@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800;900&display=swap');

:root {
    --verde-claro: #dcfce7;
    --verde: #22c55e;
    --verde-vivo: #19e83a;
    --verde-medio: #059669;
    --verde-oscuro: #064e3b;
    --verde-oliva: #6f8f05;
    --verde-teal: #10b981;

    --fondo: #dcfce7;
    --texto: #0f172a;
    --gris: #64748b;
    --blanco: #ffffff;
    --sombra: 0 20px 45px rgba(6, 78, 59, 0.15);
    --radio: 24px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', Arial, sans-serif;
    color: var(--texto);
    background: linear-gradient(180deg, #f0fdf4, #dcfce7);
}

.landing {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 32px;
}

/* CUADRO PRINCIPAL VERDE */
.hero {
    width: min(1180px, 100%);
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 34px;
    align-items: center;
    min-height: 650px;
    border-radius: 36px;
    overflow: hidden;
    padding: 56px;

    background: radial-gradient(circle at 12% 12%, rgba(25, 232, 58, 0.60), transparent 25%),
                radial-gradient(circle at 85% 85%, rgba(16, 185, 129, 0.55), transparent 30%),
                linear-gradient(135deg, #3fe819 0%, hsl(74, 62%, 46%) 48%, hsl(98, 74%, 34%) 100%) !important;

    box-shadow: var(--sombra);
}

.badge {
    display: inline-flex;
    color: #ffffff;
    font-weight: 800;
    padding: 10px 15px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.28);
    margin-bottom: 18px;
}

.hero-content h1 {
    margin: 0 0 18px;
    color: #ffffff;
    font-size: clamp(42px, 7vw, 82px);
    line-height: .95;
    letter-spacing: -2px;
}

.hero-content p {
    color: #f0fdf4;
    font-size: 18px;
    line-height: 1.7;
    max-width: 650px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 30px;
}

.stats div {
    border-radius: 22px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.stats strong {
    display: block;
    color: #ffffff;
    font-size: 30px;
}

.stats span {
    color: #f0fdf4;
    font-size: 13px;
}

/* FORMULARIO */
.login-card {
    background: rgba(255, 255, 255, 0.96);
    border-radius: 30px;
    padding: 32px;
    box-shadow: var(--sombra);
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.login-header h2 {
    color: #00c853;
    font-size: 30px;
    margin: 0 0 6px;
}

.login-header p {
    color: #64748b;
    margin: 0 0 24px;
}

form label {
    display: block;
    font-weight: 800;
    margin: 14px 0 7px;
    color: #334155;
}

form input {
    width: 100%;
    border: 1px solid #dbe4f0;
    border-radius: 16px;
    padding: 14px 15px;
    outline: none;
    font: inherit;
    background: #eef4ff;
}

form input:focus {
    border-color: #22c55e;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.25);
}

/* BOTONES */
button,
.btn {
    width: 100%;
    border: 0;
    cursor: pointer;
    margin-top: 20px;
    border-radius: 16px;
    padding: 15px 20px;
    color: #ffffff;
    font-weight: 900;
    font-size: 15px;
    background: linear-gradient(135deg, #2563eb, #22c55e);
    box-shadow: 0 16px 28px rgba(34, 197, 94, 0.25);
}

button:hover,
.btn:hover {
    filter: brightness(1.05);
}

button.WHA,
.btn-secondary {
    background: linear-gradient(135deg, #2563eb, #22c55e);
}

.help {
    margin-top: 16px;
    color: #64748b;
    font-size: 14px;
    text-align: center;
}

.alert {
    padding: 12px 14px;
    border-radius: 14px;
    font-weight: 700;
    margin-bottom: 16px;
}

.alert-danger {
    color: #991b1b;
    background: #fee2e2;
}

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 28px;
    }

    .stats {
        grid-template-columns: 1fr;
    }

    .landing {
        padding: 16px;
    }
}