); }
    .portada h1 { font-size: 2rem; }
    .portada::after { font-size: 3.5rem; top: 15px; right: 15px; }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; padding-left: 12px; border-left-width: 6px; }
    .contacto-doble { flex-direction: column; }
}